MOLECULAR CHARACTERIZATION OF ISOSPOROID COCCIDIA (ISOSPORA AND ATOXOPLASMA SPP.) IN PASSERINE BIRDS
Prevalence and disease caused by isosporoid coccidia in passerine birds are well recognized, but confusion about the life cycles of the parasites has led to taxonomic inconsistencies. In this study, we characterized segments of the chromosomal small and large-subunit ribosomal RNA (rRNA) genes of co...
Gespeichert in:
| Veröffentlicht in: | The Journal of parasitology 2005-06, Vol.91 (3), p.635-647 |
|---|---|
| Hauptverfasser: | , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 647 |
|---|---|
| container_issue | 3 |
| container_start_page | 635 |
| container_title | The Journal of parasitology |
| container_volume | 91 |
| creator | Schrenzel, Mark D Maalouf, Gabriel A Gaffney, Patricia M Tokarz, Debra Keener, Laura L McClure, Diane Griffey, Stephen McAloose, D Rideout, Bruce A |
| description | Prevalence and disease caused by isosporoid coccidia in passerine birds are well recognized, but confusion about the life cycles of the parasites has led to taxonomic inconsistencies. In this study, we characterized segments of the chromosomal small and large-subunit ribosomal RNA (rRNA) genes of coccidial parasites from 23 species of passerine birds, as well as heat shock protein 70, apicoplast rRNA, and chromosomal 5.8s rRNA genes from a subgroup of these animals, and we correlated genetic data with morphologic findings for different parasite developmental stages, host phylogeny, and overall taxonomic relations within the phylum Apicomplexa. Our findings indicate that isosporoid coccidia of passerine birds are monophyletic but exhibit substantial diversity, with most avian species having one or several unique parasite lineages that underwent synchronous speciation with their hosts, interrupted by sporadic episodes of lateral transmission across species and families. Molecular analyses support a homoxenous life cycle, with sexual forms occurring chiefly in the intestines and asexual merozoites present systemically. Rarely, extraintestinal sexual stages can occur. The passerine coccidia are genetically most closely related to species of Eimeria rather than Isospora. We suggest that these parasites, whether identified from blood merozoite stages or fecal oocysts, be provisionally grouped as a homogeneous clade of individual species in a single taxon and formally named when reliable criteria allowing reclassification of related genera in the suborder Eimeriina are clarified. |
| doi_str_mv | 10.1645/ge-3310 |
| format | Article |
| fullrecord | <record><control><sourceid>jstor_proqu</sourceid><recordid>TN_cdi_proquest_miscellaneous_68493902</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><jstor_id>20059727</jstor_id><sourcerecordid>20059727</sourcerecordid><originalsourceid>FETCH-LOGICAL-b479t-798f4712ca6f5a5f73a5d0bdca8b095cd0edc0bef5b23b8c36a0561bc3fe4f93</originalsourceid><addsrcrecordid>eNp10V1r2zAUBmAxNtYsG_sF2wSj-7hwdyRZtnWpOW5rcCNjpzB2Y2RbKglJ3FnJRf_9VGLWMdiFEJzz8OpwhNBbAhckCvm3OxMwRuAZmhHB4oCykD9HMwBKfV3wM_TKuQ0AcH9eojMSEUg4FzPU36giS28LWeH0WlYyXWVV_lOucrXE6hLntapLVal8gVOVpvkil_jLVJRYLhdYrtQPVRayvpG4LsuLrzhf4lLWtc9ZZvh7Xi3q1-iF1Vtn3kz3HK0us1V6HRTqKk9lEbRhLA5BLBIbxoR2OrJccxszzXto-04nLQje9WD6DlpjeUtZm3Qs0sAj0nbMmtAKNkefTrH34_DraNyh2a1dZ7ZbvTfD0TVREgomgHr48R-4GY7j3o_W0IhzoDGDxKvPJ9WNg3Ojsc39uN7p8aEh0DxuvbnKmsete_l-yju2O9M_uWnNHpxPQLtOb-2o993a_eUEYwmLvHt3cht3GMY_feo_TsR-qjn6cOpbPTT6bvQZtzUFwoAAiTmjTy-162HYm_-O_BvEGZ5m</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2655027308</pqid></control><display><type>article</type><title>MOLECULAR CHARACTERIZATION OF ISOSPOROID COCCIDIA (ISOSPORA AND ATOXOPLASMA SPP.) IN PASSERINE BIRDS</title><source>Jstor Complete Legacy</source><source>MEDLINE</source><source>BioOne</source><creator>Schrenzel, Mark D ; Maalouf, Gabriel A ; Gaffney, Patricia M ; Tokarz, Debra ; Keener, Laura L ; McClure, Diane ; Griffey, Stephen ; McAloose, D ; Rideout, Bruce A</creator><creatorcontrib>Schrenzel, Mark D ; Maalouf, Gabriel A ; Gaffney, Patricia M ; Tokarz, Debra ; Keener, Laura L ; McClure, Diane ; Griffey, Stephen ; McAloose, D ; Rideout, Bruce A</creatorcontrib><description>Prevalence and disease caused by isosporoid coccidia in passerine birds are well recognized, but confusion about the life cycles of the parasites has led to taxonomic inconsistencies. In this study, we characterized segments of the chromosomal small and large-subunit ribosomal RNA (rRNA) genes of coccidial parasites from 23 species of passerine birds, as well as heat shock protein 70, apicoplast rRNA, and chromosomal 5.8s rRNA genes from a subgroup of these animals, and we correlated genetic data with morphologic findings for different parasite developmental stages, host phylogeny, and overall taxonomic relations within the phylum Apicomplexa. Our findings indicate that isosporoid coccidia of passerine birds are monophyletic but exhibit substantial diversity, with most avian species having one or several unique parasite lineages that underwent synchronous speciation with their hosts, interrupted by sporadic episodes of lateral transmission across species and families. Molecular analyses support a homoxenous life cycle, with sexual forms occurring chiefly in the intestines and asexual merozoites present systemically. Rarely, extraintestinal sexual stages can occur. The passerine coccidia are genetically most closely related to species of Eimeria rather than Isospora. We suggest that these parasites, whether identified from blood merozoite stages or fecal oocysts, be provisionally grouped as a homogeneous clade of individual species in a single taxon and formally named when reliable criteria allowing reclassification of related genera in the suborder Eimeriina are clarified.</description><identifier>ISSN: 0022-3395</identifier><identifier>EISSN: 1937-2345</identifier><identifier>DOI: 10.1645/ge-3310</identifier><identifier>PMID: 16108559</identifier><identifier>CODEN: JOPAA2</identifier><language>eng</language><publisher>Lawrence, KS: American Society of Parasitologists</publisher><subject>Animals ; Aves ; Base Sequence ; Biological and medical sciences ; Bird Diseases - parasitology ; Birds ; Coccidia ; coccidiosis ; Coccidiosis - parasitology ; Coccidiosis - veterinary ; Developmental stages ; Disease transmission ; DNA polymerase ; DNA, Protozoan - chemistry ; DNA, Protozoan - isolation & purification ; Eimeriidae - classification ; Eimeriidae - genetics ; Eimeriidae - ultrastructure ; Feces ; Fundamental and applied biological sciences. Psychology ; Genera ; General aspects ; General aspects and techniques. Study of several systematic groups. Models ; Genes ; Genotype ; Genotypes ; Heat shock proteins ; host specificity ; HSP-70 gene ; HSP70 Heat-Shock Proteins - genetics ; Hsp70 protein ; Intestine ; Invertebrates ; Isospora ; Isospora - classification ; Isospora - genetics ; Isospora - ultrastructure ; life cycle (organisms) ; Life cycles ; Merozoites ; Molecular Sequence Data ; molecular systematics ; nucleotide sequences ; Oocysts ; Parasite hosts ; Parasites ; Parasitology ; Passeriformes ; Passeriformes - parasitology ; Phylogeny ; Polymerase Chain Reaction - veterinary ; Reclassification ; ribosomal DNA ; RNA, Ribosomal - genetics ; rRNA ; rRNA 5.8S ; rRNA genes ; Sequence Alignment ; Sexual stages ; Songbirds ; Sparrows ; Speciation ; Species ; Species diversity ; Spleen ; Subgroups ; SYSTEMATICS-PHYLOGENETICS ; Taxonomy ; ultrastructure ; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><ispartof>The Journal of parasitology, 2005-06, Vol.91 (3), p.635-647</ispartof><rights>American Society of Parasitologists</rights><rights>Copyright 2005 American Society of Parasitologists</rights><rights>2005 INIST-CNRS</rights><rights>Copyright Allen Press Inc. Jun 2005</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b479t-798f4712ca6f5a5f73a5d0bdca8b095cd0edc0bef5b23b8c36a0561bc3fe4f93</citedby><cites>FETCH-LOGICAL-b479t-798f4712ca6f5a5f73a5d0bdca8b095cd0edc0bef5b23b8c36a0561bc3fe4f93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://bioone.org/doi/pdf/10.1645/GE-3310$$EPDF$$P50$$Gbioone$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/20059727$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,26955,27901,27902,52338,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16933836$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16108559$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Schrenzel, Mark D</creatorcontrib><creatorcontrib>Maalouf, Gabriel A</creatorcontrib><creatorcontrib>Gaffney, Patricia M</creatorcontrib><creatorcontrib>Tokarz, Debra</creatorcontrib><creatorcontrib>Keener, Laura L</creatorcontrib><creatorcontrib>McClure, Diane</creatorcontrib><creatorcontrib>Griffey, Stephen</creatorcontrib><creatorcontrib>McAloose, D</creatorcontrib><creatorcontrib>Rideout, Bruce A</creatorcontrib><title>MOLECULAR CHARACTERIZATION OF ISOSPOROID COCCIDIA (ISOSPORA AND ATOXOPLASMA SPP.) IN PASSERINE BIRDS</title><title>The Journal of parasitology</title><addtitle>J Parasitol</addtitle><description>Prevalence and disease caused by isosporoid coccidia in passerine birds are well recognized, but confusion about the life cycles of the parasites has led to taxonomic inconsistencies. In this study, we characterized segments of the chromosomal small and large-subunit ribosomal RNA (rRNA) genes of coccidial parasites from 23 species of passerine birds, as well as heat shock protein 70, apicoplast rRNA, and chromosomal 5.8s rRNA genes from a subgroup of these animals, and we correlated genetic data with morphologic findings for different parasite developmental stages, host phylogeny, and overall taxonomic relations within the phylum Apicomplexa. Our findings indicate that isosporoid coccidia of passerine birds are monophyletic but exhibit substantial diversity, with most avian species having one or several unique parasite lineages that underwent synchronous speciation with their hosts, interrupted by sporadic episodes of lateral transmission across species and families. Molecular analyses support a homoxenous life cycle, with sexual forms occurring chiefly in the intestines and asexual merozoites present systemically. Rarely, extraintestinal sexual stages can occur. The passerine coccidia are genetically most closely related to species of Eimeria rather than Isospora. We suggest that these parasites, whether identified from blood merozoite stages or fecal oocysts, be provisionally grouped as a homogeneous clade of individual species in a single taxon and formally named when reliable criteria allowing reclassification of related genera in the suborder Eimeriina are clarified.</description><subject>Animals</subject><subject>Aves</subject><subject>Base Sequence</subject><subject>Biological and medical sciences</subject><subject>Bird Diseases - parasitology</subject><subject>Birds</subject><subject>Coccidia</subject><subject>coccidiosis</subject><subject>Coccidiosis - parasitology</subject><subject>Coccidiosis - veterinary</subject><subject>Developmental stages</subject><subject>Disease transmission</subject><subject>DNA polymerase</subject><subject>DNA, Protozoan - chemistry</subject><subject>DNA, Protozoan - isolation & purification</subject><subject>Eimeriidae - classification</subject><subject>Eimeriidae - genetics</subject><subject>Eimeriidae - ultrastructure</subject><subject>Feces</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Genera</subject><subject>General aspects</subject><subject>General aspects and techniques. Study of several systematic groups. Models</subject><subject>Genes</subject><subject>Genotype</subject><subject>Genotypes</subject><subject>Heat shock proteins</subject><subject>host specificity</subject><subject>HSP-70 gene</subject><subject>HSP70 Heat-Shock Proteins - genetics</subject><subject>Hsp70 protein</subject><subject>Intestine</subject><subject>Invertebrates</subject><subject>Isospora</subject><subject>Isospora - classification</subject><subject>Isospora - genetics</subject><subject>Isospora - ultrastructure</subject><subject>life cycle (organisms)</subject><subject>Life cycles</subject><subject>Merozoites</subject><subject>Molecular Sequence Data</subject><subject>molecular systematics</subject><subject>nucleotide sequences</subject><subject>Oocysts</subject><subject>Parasite hosts</subject><subject>Parasites</subject><subject>Parasitology</subject><subject>Passeriformes</subject><subject>Passeriformes - parasitology</subject><subject>Phylogeny</subject><subject>Polymerase Chain Reaction - veterinary</subject><subject>Reclassification</subject><subject>ribosomal DNA</subject><subject>RNA, Ribosomal - genetics</subject><subject>rRNA</subject><subject>rRNA 5.8S</subject><subject>rRNA genes</subject><subject>Sequence Alignment</subject><subject>Sexual stages</subject><subject>Songbirds</subject><subject>Sparrows</subject><subject>Speciation</subject><subject>Species</subject><subject>Species diversity</subject><subject>Spleen</subject><subject>Subgroups</subject><subject>SYSTEMATICS-PHYLOGENETICS</subject><subject>Taxonomy</subject><subject>ultrastructure</subject><subject>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</subject><issn>0022-3395</issn><issn>1937-2345</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp10V1r2zAUBmAxNtYsG_sF2wSj-7hwdyRZtnWpOW5rcCNjpzB2Y2RbKglJ3FnJRf_9VGLWMdiFEJzz8OpwhNBbAhckCvm3OxMwRuAZmhHB4oCykD9HMwBKfV3wM_TKuQ0AcH9eojMSEUg4FzPU36giS28LWeH0WlYyXWVV_lOucrXE6hLntapLVal8gVOVpvkil_jLVJRYLhdYrtQPVRayvpG4LsuLrzhf4lLWtc9ZZvh7Xi3q1-iF1Vtn3kz3HK0us1V6HRTqKk9lEbRhLA5BLBIbxoR2OrJccxszzXto-04nLQje9WD6DlpjeUtZm3Qs0sAj0nbMmtAKNkefTrH34_DraNyh2a1dZ7ZbvTfD0TVREgomgHr48R-4GY7j3o_W0IhzoDGDxKvPJ9WNg3Ojsc39uN7p8aEh0DxuvbnKmsete_l-yju2O9M_uWnNHpxPQLtOb-2o993a_eUEYwmLvHt3cht3GMY_feo_TsR-qjn6cOpbPTT6bvQZtzUFwoAAiTmjTy-162HYm_-O_BvEGZ5m</recordid><startdate>20050601</startdate><enddate>20050601</enddate><creator>Schrenzel, Mark D</creator><creator>Maalouf, Gabriel A</creator><creator>Gaffney, Patricia M</creator><creator>Tokarz, Debra</creator><creator>Keener, Laura L</creator><creator>McClure, Diane</creator><creator>Griffey, Stephen</creator><creator>McAloose, D</creator><creator>Rideout, Bruce A</creator><general>American Society of Parasitologists</general><general>Allen Press Inc</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7SN</scope><scope>7SS</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>20050601</creationdate><title>MOLECULAR CHARACTERIZATION OF ISOSPOROID COCCIDIA (ISOSPORA AND ATOXOPLASMA SPP.) IN PASSERINE BIRDS</title><author>Schrenzel, Mark D ; Maalouf, Gabriel A ; Gaffney, Patricia M ; Tokarz, Debra ; Keener, Laura L ; McClure, Diane ; Griffey, Stephen ; McAloose, D ; Rideout, Bruce A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b479t-798f4712ca6f5a5f73a5d0bdca8b095cd0edc0bef5b23b8c36a0561bc3fe4f93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Animals</topic><topic>Aves</topic><topic>Base Sequence</topic><topic>Biological and medical sciences</topic><topic>Bird Diseases - parasitology</topic><topic>Birds</topic><topic>Coccidia</topic><topic>coccidiosis</topic><topic>Coccidiosis - parasitology</topic><topic>Coccidiosis - veterinary</topic><topic>Developmental stages</topic><topic>Disease transmission</topic><topic>DNA polymerase</topic><topic>DNA, Protozoan - chemistry</topic><topic>DNA, Protozoan - isolation & purification</topic><topic>Eimeriidae - classification</topic><topic>Eimeriidae - genetics</topic><topic>Eimeriidae - ultrastructure</topic><topic>Feces</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Genera</topic><topic>General aspects</topic><topic>General aspects and techniques. Study of several systematic groups. Models</topic><topic>Genes</topic><topic>Genotype</topic><topic>Genotypes</topic><topic>Heat shock proteins</topic><topic>host specificity</topic><topic>HSP-70 gene</topic><topic>HSP70 Heat-Shock Proteins - genetics</topic><topic>Hsp70 protein</topic><topic>Intestine</topic><topic>Invertebrates</topic><topic>Isospora</topic><topic>Isospora - classification</topic><topic>Isospora - genetics</topic><topic>Isospora - ultrastructure</topic><topic>life cycle (organisms)</topic><topic>Life cycles</topic><topic>Merozoites</topic><topic>Molecular Sequence Data</topic><topic>molecular systematics</topic><topic>nucleotide sequences</topic><topic>Oocysts</topic><topic>Parasite hosts</topic><topic>Parasites</topic><topic>Parasitology</topic><topic>Passeriformes</topic><topic>Passeriformes - parasitology</topic><topic>Phylogeny</topic><topic>Polymerase Chain Reaction - veterinary</topic><topic>Reclassification</topic><topic>ribosomal DNA</topic><topic>RNA, Ribosomal - genetics</topic><topic>rRNA</topic><topic>rRNA 5.8S</topic><topic>rRNA genes</topic><topic>Sequence Alignment</topic><topic>Sexual stages</topic><topic>Songbirds</topic><topic>Sparrows</topic><topic>Speciation</topic><topic>Species</topic><topic>Species diversity</topic><topic>Spleen</topic><topic>Subgroups</topic><topic>SYSTEMATICS-PHYLOGENETICS</topic><topic>Taxonomy</topic><topic>ultrastructure</topic><topic>Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schrenzel, Mark D</creatorcontrib><creatorcontrib>Maalouf, Gabriel A</creatorcontrib><creatorcontrib>Gaffney, Patricia M</creatorcontrib><creatorcontrib>Tokarz, Debra</creatorcontrib><creatorcontrib>Keener, Laura L</creatorcontrib><creatorcontrib>McClure, Diane</creatorcontrib><creatorcontrib>Griffey, Stephen</creatorcontrib><creatorcontrib>McAloose, D</creatorcontrib><creatorcontrib>Rideout, Bruce A</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>ProQuest Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>ProQuest Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>ProQuest Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biological Sciences</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of parasitology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schrenzel, Mark D</au><au>Maalouf, Gabriel A</au><au>Gaffney, Patricia M</au><au>Tokarz, Debra</au><au>Keener, Laura L</au><au>McClure, Diane</au><au>Griffey, Stephen</au><au>McAloose, D</au><au>Rideout, Bruce A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>MOLECULAR CHARACTERIZATION OF ISOSPOROID COCCIDIA (ISOSPORA AND ATOXOPLASMA SPP.) IN PASSERINE BIRDS</atitle><jtitle>The Journal of parasitology</jtitle><addtitle>J Parasitol</addtitle><date>2005-06-01</date><risdate>2005</risdate><volume>91</volume><issue>3</issue><spage>635</spage><epage>647</epage><pages>635-647</pages><issn>0022-3395</issn><eissn>1937-2345</eissn><coden>JOPAA2</coden><abstract>Prevalence and disease caused by isosporoid coccidia in passerine birds are well recognized, but confusion about the life cycles of the parasites has led to taxonomic inconsistencies. In this study, we characterized segments of the chromosomal small and large-subunit ribosomal RNA (rRNA) genes of coccidial parasites from 23 species of passerine birds, as well as heat shock protein 70, apicoplast rRNA, and chromosomal 5.8s rRNA genes from a subgroup of these animals, and we correlated genetic data with morphologic findings for different parasite developmental stages, host phylogeny, and overall taxonomic relations within the phylum Apicomplexa. Our findings indicate that isosporoid coccidia of passerine birds are monophyletic but exhibit substantial diversity, with most avian species having one or several unique parasite lineages that underwent synchronous speciation with their hosts, interrupted by sporadic episodes of lateral transmission across species and families. Molecular analyses support a homoxenous life cycle, with sexual forms occurring chiefly in the intestines and asexual merozoites present systemically. Rarely, extraintestinal sexual stages can occur. The passerine coccidia are genetically most closely related to species of Eimeria rather than Isospora. We suggest that these parasites, whether identified from blood merozoite stages or fecal oocysts, be provisionally grouped as a homogeneous clade of individual species in a single taxon and formally named when reliable criteria allowing reclassification of related genera in the suborder Eimeriina are clarified.</abstract><cop>Lawrence, KS</cop><pub>American Society of Parasitologists</pub><pmid>16108559</pmid><doi>10.1645/ge-3310</doi><tpages>13</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-3395 |
| ispartof | The Journal of parasitology, 2005-06, Vol.91 (3), p.635-647 |
| issn | 0022-3395 1937-2345 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_68493902 |
| source | Jstor Complete Legacy; MEDLINE; BioOne |
| subjects | Animals Aves Base Sequence Biological and medical sciences Bird Diseases - parasitology Birds Coccidia coccidiosis Coccidiosis - parasitology Coccidiosis - veterinary Developmental stages Disease transmission DNA polymerase DNA, Protozoan - chemistry DNA, Protozoan - isolation & purification Eimeriidae - classification Eimeriidae - genetics Eimeriidae - ultrastructure Feces Fundamental and applied biological sciences. Psychology Genera General aspects General aspects and techniques. Study of several systematic groups. Models Genes Genotype Genotypes Heat shock proteins host specificity HSP-70 gene HSP70 Heat-Shock Proteins - genetics Hsp70 protein Intestine Invertebrates Isospora Isospora - classification Isospora - genetics Isospora - ultrastructure life cycle (organisms) Life cycles Merozoites Molecular Sequence Data molecular systematics nucleotide sequences Oocysts Parasite hosts Parasites Parasitology Passeriformes Passeriformes - parasitology Phylogeny Polymerase Chain Reaction - veterinary Reclassification ribosomal DNA RNA, Ribosomal - genetics rRNA rRNA 5.8S rRNA genes Sequence Alignment Sexual stages Songbirds Sparrows Speciation Species Species diversity Spleen Subgroups SYSTEMATICS-PHYLOGENETICS Taxonomy ultrastructure Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution |
| title | MOLECULAR CHARACTERIZATION OF ISOSPOROID COCCIDIA (ISOSPORA AND ATOXOPLASMA SPP.) IN PASSERINE BIRDS |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-12T03%3A30%3A58IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-jstor_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=MOLECULAR%20CHARACTERIZATION%20OF%20ISOSPOROID%20COCCIDIA%20(ISOSPORA%20AND%20ATOXOPLASMA%20SPP.)%20IN%20PASSERINE%20BIRDS&rft.jtitle=The%20Journal%20of%20parasitology&rft.au=Schrenzel,%20Mark%20D&rft.date=2005-06-01&rft.volume=91&rft.issue=3&rft.spage=635&rft.epage=647&rft.pages=635-647&rft.issn=0022-3395&rft.eissn=1937-2345&rft.coden=JOPAA2&rft_id=info:doi/10.1645/ge-3310&rft_dat=%3Cjstor_proqu%3E20059727%3C/jstor_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2655027308&rft_id=info:pmid/16108559&rft_jstor_id=20059727&rfr_iscdi=true |