Molecular evidence of hybridization in two native invasive species: Tithonia tubaeformis and T. rotundifolia (Asteraceae) in Mexico
The evolutionary genetics of invasive species has been relatively unexplored. Hybridization of invasive populations can generate novel genotypes, stimulating the colonization of new environments. A sunflower complex occurring in Mexico formed by two native invasive species, Tithonia tubaeformis and...
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| Veröffentlicht in: | Plant systematics and evolution 2012-12, Vol.298 (10), p.1947-1959 |
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| container_issue | 10 |
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| container_title | Plant systematics and evolution |
| container_volume | 298 |
| creator | Tovar-Sánchez, Efraín Rodríguez-Carmona, Fabiola Aguilar-Mendiola, Verónica Mussali-Galante, Patricia López-Caamal, Alfredo Valencia-Cuevas, Leticia |
| description | The evolutionary genetics of invasive species has been relatively unexplored. Hybridization of invasive populations can generate novel genotypes, stimulating the colonization of new environments. A sunflower complex occurring in Mexico formed by two native invasive species, Tithonia tubaeformis and T. rotundifolia was analyzed with molecular markers (RAPDs) in five hybrid zones and two pure sites for each parental species. We tested if morphological atypical individuals between T. tubaeformis and T. rotundifolia that occur in sympatry are the result of hybridization between these two species, in which case genetic diversity in mixed stands would be higher in comparison with pure parental stands. Total DNA of 230 individuals was analyzed with 17 diagnostic markers and six species-specific markers. Molecular data support the hypothesis of hybridization and a bidirectional pattern of gene flow in this complex. Cluster analysis suggests that individuals from the same parental species were more similar among themselves than to putative hybrids, indicating occasional hybridization with segregation in hybrid types or backcrossing to parents. Hybrid populations had the highest levels of genetic diversity in comparison with nonmixed/allopatric populations of their putative parentals. We suggest that hybridization between invasive species may result in the creation of genotypes with an increased capacity for colonization of new habitats. Moreover, invasive species with incipient reproductive barriers may overlap with species of narrow distribution range and increase their possible hybridization rates. |
| doi_str_mv | 10.1007/s00606-012-0693-6 |
| format | Article |
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Hybridization of invasive populations can generate novel genotypes, stimulating the colonization of new environments. A sunflower complex occurring in Mexico formed by two native invasive species, Tithonia tubaeformis and T. rotundifolia was analyzed with molecular markers (RAPDs) in five hybrid zones and two pure sites for each parental species. We tested if morphological atypical individuals between T. tubaeformis and T. rotundifolia that occur in sympatry are the result of hybridization between these two species, in which case genetic diversity in mixed stands would be higher in comparison with pure parental stands. Total DNA of 230 individuals was analyzed with 17 diagnostic markers and six species-specific markers. Molecular data support the hypothesis of hybridization and a bidirectional pattern of gene flow in this complex. Cluster analysis suggests that individuals from the same parental species were more similar among themselves than to putative hybrids, indicating occasional hybridization with segregation in hybrid types or backcrossing to parents. Hybrid populations had the highest levels of genetic diversity in comparison with nonmixed/allopatric populations of their putative parentals. We suggest that hybridization between invasive species may result in the creation of genotypes with an increased capacity for colonization of new habitats. Moreover, invasive species with incipient reproductive barriers may overlap with species of narrow distribution range and increase their possible hybridization rates.</description><identifier>ISSN: 0378-2697</identifier><identifier>EISSN: 1615-6110</identifier><identifier>EISSN: 2199-6881</identifier><identifier>DOI: 10.1007/s00606-012-0693-6</identifier><language>eng</language><publisher>Vienna: Springer-Verlag</publisher><subject>Allopatric populations ; Biodiversity ; Biological evolution ; Biomedical and Life Sciences ; Cluster analysis ; Colonization ; Deoxyribonucleic acid ; Diagnostic systems ; DNA ; Evolutionary genetics ; Gene flow ; Genetic diversity ; Genetic hybridization ; Genetic structures ; Genetic variation ; Genetics ; Genotypes ; Hybrid zones ; Hybridity ; Hybridization ; Hybrids ; Indigenous species ; Introduced species ; Invasive species ; Life Sciences ; Markers ; Nonnative species ; Original Article ; Phenotypic traits ; Plant Anatomy/Development ; Plant Ecology ; Plant Sciences ; Plant Systematics/Taxonomy/Biogeography ; Plants ; Population genetics ; Populations ; Sunflowers ; Sympatry ; Tithonia tubaeformis</subject><ispartof>Plant systematics and evolution, 2012-12, Vol.298 (10), p.1947-1959</ispartof><rights>Springer-Verlag 2012</rights><rights>Plant Systematics and Evolution is a copyright of Springer, (2012). 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Hybridization of invasive populations can generate novel genotypes, stimulating the colonization of new environments. A sunflower complex occurring in Mexico formed by two native invasive species, Tithonia tubaeformis and T. rotundifolia was analyzed with molecular markers (RAPDs) in five hybrid zones and two pure sites for each parental species. We tested if morphological atypical individuals between T. tubaeformis and T. rotundifolia that occur in sympatry are the result of hybridization between these two species, in which case genetic diversity in mixed stands would be higher in comparison with pure parental stands. Total DNA of 230 individuals was analyzed with 17 diagnostic markers and six species-specific markers. Molecular data support the hypothesis of hybridization and a bidirectional pattern of gene flow in this complex. Cluster analysis suggests that individuals from the same parental species were more similar among themselves than to putative hybrids, indicating occasional hybridization with segregation in hybrid types or backcrossing to parents. Hybrid populations had the highest levels of genetic diversity in comparison with nonmixed/allopatric populations of their putative parentals. We suggest that hybridization between invasive species may result in the creation of genotypes with an increased capacity for colonization of new habitats. Moreover, invasive species with incipient reproductive barriers may overlap with species of narrow distribution range and increase their possible hybridization rates.</description><subject>Allopatric populations</subject><subject>Biodiversity</subject><subject>Biological evolution</subject><subject>Biomedical and Life Sciences</subject><subject>Cluster analysis</subject><subject>Colonization</subject><subject>Deoxyribonucleic acid</subject><subject>Diagnostic systems</subject><subject>DNA</subject><subject>Evolutionary genetics</subject><subject>Gene flow</subject><subject>Genetic diversity</subject><subject>Genetic hybridization</subject><subject>Genetic structures</subject><subject>Genetic variation</subject><subject>Genetics</subject><subject>Genotypes</subject><subject>Hybrid zones</subject><subject>Hybridity</subject><subject>Hybridization</subject><subject>Hybrids</subject><subject>Indigenous species</subject><subject>Introduced species</subject><subject>Invasive species</subject><subject>Life Sciences</subject><subject>Markers</subject><subject>Nonnative species</subject><subject>Original Article</subject><subject>Phenotypic traits</subject><subject>Plant Anatomy/Development</subject><subject>Plant Ecology</subject><subject>Plant Sciences</subject><subject>Plant Systematics/Taxonomy/Biogeography</subject><subject>Plants</subject><subject>Population genetics</subject><subject>Populations</subject><subject>Sunflowers</subject><subject>Sympatry</subject><subject>Tithonia tubaeformis</subject><issn>0378-2697</issn><issn>1615-6110</issn><issn>2199-6881</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kMlKBDEQhoMoOC4P4EEIeNFDa5bppNubiBsoXsZziOmKZhiTMUmPy9UXN02L3jxVFfUv8CG0R8kxJUSeJEIEERWhrCKi5ZVYQxMqaF0JSsk6mhAum4qJVm6irZTmhFAppnKCvu7CAky_0BHDynXgDeBg8fPHY3Sd-9TZBY-dx_ktYF-uFZRrpdOwpCUYB-kUz1x-Dt5pnPtHDTbEF5ew9h2eHeMYcu87Z8Oi_A_PUoaoDWg4GlLv4N2ZsIM2rF4k2P2Z2-jh8mJ2fl3d3l_dnJ_dVobzJlecUsaZkZqattFWWF4bUTdUW8kMiNYwIqQQlmpOW1tPGwakgQLBAuvYtOHb6GDMXcbw2kPKah766EulYqxuuRwgFRUdVSaGlCJYtYzuRccPRYkaWKuRtSqs1cBaieJhoycVrX-C-Jf8n2l_NM1TDvG3ZcrruuEt49_5oYv6</recordid><startdate>20121201</startdate><enddate>20121201</enddate><creator>Tovar-Sánchez, Efraín</creator><creator>Rodríguez-Carmona, Fabiola</creator><creator>Aguilar-Mendiola, Verónica</creator><creator>Mussali-Galante, Patricia</creator><creator>López-Caamal, Alfredo</creator><creator>Valencia-Cuevas, Leticia</creator><general>Springer-Verlag</general><general>Springer Vienna</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X2</scope><scope>8FE</scope><scope>8FH</scope><scope>8FK</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>LK8</scope><scope>M0K</scope><scope>M7P</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope></search><sort><creationdate>20121201</creationdate><title>Molecular evidence of hybridization in two native invasive species: Tithonia tubaeformis and T. rotundifolia (Asteraceae) in Mexico</title><author>Tovar-Sánchez, Efraín ; Rodríguez-Carmona, Fabiola ; Aguilar-Mendiola, Verónica ; Mussali-Galante, Patricia ; López-Caamal, Alfredo ; Valencia-Cuevas, Leticia</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c338t-311232c7a1c98af6f35c6581af72ce69c206766f1a319f5482e08e161fe2d2483</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Allopatric populations</topic><topic>Biodiversity</topic><topic>Biological evolution</topic><topic>Biomedical and Life Sciences</topic><topic>Cluster analysis</topic><topic>Colonization</topic><topic>Deoxyribonucleic acid</topic><topic>Diagnostic systems</topic><topic>DNA</topic><topic>Evolutionary genetics</topic><topic>Gene flow</topic><topic>Genetic diversity</topic><topic>Genetic hybridization</topic><topic>Genetic structures</topic><topic>Genetic variation</topic><topic>Genetics</topic><topic>Genotypes</topic><topic>Hybrid zones</topic><topic>Hybridity</topic><topic>Hybridization</topic><topic>Hybrids</topic><topic>Indigenous species</topic><topic>Introduced species</topic><topic>Invasive species</topic><topic>Life Sciences</topic><topic>Markers</topic><topic>Nonnative species</topic><topic>Original Article</topic><topic>Phenotypic traits</topic><topic>Plant Anatomy/Development</topic><topic>Plant Ecology</topic><topic>Plant Sciences</topic><topic>Plant Systematics/Taxonomy/Biogeography</topic><topic>Plants</topic><topic>Population genetics</topic><topic>Populations</topic><topic>Sunflowers</topic><topic>Sympatry</topic><topic>Tithonia tubaeformis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tovar-Sánchez, Efraín</creatorcontrib><creatorcontrib>Rodríguez-Carmona, Fabiola</creatorcontrib><creatorcontrib>Aguilar-Mendiola, Verónica</creatorcontrib><creatorcontrib>Mussali-Galante, Patricia</creatorcontrib><creatorcontrib>López-Caamal, Alfredo</creatorcontrib><creatorcontrib>Valencia-Cuevas, Leticia</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Agricultural Science Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agricultural Science Database</collection><collection>Biological Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><jtitle>Plant systematics and evolution</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tovar-Sánchez, Efraín</au><au>Rodríguez-Carmona, Fabiola</au><au>Aguilar-Mendiola, Verónica</au><au>Mussali-Galante, Patricia</au><au>López-Caamal, Alfredo</au><au>Valencia-Cuevas, Leticia</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Molecular evidence of hybridization in two native invasive species: Tithonia tubaeformis and T. rotundifolia (Asteraceae) in Mexico</atitle><jtitle>Plant systematics and evolution</jtitle><stitle>Plant Syst Evol</stitle><date>2012-12-01</date><risdate>2012</risdate><volume>298</volume><issue>10</issue><spage>1947</spage><epage>1959</epage><pages>1947-1959</pages><issn>0378-2697</issn><eissn>1615-6110</eissn><eissn>2199-6881</eissn><abstract>The evolutionary genetics of invasive species has been relatively unexplored. Hybridization of invasive populations can generate novel genotypes, stimulating the colonization of new environments. A sunflower complex occurring in Mexico formed by two native invasive species, Tithonia tubaeformis and T. rotundifolia was analyzed with molecular markers (RAPDs) in five hybrid zones and two pure sites for each parental species. We tested if morphological atypical individuals between T. tubaeformis and T. rotundifolia that occur in sympatry are the result of hybridization between these two species, in which case genetic diversity in mixed stands would be higher in comparison with pure parental stands. Total DNA of 230 individuals was analyzed with 17 diagnostic markers and six species-specific markers. Molecular data support the hypothesis of hybridization and a bidirectional pattern of gene flow in this complex. Cluster analysis suggests that individuals from the same parental species were more similar among themselves than to putative hybrids, indicating occasional hybridization with segregation in hybrid types or backcrossing to parents. Hybrid populations had the highest levels of genetic diversity in comparison with nonmixed/allopatric populations of their putative parentals. We suggest that hybridization between invasive species may result in the creation of genotypes with an increased capacity for colonization of new habitats. Moreover, invasive species with incipient reproductive barriers may overlap with species of narrow distribution range and increase their possible hybridization rates.</abstract><cop>Vienna</cop><pub>Springer-Verlag</pub><doi>10.1007/s00606-012-0693-6</doi><tpages>13</tpages></addata></record> |
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| subjects | Allopatric populations Biodiversity Biological evolution Biomedical and Life Sciences Cluster analysis Colonization Deoxyribonucleic acid Diagnostic systems DNA Evolutionary genetics Gene flow Genetic diversity Genetic hybridization Genetic structures Genetic variation Genetics Genotypes Hybrid zones Hybridity Hybridization Hybrids Indigenous species Introduced species Invasive species Life Sciences Markers Nonnative species Original Article Phenotypic traits Plant Anatomy/Development Plant Ecology Plant Sciences Plant Systematics/Taxonomy/Biogeography Plants Population genetics Populations Sunflowers Sympatry Tithonia tubaeformis |
| title | Molecular evidence of hybridization in two native invasive species: Tithonia tubaeformis and T. rotundifolia (Asteraceae) in Mexico |
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