Genetic Structure of Araucaria angustifolia (Araucariaceae) Populations in Brazil: Implications for the in situ Conservation of Genetic Resources
Abstract The distribution of the genetic variation within and among natural populations of A. ANGUSTIFOLIA growing in different regions in Brazil was assessed at microsatellite and AFLP markers. Both markers revealed high gene diversity (H = 0.65; AR = 9.1 for microsatellites and H = 0.27; P = 77.8...
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Veröffentlicht in: | Plant biology (Stuttgart, Germany) Germany), 2007-07, Vol.9 (4), p.516-525 |
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description | Abstract
The distribution of the genetic variation within and among natural populations of A. ANGUSTIFOLIA growing in different regions in Brazil was assessed at microsatellite and AFLP markers. Both markers revealed high gene diversity (H = 0.65; AR
= 9.1 for microsatellites and H = 0.27; P = 77.8 % for AFLPs), moderate overall differentiation (RST
= 0.13 for microsatellites and FST
= 0.10 for AFLPs), but high divergence of the northernmost, geographically isolated population. In a Bayesian analysis, microsatellite data suggested population structure at two levels: at K = 2 and at K = 3 in agreement to the geographical distribution of populations. This result was confirmed by the UPGMA dendrogram based on microsatellite data (bootstrap support > 95 %). Non-hierarchical AMOVA revealed high variation among populations from different A POSTERIORI defined geographical groups. The genetic distance between sample locations increased with geographical distance for microsatellites (R = 0.62; P = 0.003) and AFLPs (R = 0.32; P = 0.09). This pattern of population differentiation may be correlated with population history such as geographical isolation and postglacial colonization of highlands. Implications of the population genetic structure for the conservation of genetic resources are discussed. |
doi_str_mv | 10.1055/s-2007-964974 |
format | Article |
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The distribution of the genetic variation within and among natural populations of A. ANGUSTIFOLIA growing in different regions in Brazil was assessed at microsatellite and AFLP markers. Both markers revealed high gene diversity (H = 0.65; AR
= 9.1 for microsatellites and H = 0.27; P = 77.8 % for AFLPs), moderate overall differentiation (RST
= 0.13 for microsatellites and FST
= 0.10 for AFLPs), but high divergence of the northernmost, geographically isolated population. In a Bayesian analysis, microsatellite data suggested population structure at two levels: at K = 2 and at K = 3 in agreement to the geographical distribution of populations. This result was confirmed by the UPGMA dendrogram based on microsatellite data (bootstrap support > 95 %). Non-hierarchical AMOVA revealed high variation among populations from different A POSTERIORI defined geographical groups. The genetic distance between sample locations increased with geographical distance for microsatellites (R = 0.62; P = 0.003) and AFLPs (R = 0.32; P = 0.09). This pattern of population differentiation may be correlated with population history such as geographical isolation and postglacial colonization of highlands. Implications of the population genetic structure for the conservation of genetic resources are discussed.</description><identifier>ISSN: 1435-8603</identifier><identifier>EISSN: 1438-8677</identifier><identifier>DOI: 10.1055/s-2007-964974</identifier><identifier>PMID: 17401807</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>AFLPs ; Araucaria angustifolia ; Brazil ; Coniferophyta - genetics ; Conserved Sequence - genetics ; genetic diversity ; Genetic Markers ; genetic resources ; Genetic Variation ; Genetics, Population ; Microsatellite Repeats - genetics ; microsatellites ; population history ; population structure ; Research Paper</subject><ispartof>Plant biology (Stuttgart, Germany), 2007-07, Vol.9 (4), p.516-525</ispartof><rights>Georg Thieme Verlag Stuttgart KG · New York</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c366t-aff9da17c4494df6a2cad1b3c6d331ba3269aef185ec5ef3a0b5cea3e7af310c3</citedby><cites>FETCH-LOGICAL-c366t-aff9da17c4494df6a2cad1b3c6d331ba3269aef185ec5ef3a0b5cea3e7af310c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17401807$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Stefenon, V. M.</creatorcontrib><creatorcontrib>Gailing, O.</creatorcontrib><creatorcontrib>Finkeldey, R.</creatorcontrib><title>Genetic Structure of Araucaria angustifolia (Araucariaceae) Populations in Brazil: Implications for the in situ Conservation of Genetic Resources</title><title>Plant biology (Stuttgart, Germany)</title><addtitle>Plant biol (Stuttg)</addtitle><description>Abstract
The distribution of the genetic variation within and among natural populations of A. ANGUSTIFOLIA growing in different regions in Brazil was assessed at microsatellite and AFLP markers. Both markers revealed high gene diversity (H = 0.65; AR
= 9.1 for microsatellites and H = 0.27; P = 77.8 % for AFLPs), moderate overall differentiation (RST
= 0.13 for microsatellites and FST
= 0.10 for AFLPs), but high divergence of the northernmost, geographically isolated population. In a Bayesian analysis, microsatellite data suggested population structure at two levels: at K = 2 and at K = 3 in agreement to the geographical distribution of populations. This result was confirmed by the UPGMA dendrogram based on microsatellite data (bootstrap support > 95 %). Non-hierarchical AMOVA revealed high variation among populations from different A POSTERIORI defined geographical groups. The genetic distance between sample locations increased with geographical distance for microsatellites (R = 0.62; P = 0.003) and AFLPs (R = 0.32; P = 0.09). This pattern of population differentiation may be correlated with population history such as geographical isolation and postglacial colonization of highlands. Implications of the population genetic structure for the conservation of genetic resources are discussed.</description><subject>AFLPs</subject><subject>Araucaria angustifolia</subject><subject>Brazil</subject><subject>Coniferophyta - genetics</subject><subject>Conserved Sequence - genetics</subject><subject>genetic diversity</subject><subject>Genetic Markers</subject><subject>genetic resources</subject><subject>Genetic Variation</subject><subject>Genetics, Population</subject><subject>Microsatellite Repeats - genetics</subject><subject>microsatellites</subject><subject>population history</subject><subject>population structure</subject><subject>Research Paper</subject><issn>1435-8603</issn><issn>1438-8677</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kU1v1DAQhi1E1Za2R66VTwgkUux1Em-4tQvsVqr6BYijNeuMW5ckXvyBgH_BP663m5YTJ4_fefS-Hg8hLzk74qyq3oViwpgsmrpsZPmM7PJSTItpLeXzh7rKNRM75EUId4zxsmF8m-xwWTI-ZXKX_J3jgNFq-jn6pGPySJ2hxx6SBm-BwnCTQrTGdfny-knXCPiGXrpV6iBaNwRqB3ri4Y_t3tPTftVZPerGeRpvcd0PNiY6yyL6nw_dddRj_jUGl7zGsE-2DHQBD8Zzj3z99PHLbFGcXcxPZ8dnhRZ1HQswpmmBS12WTdmaGiYaWr4Uum6F4EsQk7oBNHxaoa7QCGDLKr9aoAQjONNij7za-K68-5EwRNXboLHrYECXgpJMikZOeAaLDai9C8GjUStve_C_FWdqvQMV1HoHarODzB-OxmnZY_uPHj89A283QLy12KO6y4MPedT_-o35NkT89WQH_ruqpZCV-nY-V1eLxeJ89uFEXYt7INyi8A</recordid><startdate>20070701</startdate><enddate>20070701</enddate><creator>Stefenon, V. M.</creator><creator>Gailing, O.</creator><creator>Finkeldey, R.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</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>7X8</scope></search><sort><creationdate>20070701</creationdate><title>Genetic Structure of Araucaria angustifolia (Araucariaceae) Populations in Brazil: Implications for the in situ Conservation of Genetic Resources</title><author>Stefenon, V. M. ; Gailing, O. ; Finkeldey, R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c366t-aff9da17c4494df6a2cad1b3c6d331ba3269aef185ec5ef3a0b5cea3e7af310c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>AFLPs</topic><topic>Araucaria angustifolia</topic><topic>Brazil</topic><topic>Coniferophyta - genetics</topic><topic>Conserved Sequence - genetics</topic><topic>genetic diversity</topic><topic>Genetic Markers</topic><topic>genetic resources</topic><topic>Genetic Variation</topic><topic>Genetics, Population</topic><topic>Microsatellite Repeats - genetics</topic><topic>microsatellites</topic><topic>population history</topic><topic>population structure</topic><topic>Research Paper</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Stefenon, V. M.</creatorcontrib><creatorcontrib>Gailing, O.</creatorcontrib><creatorcontrib>Finkeldey, R.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Plant biology (Stuttgart, Germany)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Stefenon, V. M.</au><au>Gailing, O.</au><au>Finkeldey, R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Genetic Structure of Araucaria angustifolia (Araucariaceae) Populations in Brazil: Implications for the in situ Conservation of Genetic Resources</atitle><jtitle>Plant biology (Stuttgart, Germany)</jtitle><addtitle>Plant biol (Stuttg)</addtitle><date>2007-07-01</date><risdate>2007</risdate><volume>9</volume><issue>4</issue><spage>516</spage><epage>525</epage><pages>516-525</pages><issn>1435-8603</issn><eissn>1438-8677</eissn><abstract>Abstract
The distribution of the genetic variation within and among natural populations of A. ANGUSTIFOLIA growing in different regions in Brazil was assessed at microsatellite and AFLP markers. Both markers revealed high gene diversity (H = 0.65; AR
= 9.1 for microsatellites and H = 0.27; P = 77.8 % for AFLPs), moderate overall differentiation (RST
= 0.13 for microsatellites and FST
= 0.10 for AFLPs), but high divergence of the northernmost, geographically isolated population. In a Bayesian analysis, microsatellite data suggested population structure at two levels: at K = 2 and at K = 3 in agreement to the geographical distribution of populations. This result was confirmed by the UPGMA dendrogram based on microsatellite data (bootstrap support > 95 %). Non-hierarchical AMOVA revealed high variation among populations from different A POSTERIORI defined geographical groups. The genetic distance between sample locations increased with geographical distance for microsatellites (R = 0.62; P = 0.003) and AFLPs (R = 0.32; P = 0.09). This pattern of population differentiation may be correlated with population history such as geographical isolation and postglacial colonization of highlands. Implications of the population genetic structure for the conservation of genetic resources are discussed.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>17401807</pmid><doi>10.1055/s-2007-964974</doi><tpages>10</tpages></addata></record> |
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subjects | AFLPs Araucaria angustifolia Brazil Coniferophyta - genetics Conserved Sequence - genetics genetic diversity Genetic Markers genetic resources Genetic Variation Genetics, Population Microsatellite Repeats - genetics microsatellites population history population structure Research Paper |
title | Genetic Structure of Araucaria angustifolia (Araucariaceae) Populations in Brazil: Implications for the in situ Conservation of Genetic Resources |
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