Genetic diversity in Guazuma crinita from eleven provenances in the Peruvian Amazon revealed by ISSR markers
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| Format: | Artículo científico |
| Language: | en |
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Universidad Austral de Chile
2016
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| author | Lady Laura Tuisima Coral |
| author_facet | Lady Laura Tuisima Coral |
| contents | Genetic diversity in Guazuma crinita from eleven provenances in the Peruvian Amazon revealed by ISSR markers Lady Laura Tuisima Coral Petra Hlásná Čepková Bohdan Lojka John C Weber Serafín Filomeno Alves-Milho Agrociencias inter gene flow genetic distance genetic diversity geographic distance Guazuma crinita is an important fast-growing timber tree species widely used in agroforestry systems in the Peruvian Amazon. The objectives of our research were (i) to assess genetic diversity of G. crinita using inter-simple sequence repeat (ISSR) markers and (ii) estimate correlation between genetic and geographic distances among provenances. The sample included 44 genotypes from 11 provenances in the Aguaytia and neighboring Pachitea watersheds in the Peruvian Amazon. Ten ISSR primers amplified a total of 65 bands of which 61 were polymorphic (93.8 %). The range of DNA amplification varied from 260 to 2,200 bp. Among the provenances, Macuya exhibited the highest percentage of polymorphic bands (PPB) with 67.7 %, 0.21 Nei’s gene diversity (He) and 0.33 Shannon index (I). Overall genetic differentiation (Gst) was 0.03, indicating 97 % of genetic diversity within provenances. Gene flow (Nm) was 12.9 alleles per generation. Cluster analysis was not related to geographic origin, suggesting a common gene pool. However a weak positive correlation (r = 0.27, P < 0.05) was found between genetic and geographic distance. This is the first study of genetic diversity and structure of G. crinita. We recommend in situ conservation strategies for populations with high levels of genetic diversity. 2016 artículo científico 0304-8799 https://www.redalyc.org/articulo.oa?id=173145672007 en http://www.redalyc.org/revista.oa?id=1731 Bosque application/pdf Universidad Austral de Chile Bosque (Chile) Num.1 Vol.37 |
| format | Artículo científico |
| id | redalyc_173145672007 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Universidad Austral de Chile |
| spellingShingle | Genetic diversity in Guazuma crinita from eleven provenances in the Peruvian Amazon revealed by ISSR markers Lady Laura Tuisima Coral Agrociencias inter gene flow genetic distance genetic diversity geographic distance Genetic diversity in Guazuma crinita from eleven provenances in the Peruvian Amazon revealed by ISSR markers Lady Laura Tuisima Coral Petra Hlásná Čepková Bohdan Lojka John C Weber Serafín Filomeno Alves-Milho Agrociencias inter gene flow genetic distance genetic diversity geographic distance Guazuma crinita is an important fast-growing timber tree species widely used in agroforestry systems in the Peruvian Amazon. The objectives of our research were (i) to assess genetic diversity of G. crinita using inter-simple sequence repeat (ISSR) markers and (ii) estimate correlation between genetic and geographic distances among provenances. The sample included 44 genotypes from 11 provenances in the Aguaytia and neighboring Pachitea watersheds in the Peruvian Amazon. Ten ISSR primers amplified a total of 65 bands of which 61 were polymorphic (93.8 %). The range of DNA amplification varied from 260 to 2,200 bp. Among the provenances, Macuya exhibited the highest percentage of polymorphic bands (PPB) with 67.7 %, 0.21 Nei’s gene diversity (He) and 0.33 Shannon index (I). Overall genetic differentiation (Gst) was 0.03, indicating 97 % of genetic diversity within provenances. Gene flow (Nm) was 12.9 alleles per generation. Cluster analysis was not related to geographic origin, suggesting a common gene pool. However a weak positive correlation (r = 0.27, P < 0.05) was found between genetic and geographic distance. This is the first study of genetic diversity and structure of G. crinita. We recommend in situ conservation strategies for populations with high levels of genetic diversity. 2016 artículo científico 0304-8799 https://www.redalyc.org/articulo.oa?id=173145672007 en http://www.redalyc.org/revista.oa?id=1731 Bosque application/pdf Universidad Austral de Chile Bosque (Chile) Num.1 Vol.37 |
| title | Genetic diversity in Guazuma crinita from eleven provenances in the Peruvian Amazon revealed by ISSR markers |
| topic | Agrociencias inter gene flow genetic distance genetic diversity geographic distance |
| url | https://www.redalyc.org/articulo.oa?id=173145672007 |