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dc.creatorTuisima Coral,Lady Laura
dc.creatorHlásná Cepková,Petra
dc.creatorLojka,Bohdan
dc.creatorWeber,John C
dc.creatorAlves-Milho,Serafín Filomeno
dc.date2016-01-01
dc.date.accessioned2019-06-12T02:00:44Z
dc.date.available2019-06-12T02:00:44Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-92002016000100007
dc.identifier.urihttps://bibliotecadigital.infor.cl/handle/20.500.12220/28977
dc.descriptionGuazuma 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 (Gjt) 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.
dc.formattext/html
dc.languageen
dc.publisherUniversidad Austral de Chile, Facultad de Ciencias Forestales
dc.relation10.4067/S0717-92002016000100007
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceBosque (Valdivia) v.37 n.1 2016
dc.subjectinter-simple sequence repeat markers
dc.subjectgenetic diversity
dc.subjectgenetic distance
dc.subjectgene flow
dc.subjectgeographic distance
dc.titleGenetic diversity in Guazuma crinita from eleven provenances in the Peruvian Amazon revealed by ISSR markers
dc.typeArtículo de revista


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