Please use this identifier to cite or link to this item:
Title: Genetic diversity and relationships among wild and cultivated Stenocereus queretaroensis populations in western Mexico
Author: Ruan-Tejeda, I.
Santerre, A.
Huerta-Martinez, F.M.
Iniguez-Davalos, L.I.
Castro-Felix, P.
Issue Date: 2014
Abstract: Stenocereus queretaroensis is an endemic, chiropterophilous, columnar cactus of economic importance in Mexico. To investigate the effect of artificial selection on genetic diversity, inter-simple sequence repeat (ISSR) markers were used to estimate the genetic variation of wild, orchard, and backyard populations of S. queretaroensis from two regions in western Mexico. Six primers were used to generate 62 bands, of which 39 were polymorphic (62.9%). The total genetic diversity was similar in the wild (HT=0.296) and orchard (HT=0.291) groups, and slightly lower in the backyard group (HT=0.281). Wild populations (FST=0.13) were less differentiated than backyard (FST=0.17) and orchard (FST=0.21) populations. The wild and backyard groups were genetically closer (0.015) than the wild and orchard (0.018) groups. A Mantel test revealed a positive correlation between genetic and geographic distances (r=0.433, p=0.002). In conclusion, gene flow and the prevailing management system have efficiently maintained genetic diversity and facilitated inter-population differentiation in S. queretaroensis. © 2014 Elsevier Ltd.
Appears in Collections:Producción científica UdeG (prueba)

Files in This Item:
There are no files associated with this item.

Items in RIUdeG are protected by copyright, with all rights reserved, unless otherwise indicated.