00737nas a2200205   4500008004100000245013600041210006900177300001200246490000700258653001300265653000800278653001400286653001300300653001400313653001300327653001400340100001600354700001700370856014400387       2006                        eng d00aSpecies identity and phylogenetic relationship of the pearl oysters in <i>Pinctada</i> Röding, 1798 based on ITS sequence analysis0 aSpecies identity and phylogenetic relationship of the pearl oyst  a240-2500 v3410abivalvia10aIts10amolecules10amollusca10aphylogeny10apinctada10apteriidae1 aYu, Da, Hui1 aChu, Ka, Hou  uhttps://pterioidea.myspecies.info/content/species-identity-and-phylogenetic-relationship-pearl-oysters-ipinctadai-r%C3%B6ding-1798-based-it02116nas a2200205   4500008004100000245011800041210006900159260001400228300001200242490000800254520140900262653000901671653002801680653002201708653002401730653002301754100001601777700001701793856010001810       2006                        eng d00aGenetic variation in wild and cultured populations of the pearl oyster <i>Pinctada fucata </i>from southern China0 aGenetic variation in wild and cultured populations of the pearl   c2006/8/31  a220-2270 v2583 aIn order to provide information for selective breeding program in China, the genetic variation in wild and cultured Pinctada fucata populations from southern China was studied using AFLP markers. Three pairs of primers generated 182 loci among 179 individuals in populations from Beibu Bay, Daya Bay and Sanya Bay. A high level of genetic diversity, ranging from 0.367 in a wild population in Sanya Bay to 0.393 in a wild population in Beibu Bay, and high level of proportion of polymorphic loci were observed within both wild and cultured populations. Yet cultured populations in Sanya Bay and Beibu Bay had more fixed loci than the corresponding wild populations. Genetic differentiation in most pairwise comparisons of populations was significant. AMOVA indicated that genetic variation among populations was very low (1.77%) though significant, while more than 98% variation resided among individuals within population. These findings provide no evidence to show that hatchery practice of pearl oyster in China to date has significantly affected the genetic diversity of the cultured populations, and suggest that all populations are competent for selection. Yet the significant genetic differentiation among most populations implies that any translocation of individuals for genetic improvement program should be managed with caution for the preservation of genetic diversity in natural populations.10aAFLP10aGenetic differentiation10aGenetic diversity10apopulation genetics10aSelective breeding1 aYu, Da, Hui1 aChu, Ka, Hou  uhttp://www.sciencedirect.com/science/article/B6T4D-4JTR8WX-1/2/c420439e28516d3c0ae323e12880e60f02023nas a2200145   4500008004100000245011100041210006900152300001200221490000800233520140900241653009401650100001601744700001701760856010001777       2006                        eng d00aGenetic variation in wild and cultured populations of the pearl oyster Pinctada fucata from southern China0 aGenetic variation in wild and cultured populations of the pearl   a220-2270 v2583 aIn order to provide information for selective breeding program in China, the genetic variation in wild and cultured Pinctada fucata populations from southern China was studied using AFLP markers. Three pairs of primers generated 182 loci among 179 individuals in populations from Beibu Bay, Daya Bay and Sanya Bay. A high level of genetic diversity, ranging from 0.367 in a wild population in Sanya Bay to 0.393 in a wild population in Beibu Bay, and high level of proportion of polymorphic loci were observed within both wild and cultured populations. Yet cultured populations in Sanya Bay and Beibu Bay had more fixed loci than the corresponding wild populations. Genetic differentiation in most pairwise comparisons of populations was significant. AMOVA indicated that genetic variation among populations was very low (1.77%) though significant, while more than 98% variation resided among individuals within population. These findings provide no evidence to show that hatchery practice of pearl oyster in China to date has significantly affected the genetic diversity of the cultured populations, and suggest that all populations are competent for selection. Yet the significant genetic differentiation among most populations implies that any translocation of individuals for genetic improvement program should be managed with caution for the preservation of genetic diversity in natural populations.10aAFLP, Genetic differentiation, Genetic diversity, Population genetics, Selective breeding1 aYu, Da, Hui1 aChu, Ka, Hou  uhttp://www.sciencedirect.com/science/article/B6T4D-4JTR8WX-1/2/c420439e28516d3c0ae323e12880e60f