Genetic diversity status of White shrimp Penaeus (Litopenaeus) vannamei broodstock in Mexico

Genetic diversity status of Pacific white shrimp (Litopenaeus vannamei) using SSR markers in Iran

“…This means that the selection genetic diversity in terms of allelic diversity will maintain at original varieties level (Zhi-min et al 2010). In P van 1758 locus, N a was lower and N e , H o , and H e were in the range of Perez-Enriquez et al (2009).…”

“…We had 6 and 4 % reduction of H o in Amiri-Gomishan (0.479-0.450) and Amiri-Gorgeaj (0.479-0.458) populations that represent a 5.4 and 3.6 % increase in inbreeding, respectively. Also, based on loci, we had -Enriquez et al 2009). In this study, mean polymorphic information content (PIC) 0.90, indicated the highly polymorphic nature of the under-studied loci, that can express the number of parents involved in the formation of the next generation is adequate.…”

“…Based on the number of alleles as a main index of genetic diversity, we had reduction of 12.9 % of N a in Amiri population (7.75) to Gomishan population (6.75) (Perez-Enriquez et al 2009). In L. stylirostris, a consistent and progressive reduction in heterozygosity levels was attributed to a severe bottleneck effect in the founder population (Machado- Tamayo 2006).…”

“…Thus, it is important to monitor and control inbreeding (Norris et al 2000) by increasing knowledge about parentage to ensure mating among unrelated individuals (Dong et al 2006). Previous studies have demonstrated the effectiveness of using DNA microsatellite markers for managing genetic diversity and controlling inbreeding in farmed shrimp (Perez-Enriquez et al 2009). Iran experienced heavy losses in shrimp production from 2001 to 2002 that have been attributed to white spot syndrome virus disease (WSSVD).…”

Hsp70 gene polymorphisms in farmed marine shrimp Litopenaeus vannamei populations exposed to white spot disease and infectious myonecrosis

“…Nevertheless, F ST has been widely used to evaluate genetic relationships among cultivated populations. For instance, low genetic differentiation (F ST = 0.015) was reported among six post-larvae producers from Mexico (Perez-Enriquez et al, 2009). In Brazil, little (F ST = 0.000) to moderate (F ST = 0.175) differentiation was observed among nine post-larvae laboratories (Maggioni et al, 2013).…”