onlinelibrary.wiley.com Comparative assessment of the genetic variation in selectively bred generations from two geographic populations of ivory shell (Babylonia areolata) - Fu - 2017 Aquaculture Research Jingqiang Fu 3-4 phút Original Article Comparative assessment of the genetic variation in selectively bred generations from two geographic populations of ivory shell (Babylonia areolata) Xuan Luo College of Ocean and Earth Sciences, Xiamen University, Xiamen, China Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Fujian, China Search for more papers by this author Caihuan Ke College of Ocean and Earth Sciences, Xiamen University, Xiamen, China Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Fujian, China State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China Search for more papers by this author Weiwei You Corresponding Author E-mail address: wwyou@xmu.edu.cn College of Ocean and Earth Sciences, Xiamen University, Xiamen, China Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Fujian, China State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China Correspondence: W You, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China E‐mail: wwyou@xmu.edu.cn Search for more papers by this author First published: 08 December 2016 Cited by: Abstract Ivory shell, Babylonia areolata, is one of the commercially important mariculture species in southern China and South‐East Asia The selection programme for growth trait has been conducted since 2010 in two selected lines for three generations, namely the Hainan (H) and Thailand (T) selected lines Ten polymorphic microsatellite loci were used to monitor changes in their genetic diversity and structure during the selection process A relatively high level of overall genetic diversity was observed, while the number of microsatellite allele declined slightly in the mass selection lines Comparative diversity estimates indicated greater genetic diversity in H line than T line Moreover, a relatively weak but significant genetic differentiation was found in both of the selected generations In addition, the higher genetic variation observed in H line is most likely caused by artificial selection while selection bias on a growth advantage for the T population These findings suggest no significant decline of genetic diversity was observed in the presently selected lines and that a potential exists for genetic improvement and development for B areolata ... level of overall genetic diversity was observed, while the number of microsatellite allele declined slightly in the mass selection lines Comparative diversity estimates indicated greater genetic. .. Moreover, a relatively weak but significant genetic differentiation was found in both of the selected generations In addition, the higher genetic variation observed in H line is most likely caused... growth advantage for the T population These findings suggest no significant decline of genetic diversity was observed in the presently selected lines and that a potential exists for genetic improvement