Impact of Colonization of an Invasive Species on Genetic Differentiation in New Environments: A Study on American Artemia franciscana (Crustacea: Anostraca) in the United Arab Emirates  

作　　者：ASEM Alireza SCHUSTER Rolf EIMANIFAR Amin LU Hao LIU Chunwei WU Xiaofang YAO Liping MENG Xinyu LI Weidong WANG Peizheng 

机构地区：[1]College of Fisheries and Life Science,Hainan Tropical Ocean University,Sanya 572022,China [2]College of Ecology and Environment,Hainan University,Haikou 570208,China [3]Central Veterinary Research Laboratory,Dubai 597,United Arab Emirates [4]Independent Senior Research Scientist,Industrial District,21601 Easton,Maryland 21601,USA [5]College of Ecology and Environment,Hainan Tropical Ocean University,Sanya 572022,China

出　　处：《Journal of Ocean University of China》2021年第4期911-920,共10页中国海洋大学学报（英文版）

基　　金：This project was funded by the Key Research and Development Program from Science and Technology Department of Hainan Province(No.ZDYF2019154).The help of Prof.Jim Clegg(University of California,USA)in English editing is greatly acknowledged.

摘　　要：Artemia franciscana,native to America,has recently colonized as non-indigenous population in Asia,Europe,North Africa,and Australia.We evaluated the effects of the colonization of A.franciscana on genetic differentiation in new environments in the United Arab Emirates(UAE).We used the COI marker to determine the genetic structure and origins of exotic populations in the UAE.Results confirmed the colonization of A.franciscana in two localities.Invasive populations of A.franciscana had significantly lower genetic variation than native populations in the Great Salt Lake and San Francisco Bay.Results showed that the studied populations could not have colonized directly from natural American habitats,and they possibly were from secondary introduction events of other non-indigenous populations.Genetic analysis yielded different demographic patterns for the studied invasive populations.The population in Al Wathba Wetland Reserve(AWWR)demonstrated demographic expansion,whereas in Godolphin Lakes(GL),it reached a demographic equilibrium.Neutrality tests showed an excess of recent and historical mutations in the COI gene pool of invasive AWWR Artemia in the new environment.The results suggest that different ecological conditions in new environments can exert selective pressures during the introduction of an exotic population,which can affect genetic variation.

关 键 词：Artemia franciscana non-native population mtDNA-COI genetic variation biodiversity UAE 

分 类 号：Q958.8[生物学—动物学]