干旱区生态环境知识资源中心(Arid): The impact of one-decade ecological disturbance on genetic changes: a study on the brine shrimp Artemia urmiana from Urmia Lake, Iran

Arid

DOI	10.7717/peerj.7190
	The impact of one-decade ecological disturbance on genetic changes: a study on the brine shrimp Artemia urmiana from Urmia Lake, Iran
	Asem, Alireza 1,2; Eimanifar, Amin ; van Stappen, Gilbert 3,4; Sun, Shi-Chun 1
通讯作者	Sun, Shi-Chun
来源期刊	PEERJ
ISSN	2167-8359
出版年	2019
卷号	7
英文摘要	Urmia Lake, the largest natural habitat of the brine shrimp Artemia urmiana, has progressively desiccated over the last two decades, resulting in a loss of 80% of its surface area and producing thousands of hectares of arid salty land. This ecological crisis has seriously affected the lake's native biodiversity. Artemia urmiana has lost more than 90% of its population during the decade from 1994 (rainy period) to 2004 (drought period) due to salinity increasing to saturation levels (similar to 300 g/l). We studied the influence of this ecological crisis on the genetic diversity of A. urmiana in Urmia Lake, based on one cyst collections in 1994 and 2004. AMOVA analysis on ISSR data demonstrated a 21% genetic variation and there was a 5.5% reduction of polymorphic loci between samples. PCoA showed that 77.42% and 68.75% of specimens clustered separately in 1994 and 2004, respectively. Our analyses of four marker genes revealed different genetic diversity patterns with a decrease of diversity at ITS1 and an increase for Na+/K+ ATPase. There was no notable difference in genetic variation detected for CO/ and 16S genes between the two periods. However, they represented distinctly different haplotypes. ITS1 and COI followed a population expansion model, whereas Na+/K+ ATPase and 16S were under demographic equilibrium without selective pressure in the 1994 samples. Neutrality tests confirmed the excess of rare historical and recent mutations present in COI and ITS1 in both samples. It is evident that a short-term ecological disturbance has impacted the genetic diversity and structure of A. urmiana.
英文关键词	Climate change Urmia lake Artemia Genetic variation Historical mutations Recent mutations Demographic history
类型	Article
语种	英语
国家	Peoples R China ; Belgium
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000473407300002
WOS关键词	STATISTICAL TESTS ; CLIMATE-CHANGE ; POPULATION ; DIVERSITY ; WATER ; EVOLUTIONARY ; NEUTRALITY ; BIODIVERSITY ; TEMPERATURE ; SELECTION
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217911
作者单位	1.Ocean Univ China, Inst Evolut & Marine Biodivers, Qingdao, Shandong, Peoples R China; 2.Hainan Trop Ocean Univ, Coll Life Sci & Ecol, Sanya, Peoples R China; 3.Univ Ghent, Fac Biosci Engn, Lab Aquaculture, Ghent, Belgium; 4.Univ Ghent, Fac Biosci Engn, Artemia Reference Ctr, Ghent, Belgium
推荐引用方式 GB/T 7714	Asem, Alireza,Eimanifar, Amin,van Stappen, Gilbert,et al. The impact of one-decade ecological disturbance on genetic changes: a study on the brine shrimp Artemia urmiana from Urmia Lake, Iran[J],2019,7.
APA	Asem, Alireza,Eimanifar, Amin,van Stappen, Gilbert,&Sun, Shi-Chun.(2019).The impact of one-decade ecological disturbance on genetic changes: a study on the brine shrimp Artemia urmiana from Urmia Lake, Iran.PEERJ,7.
MLA	Asem, Alireza,et al."The impact of one-decade ecological disturbance on genetic changes: a study on the brine shrimp Artemia urmiana from Urmia Lake, Iran".PEERJ 7(2019).