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ICES Journal of Marine Science: Journal du Conseil 2006 63(4):693-704; doi:10.1016/j.icesjms.2006.01.004
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© 2006 International Council for the Exploration of the Sea

Population genetic structure of crimson snapper Lutjanus erythropterus in East Asia, revealed by analysis of the mitochondrial control region

Junbin Zhanga,*, Zeping Caia and Liangmin Huangb

a AMBL&LED, South China Sea Institute of Oceanography, Chinese Academy of Sciences 164 Xingang Road, Guangzhou 510301, P.R. China
b Institute of Oceanography, Chinese Academy of Sciences Qingdao 266071, P.R. China

*Correspondence to J. Zhang: tel: +86 20 89023219; fax: +86 20 84451672. e-mail: jbzhang30{at}vip.sina.com.

The population genetic structure of the crimson snapper Lutjanus erythropterus in East Asia was examined with a 427-bp hypervariable portion of the mtDNA control region. A total of 262 samples were collected and 75 haplotypes were obtained. Neutrality tests (Tajima's and Fu's) suggested that Lutjanus erythropterus in East Asia had experienced a bottleneck followed by population expansion since the late Pleistocene. Despite the low phylogeographic structures in mtDNA haplotypes, a hierarchical examination of populations in 11 localities from four geographical regions using analysis of molecular variance (AMOVA) indicated significant genetic differentiation among regions ({Phi}CT = 0.08564, p < 0.01). Limited gene flow between the eastern region (including a locality in the western Pacific Ocean and two localities in the East Sea) and three geographic regions of the South China Sea largely contributed to the genetic subdivision. However, comparisons among three geographic regions of the South China Sea showed little to no genetic difference. Populations of Lutjanus erythropterus in East Asia are inferred to be divided into two major groups: an eastern group, including populations of the western Pacific Ocean and the East Sea, and a South China Sea group, consisting of populations from northern Malaysia to South China. The results suggest that fishery management should reflect the genetic differentiation and diversity in East Asia.

Keywords: East Asia, Lutjanus erythropterus, mtDNA control region, population genetic structure

Received 2 May 2005; accepted 18 January 2006.


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