Journal of Tropical Oceanography ›› 2010, Vol. 29 ›› Issue (5): 88-93.doi: 10.11978/j.issn.1009-5470.2010.05.088cstr: 32234.14.j.issn.1009-5470.2010.05.088

• Marine biology • Previous Articles     Next Articles

Phylogenetic relationships of four Scylla species based on three kinds of mitochondrial sequences

MA Ling-bo, MA Chun-yan, ZHANG Feng-ying, JIANG Ke-ji   

  1. Key and Open Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture; East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China
  • Received:2009-11-25 Revised:2010-04-06 Online:2010-10-30 Published:2011-10-10
  • About author:马凌波(1972—), 男, 福建省连城县人, 研究员, 博士, 主要从事海洋生物技术研究。E-mail: malingbo@sina.com
  • Supported by:

    国家科技支撑计划专题(2006BAD03 B08-09); 中央级公益性科研院所基本科研业务费重点项目(2007Z01); 上海市科学技术委员会课题(10JC1418600, 08DZ1980802)

Abstract:

 Most research supports the idea that there are four species in genus Scylla. Their phylogeny, however, has not been fully understood, especially the interrelationships among S. serrata, S. paramamosain and S. tranquebarica. We analyzed the sequences of 12S rRNA, 16S rRNA and COI gene in all four species of genus Scylla and established the phylogenetic tree by using Bayesian, Maximum Likehood (ML), and Neighbor Joining (NJ) approaches after the sequences were concatenated and partitioned. All three methods produced the same topology. The sister-group relationship between S. paramamosain and S. tranquebarica was highly supported by both Bayesian and ML approaches, with bootstrap value of 95% and Bayesian poste-rior probability of 1.0. S. serrata was the sister group of S. paramamosain and S. tranquebarica (bootstrap = 60%, Bayesian posterior probability = 0.95), while S. olivacea was found as the basal group to the other three species. The phylogenetic in-terrelationships among the four species of genus Scylla were uncovered in this study, which may provide molecular evidence for classification of genus Scylla.

Key words: Scylla, Mitochondrial DNA, phylogeny