Revisiting the genetic diversity and population structure of the endangered Green Sea Turtle (Chelonia mydas) breeding populations in the Xisha (Paracel) Islands, South China Sea

• 作者： 李妹妹 ( 1 ) ; 张婷 ( 1 ) ; 刘云腾 ( 2 ) ; 李育培 ( 2 ) ; 方建恩 ( 3 ) ; 于洋飞 ( 2 ) ; 汪继超 ( 1 ) ; 史海涛 ( 1 ) ; 林柳 ( 1 ) ;
• 作者单位： 1.Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University; 2.Marine Protected Area Administration of Sansha City; 3.Science Unit, Lingnan University, Hong Kong SAR;
• 提交时间：2022-12-22

英文摘要:The Green Sea Turtle (Chelonia mydas) is an umbrella species in the South China Sea, a Chinese national first-level protected wild animal, and the only sea turtle that nests in Chinese waters.The largest C. mydasnesting ground is distributed in the Xisha(Paracel) Islands, which plays a vital role in the survival of sea turtle populations in China. This study reveals the genetic diversityand population structure of the breeding population of C. mydason the Xisha Islandsusing three mitochondrial markers.A total of 15D-loop, 5 Cytochrome b (Cytb), and 7 Cytochrome C Oxidase subunit I (COI)haplotypes were identified in the breeding population of C. mydason theXisha Islands.D-loop haplotypes are distributed in clades III,IV,and VIIIof theC. mydasmitochondrialcontrol region.Clade IV is first clade to bediscoveredin this C. mydaspopulation, and five D-loop haplotypes were alsonewly identified. The haplotype and nucleotide diversity were calculated for each marker: D-loop (0.415 haplotype diversity, 0.00204 nucleotide diversity), Cyt b(0.140, 0.00038) and COI (0.308, 0.00083). The average genetic distance (p) of each molecular markerwas less than0.01. Neutral detection and nucleotide mismatch analysis suggested that the breeding population of C. mydasin the Xisha Islandsdid not experience a population expansion event in recent history.It is recommended that a sea turtle protection area be established in the Xisha Islandsarea to strengthen protection and effectively protect the uniqueness and sustainability of the breeding population of C. mydasin the South China Sea.

• 来自： 李妹妹
• 分类： 生物学 >> 遗传学
• 投稿状态： 正在评审中
• 引用： ChinaXiv:202212.00172 (或此版本 ChinaXiv:202212.00172V1)
  (DOI:10.12074/202212.00172V1)
  (CSTR:32003.36.ChinaXiv.202212.00172.V1)
• 推荐引用方式：李妹妹,张婷,刘云腾,李育培,方建恩,于洋飞,汪继超,史海涛,林柳.(2022).Revisiting the genetic diversity and population structure of the endangered Green Sea Turtle (Chelonia mydas) breeding populations in the Xisha (Paracel) Islands, South China Sea.CSTR:32003.36.ChinaXiv.202212.00172.V1 (点此复制)