GENETIC DIVERSITY OF OCTOPUS MINOR (SASAKI, 1920) INFERRED BY MITOCHONDRIAL NADH DEHYDROGENASE SUBUNIT 2 GENE
GENETIC DIVERSITY OF OCTOPUS MINOR (SASAKI, 1920) INFERRED BY MITOCHONDRIAL NADH DEHYDROGENASE SUBUNIT 2 GENE
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由线粒体 NADH 脱氢酶亚基 2 基因推断的小章鱼 (SASAKI, 1920) 的遗传多样性
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
H.A. Kaleri
中科院分区：
文献类型：
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作者：
F. Muhammad;L. Liu;Z.M. Lü;L. Gong;X. Du;M. Shafi;B. Waryani;H.A. Kaleri
长蛸是中国沿海水域常见的具有重要经济价值的资源。应用线粒体DNA的NADH脱氢酶亚基2（ND2）基因评估了从中国沿海北部到南部采集的8个种群之间的遗传变异。从8个种群的112个个体中检测到24种单倍型。总体上观察到单倍型多样性较高（0.813），核苷酸多样性较低（0.044）。分子方差分析（AMOVA）显示，88.78%的变异存在于种群之间，11.22%的变异存在于种群内部。成对FST值介于 -0.011到0.992之间。温州和东山种群之间的基因流（Nm）比其他种群低得多。邻接（NJ）树将8个种群聚类为3个分支。网络分析显示，两种（单倍型1 - 单倍型9）单倍型分别出现在6个和4个种群中。错配分布在分支二和分支三中呈现单峰模式，这表明种群扩张，而分支一则显示稳定。这种差异可能是由多种原因造成的，包括扩散能力低、受更新世晚期地质时期影响或长江径流对长蛸种群结构的影响。这些结果将增进我们对长蛸更好地开发、保护和管理的理解。
Octopus minor is an economically important resource commonly found in Chinese coastal waters. Mitochondrial DNA.NADH dehydrogenase subunit 2 (ND2) gene were applied to assess genetic variation among eight populations collected.from northern to southern part of China coast. Twenty four haplotypes were detected from 112 individuals of eight.populations. Overall high haplotype (0.813) and low nucleotide diversity (0.044) was observed. AMOVA revealed.(88.78%) variation among population and (11.22%) within population. The pairwise FST ranged between (-0.011 to.0.992. Gene flow (Nm) of Wenzhou and Dongshan population was much lower among others. Neighbour joining (NJ).tree clustered eight populations into three clades. Network analysis revealed that two (Hap1- Hap 9) haplotypes appeared.in six and four populations respectively. The mismatch distribution showed unimodal pattern in calde two and three.which suggested population expansion while clade one showed stability. The deviation might be result of several causes.including low dissemination ability, influenced by late Pleistocene geological period or Changiang River outflow on.population structure of O.minor. These results will enhance our understanding for better exploitation, protection and.management of O.minor