论文
论文标题: A rapid method of sex-specific marker discovery based on NGS and determination of the XX/XY sex-determination system in Channa maculata
作者: Yang, Cheng; Huang, Rong; Ou, Mi; Gui, Bin; Zhao, Jian; He, Libo; Li, Yongming; Liao, Lanjie; Chen, Kunci; Wang, Yaping
出版刊物: AQUACULTURE
出版日期: NOV 15
出版年份: 2020
卷/期:
DOI: 10.1016/j.aquaculture.2020.735499
论文摘要: The discovery of sex-specific markers is of great significance for the study of unisexual breeding and sex-determination mechanisms of fish. The all-male hybrid snakehead is a freshwater aquaculture species with high economic value. The breeding of all-male hybrid snakeheads depends on the discovery of sex-specific markers of Taiwan snakeheads. In this study, 24 females and 24 males of Taiwan snakeheads were sequenced by NGS, and then a set of biological information analysis process was developed to speculate that Taiwan snakeheads were XX / XY sex-determining system, and 1250 male-related contigs were assembled; In combination with indels and SNP sites analysis, Chelex 100 DNA extraction and an HRM scan, two molecular markers (CM286 and CM1053) were selected from 29 male-related contigs, which could clearly distinguish XX females, XY males, and YY supermales; Then, it was confirmed by Sanger sequencing that Taiwan snakeheads had a male heterogamete type, and the ratio of females to males in three full-sib families was all close to 1:1 (P >.05). Therefore, Taiwan snakeheads were determined to be the XX / XY sex-determining system. The results showed that the effective sex-specific markers, combined with the Chelex 100 DNA extraction and HRM scan technology, could realize high-throughput and rapid detection of the three sexes (XX, XY, and YY) of Taiwan snakeheads, and could be directly applied to the breeding of the all-male hybrid snakehead. This process of bioinformatic analysis for sexspecific marker discovery is simple and efficient, and can also be applied to the study of other fish sex-specific marker discovery and sex-determination mechanisms.
== 实验室与学会 ==
  • == 实验室与学会 ==
  • 水产品种创制与高效养殖全国重点实验室
  • 中国科学院藻类生物学重点实验室
  • 农业部淡水养殖病害防治重点实验室
  • 武汉白暨豚保护基金会
  • 湖北省海洋湖沼学会
  • 中国动物学会原生动物学分会
  • 中国动物学会斑马鱼分会
  • 湖北省暨武汉动物学会
  • 中国水产学会鱼病学专业委员会
  • 中国鱼类学会
== 平台建设 ==
  • == 平台建设 ==
  • “一带一路”海域赤潮数据库
  • 国家水生生物种质资源库
  • 国家斑马鱼资源中心
  • 中国科学院淡水藻种库
  • 中国科学院武汉生命科学大型仪器区域中心
  • 湿地生态系统观测研究野外站联盟
  • 中国科学院水生生物研究所分析测试中心
  • 中国科学院超级计算武汉分中心
  • 水生生物博物馆
== 相关网站推荐 ==
  • == 相关网站推荐 ==
  • 中国科学院
  • 农业农村部
  • 科学技术部
  • 生态环境部
  • 国家自然科学基金委员会
  • 中国科学院武汉分院
  • 湖北省科学技术厅
  • 湖北省生态环境厅
  • 湖北省农业农村厅