中国鲇形目鱼类核型研究进展
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S 917.4

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国家自然科学基金(31602146);江苏省区域现代农业与环境保护协同创新中心项目(HSXT307);淮阴师范学院博士科研启动项目(31ZCK00);江苏高校品牌专业建设工程资助(TAPP)


Progress of karyotype studies on Siluriformes in China
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National Natural Science Foundation of China (31602146);funds from Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection (HSXT307); the Start-up Funds of Scientific Research of Huaiyin Normal University (31ZCK00);the Top-notch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP).

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    摘要:

    开展鱼类核型分析对鱼类的遗传、变异、分类、系统演化、性别决定、杂交育种以及环境污染监测等研究具有重要意义。鲇形目鱼类在我国水产养殖中占有重要地位,同时也是研究鱼类染色体进化与性染色体分化的良好材料。本文综述了我国35种鲇形目鱼类及其杂交子一代和多倍体的核型研究进展,分析了不同类群中的核型特征,并对部分类群的染色体进化关系进行了探讨,最后展望了鲇形目鱼类核型研究的发展趋势。本文将为我国鲇形目鱼类的染色体与基因组进化等研究提供参考。

    Abstract:

    As the carrier and transmitter of genetic information, the chromosome is the most important component in eukaryotic cells. Karyotype analysis is an intuitive way to understand characters of chromosomes in eukaryote. Understanding karyotypes of fish is of great significance for studies on genetics, variation, classification, systematic evolution, sex determination, cross breeding and environmental pollution monitoring. As an important aquaculture fish family in China, Siluriformes are the good models to study evolution of fish chromosomes and differentiation of sex chromosomes. In the present study, progresses of karyotype studies on 35 catfishes in China, including their hybrids and polyploids, were reviewed when characteristics of the karyotypes and evolutionary relationships of chromosomes among different taxa were analyzed. Finally, development trends of catfish karyotype studies were forecasted. The number of chromosomes in Siluriformes varied from 24 to 100, with 30 of the 35 catfishes owning chromosome numbers in the range of 48~60, and chromosome polymorphisms were reported in five fishes. Moreover, visible sex chromosomes were detected in seven of the 35 fishes. This study will provide useful references for future chromosomal and genomic studies on Siluriformes, and will also be helpful for evolutionary studies of teleost.

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ZHU Chuankun, PAN Zhengjun. Progress of karyotype studies on Siluriformes in China[J]. Journal of Fisheries of China,2022,46(4):657~673

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  • 收稿日期:2020-06-12
  • 最后修改日期:2020-10-06
  • 录用日期:2020-12-03
  • 在线发布日期: 2022-04-15
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