CAJ | 학술논문

[目的]研究洞庭湖水系黄颡鱼群体的形态特征和染色体组型。[方法]采用常规生物学形态测量及PHA和秋水仙素活体注射方法,分别对洞庭湖水系沅水和澧水的2个黄颡鱼群体进行形态学特征及染色体组型分析。[结果]沅水和澧水的黄颡鱼在体长/头长、体长/尾柄高、头长/吻长3个比例性状上存在显著差异（P〈0.05）,但它们的染色体数目及组型相同,其染色体数2n=52,核型公式为20M＋12SM＋10ST＋10T,染色体臂数为84。[结论]研究结果对洞庭湖水系野生黄颡鱼资源的保护及开发利用具有一定的理论指导意义。
[목적]연구동정호수계황상어군체적형태특정화염색체조형。[방법]채용상규생물학형태측량급PHA화추수선소활체주사방법,분별대동정호수계원수화례수적2개황상어군체진행형태학특정급염색체조형분석。[결과]원수화례수적황상어재체장/두장、체장/미병고、두장/문장3개비례성상상존재현저차이（P〈0.05）,단타문적염색체수목급조형상동,기염색체수2n=52,핵형공식위20M＋12SM＋10ST＋10T,염색체비수위84。[결론]연구결과대동정호수계야생황상어자원적보호급개발이용구유일정적이론지도의의。
[Objective] The research aimed to study the morphological characteristics and karyotype of Pelteobagrus fulvidraco in Dongting Lake water system.[Method] By using the conventional biological morphometry,PHA and colchicine injection method in vivo,the morphological characteristics and karyotype of P.fulvidraco in Yuanshui River and Lishui River of Dongting Lake were analyzed.[Result] In three ratio traits including standard length/head length,standard length/caudal peduncle depth,head length/snout length,P.fulvidraco of Yuanshui River and Lishui River had significant differences（P0.05）.However,the number and karyotype of their chromosomes were same.The chromosome number was 2n = 52,and the karyotype formula was 20M＋12SM＋10ST＋10T.The number of chromosome arm was 84.[Conclusion] The research result had certain theoretical guidance significance for the protection and utilization of wild P.resource in Dongting Lake water system.