齐口裂腹鱼(Schizothorax prenanti)与金沙鲈鲤(Percocypris pingi)杂交F1代胚胎发育观察及早期生长研究  

Observation of Embryonic Development and Early Growth of F1 Hybrid between Schizothorax prenanti and Percocypris pingi

作　　者：陈夏琳 陈鹏宇 朱思艺 邓龙君 李天才 李杰 应幸 罗伟 杜宗君[1] CHEN Xialin;CHEN Pengyu;ZHU Siyi;DENG Longjun;LI Tiancai;LI Jie;YING Xing;LUO Wei;DU Zongjun(College of Animal Science and Technology,Sichuan Agricultural University,Chengdu 611130,China;Yalong River Hydropower Development Company,Ltd.,Chengdu 610000,China;Sichuan Runjiehongda Aquatic Technology Company,Ltd.,Chengdu 611130,China)

机构地区：[1]四川农业大学动物科技学院,成都611130 [2]雅砻江流域水电开发有限公司,成都610000 [3]四川润杰宏达水产科技有限公司,成都611130

出　　处：《四川农业大学学报》2025年第1期9-15,共7页Journal of Sichuan Agricultural University

基　　金：雅砻江流域水电开发有限公司专项科研项目;国家现代农业技术体系四川淡水鱼创新团队(SCCXTD-2024-15)。

摘　　要：【目的】以齐口裂腹鱼(Schizothorax prenanti)和金沙鲈鲤(Percocypris pingi)为亲本开展杂交,明确杂交子代是否具有正常的生长发育能力。【方法】将齐口裂腹鱼(S.prenanti)和金沙鲈鲤(P.pingi)杂交,获得正交组(SP)、反交组(PS)和齐口裂腹鱼自交组(SS),观察记录杂交子代胚胎发育特征,分析其受精率、孵化率、畸形率、存活率和生长性能。【结果】SP组和PS组的孵化率分别为(16.67±6.66)%、(15.67±2.31)%,显著低于SS组(P<0.05)。91日龄时,SP组和PS组的存活率分别为22%和14%,显著低于SS组(P<0.05)。SP组的畸形率约为33%,而PS组的畸形率高达90%。PS组的体重和全长均显著低于SP组和SS组(P<0.05)。【结论】试验首次证实了齐口裂腹鱼和金沙鲈鲤可进行远缘杂交,SP组可正常生长发育。【Objective】This study aimed to clarify whether the hybrid offspring have normal growth and development,using a crossbreeding was conducted between Schizothorax prenanti and Percocypris pingi.【Method】This study cross the Schizothorax prenanti with the Percocypris pingi hybridization obtained the orthologous progeny group(SP),the reciprocal progeny group(PS),and the self-seeding group of S.prenanti(SS).The developmental characteristics of hybrid offspring embryos were observed and recorded,and their fertilization rate,hatching rate,abnormality rate,survival rate and growth performance were analyzed.【Result】The hatching rates of the SP group and the PS group were(16.67±6.66)%and(15.67±2.31)%,which were significantly lower than those of the SS group(P<0.05).At 91 days of age,the survival rates of the SP group and the PS group were 22%and 14%,respectively,which were significantly lower than those of the SS group(P<0.05).The abnormality rate was about 33%in the SP group,whereas it was as high as 90%in the PS group.The body weight and full length of the PS group were significantly lower than those of the SP and SS groups(P<0.05).【Conclusion】This experiment demonstrated for the first time that S.prenanti and P.pingi can be distantly hybridized,of which the SP group can grow and develop normally.

关 键 词：齐口裂腹鱼 金沙鲈鲤 远缘杂交 胚胎发育 仔稚鱼 

分 类 号：S917.4[农业科学—水产科学]