海南岛3采集地淡水三角涡虫染色体数目及核型分析
摘要:
利用空气干燥法对采自海南岛黎母峰主峰、鹦哥嘴黑榄桥、尖峰岭天池3个采集地淡水三角涡虫的染色体数目及核型进行了分析,结果表明:海南岛三个采集地三角涡虫种群体细胞染色体基数均为8,其中,黎母峰主峰三角涡虫种群体细胞染色体以二倍体为主,占比82.24%,核型公式为2n=2x=16=16m;鹦哥嘴黑榄桥三角涡虫种群体细胞染色体以三倍体为主,占比94.17%,核型公式为2n=2x=16=16m;尖峰岭天池三角涡虫种群体细胞染色体为二倍体和三倍体的混合倍体,多数为二倍体,占比55.2%,少数为三倍体占比33.6%,核型公式分别为2n=2x=16=16m和2n=2x=24=24m.
The chromosome numbers and karyotypes of Dugesia sp. from Limufeng, Heilanqiao and Tianchi of Hainan Island were studied with air-drying method. The results show that the cardinal number of chromosome of Dugesia sp. from 3 localities of Hainan Island is 8. The most cells of Dugesia sp. from Limufeng have the diploid chromosome number of 16 with the karyotype formula of 2 n =2 x =16=16 m and the percentage of diploid cells is 82.24%. The most cells of Dugesia sp. from Heilanqiao have the tiploid chromosome number of 24 with the karyotype formula of 2 n =3 x =24=24 m and the percentage of diploid cells is 94.17%. While the cells of Dugesia sp. collected from Tianchi have diploid (2 n =2 x =16=16 m) and triploid (2 n =3 x =24=24 m) and their percentages are 55.2% and 33.6%.
作者:
董自梅 李欣 刘倩倩 陈广文 刘德增
Dong Zimei;Li Xin;Liu Qianqian;Chen Guangwen;Liu Dezeng(College of Life Sciences,Henan Noemal University,Xinxiang 453007,China)
机构地区:
Betway官方客服生命科学学院
出处:
《Betway官方客服学报:自然科学版》 CAS 北大核心 2018年第6期74-79,共6页
基金:
国家自然科学基金(31570376 31471965 31170357 U1604173) 河南高校创新科技团队(18IRTSTHN022)
关键词:
海南岛 三角涡虫 染色体 核型
Hainan Island Dugesia sp. chromosome karyotype
分类号:
Q953 [生物学—动物学]