Karyotype and evolution analysis of vulerable fish Onychostoma lini from China

摘要：

　　The karyotype and chromosomal characteristics of the vulnerable species Onychostoma lini (Wu 1939) from China were studied by examining metaphase chromosome spreads obtained from kidney.According to the 200 metaphase spreads from 10 specimen of Onychostoma lini,captured from the Duliu river (located in the Pearl River system),China,the chromosome formula in the species might be described as 2n=50=12M+8SM+4ST+26T and FN=70.The mean values of chromosome lengths in Onychostoma lini ranged from 7.975 to 14.270 μm,and the haploid chromosome length of the species was 289.111±27.767 μm.This study provides first knowledge on karyotypes in Onychostoma lini which may facilitate aquaculture,conservation practices of the species.Also,the evolutionary level of Onychostoma lini is preliminarily analyzed based on the karyotype of the species in this paper.

关键词： Vulnerable species Onychostoma lini karyotype chromosome evolution

作者: Yinggui Dai

作者单位: College of Animal Sciences Guizhou University Guiyang 550025, China

会议类型: 国际会议

会议名称: 7th International Conference on Systems Biology(第7届计算系统生物学国际研讨会)(ISB2013)

会议地点: 安徽黄山

会议语种:英文

页码: 49-54

在线出版日期: 2013-08-22（万方平台首次上网日期，不代表论文的发表时间）