Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Progress in Fishery Sciences》 2017-05
Add to Favorite Get Latest Update

The Karyotype and C-Banding of Percocypris pingi

LI Shu;TIE Huaimao;DUAN Jing;ZHAO Zhongmeng;YANG Song;GUO Xiulan;YANG Shiyong;College of Animal Science and Technology, Sichuan Agricultural University;College of Life Science,Sichuan University;College of Pharmacy Bioengineering, Chengdu University;  
Percocypris pingi is one of the endemic fishes in the upper reach of the Yangtze River and is one of the protected fish species in Sichuan Province. In this study, we investigated the ploidy and other cytogenetical characteristics of P. pingi. The karyotype of the renal tissue of P. pingi was examined using PHA injection with air-dry method. The C-band of P. pingi was displayed with modified BSG method. The results showed that the number of chromosomes of P. pingi was 98, and the formula could be expressed as 4 n=98=42 m+30 sm+10 st+16 t, and the arm number(NF) was 170. Sixteen telocentric chromosome of P. pingi was found in this study although unreported in previous studies. Neither small chromosomes nor other heteromorphic chromosomes were found. All the karyotype had the size of the C-band appeared. The types of C-bands of P. pingi were diverse, including centromeric band, telomere band and intermediate band. Multiple C-bands were found in some chromosomes, for example, all types of C-bands were found in m2 and st4. The level of the heterochromatin was 58.824%±0.034%. We confirmed once again that P. pingi was a tetraploid fish. Its chromosomes were ‘plastic' to some extent based on the karyotype and C-bands, indicating that P. pingi might be adaptable to specific habitats in different regions.
【Fund】: 国家自然科学基金(31401488);; 四川省科技厅应用基础研究(2015JY0206);; 四川农业大学大学生创新性实验计划(04060507)共同资助~~
【CateGory Index】: S917.4
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved