A Study on Karyotypes and Ag-NORs of Odontobutis potamophila

作     者：Haihua WANG Xiandong XU Wen QIU Bin WU Zhiying TAO Shugan ZHU Haihua WANG;Xiandong XU;Wen QIU;Bin WU;Zhiying TAO;Shugan ZHU

作者机构：Jiangxi Fisheries Research InstituteNanchang 330039 Fisheries Technology Extension Center of Shangrao CountyShangrao 334000China 

出 版 物：《Agricultural Biotechnology》 (农业生物技术（英文版）)

年 卷 期：2018年第7卷第2期

页      面：127-129页

学科分类：0908[农学-水产] 09[农学] 

基　　金：Supported by Science and Technology Support Program of Jiangxi Province(20133BBF60029) Earmarked Fund for Jiangxi Agriculture Research System(JXARS-10) 

主　　题：Odontobutis potamophila Karyotype Ag NORsHomec 

摘      要：In order to obtain cytogenetic data of Odontobutis potamophila,head-kidney cells were collected as experimental materials to prepare chromosome specimen. The karyotypes of O. potamophila and the distribution and amount of transcriptionally active nucleolar organizer regions on chromosomes were analyzed by Giemsa staining and Ag-NORs. The results showed that the number of diploid chromosomes of O. potamophila was 44; the genome of O. potamophila was composed of 44 telocentric chromosomes; the karyotype formula was 2 n = 44 t,NF = 44; Ag-NORs were found in the paracentromeric region of chromosome. The results may lay the foundation for revealing the genetic pattern and chromosomal evolution of O. potamophila and contribute to further genetic breeding of O. potamophila.