首页 | 本学科首页   官方微博 | 高级检索  
     检索      

Cytogenetics of intergeneric hybrids between Brassica species and Orychophragmus violaceus
作者姓名:LI Zaiyun  LIU Yan
作者单位:Department of Agronomy, State Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University, Wuhan 430070, China,Department of Agronomy, State Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University, Wuhan 430070, China
基金项目:Project supported by the National Natural Science Foundation of China (Grant Nos. 39300081, 39770467, 30070413), National Postdoctoral Science Foundation of China, Education Ministry of China, China Scholarship Council, the Natural Science Foundation of Hubei Province, Wuhan Science & Technology Committee and The Nilsson-Ehle Foundation of The Royal Physiographic Society of Sweden.
摘    要:In the sexual intergeneric hybrids between the cultivated Brassica species and Orychophragmus violaceus, both complete separation and partial separation of the parental genomes were found to occur during mitosis and meiosis under genetic control. The cytogenetics of these hybrids was species-specific for Brassica parents. The different chromosome behavior of hybrids with three Brassica diploids ( B. campestris , B. nigra and B. oleracea ) might contribute to the different cytogenetics of hybrids with three tetraploids ( B. napus, B. juncea and B. carinata). Owing to the parental genome separation, Brassica homozygous plants and aneuploids with various chromosome constitutions were identifiable in the progenies of these hybrids, which were valuable for the study of the structure and evolution of Brassica genome and for the breeding of Brassica crops.

关 键 词:Brassica  species    Orychophragmus  violaceus    intergeneric  hybrids    cytogenetics    genome  separation

Cytogenetics of intergeneric hybrids between Brassica species and Orychophragmus violaceus
LI Zaiyun,LIU Yan.Cytogenetics of intergeneric hybrids between Brassica species and Orychophragmus violaceus[J].Progress in Natural Science,2001,11(10):721-727.
Authors:Li Zaiyun  LIU Yan
Institution:Department of Agronomy, State Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University,
Abstract:In the sexual intergeneric hybrids between the cultivated Brassica species and Orychophragmus violaceus, both complete separation and partial separation of the parental genomes were found to occur during mitosis and meiosis under genetic control. The cytogenetics of these hybrids was species-specific for Brassica parents. The different chromosome behavior of hybrids with three Brassica diploids ( B. campestris , B. nigra and B. oleracea ) might contribute to the different cytogenetics of hybrids with three tetraploids ( B. napus, B. juncea and B. carinata). Owing to the parental genome separation, Brassica homozygous plants and aneuploids with various chromosome constitutions were identifiable in the progenies of these hybrids, which were valuable for the study of the structure and evolution of Brassica genome and for the breeding of Brassica crops.
Keywords:Brassica species  Orychophragmus violaceus  intergeneric hybrids  cytogenetics  genome separation
本文献已被 万方数据 等数据库收录!
点击此处可从《自然科学进展(英文版)》浏览原始摘要信息
点击此处可从《自然科学进展(英文版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号