草业科学2024，Vol.41Issue(7)：1645-1649,5.DOI:10.11829/j.issn.1001-0629.2023-0238
两份海南地方木豆资源的核型分析
Karyotype analysis of two local varieties of Cajanus cajan in Hainan,China
摘要
Abstract
Cajanus cajan is an important legume crop in the tropical and subtropical regions of China,acting as a multi-purpose plant that integrates grain,feed,and medicine.Additionally,as a pioneer plant,C.cajan contributes to soil and water conservation and soil improvement.Despite the long history of cultivation and the high resource diversity of C.cajan in Hainan,there has been limited research on its cytogenetics.In this study,C.cajan from two important C.cajan producing areas in Hainan,'Baoting'and'Baisha',were evaluated.Based on karyotype analysis,the following results were obtained:1)for C.cajan obtained from'Baoting',the karyotype formula was 2n=2x=22=16m+6sm,the ninth group chromosome was observed to have a satellite,and the relative length composition was 2n=1L+5M2+3M1+2s,typed 1A;2)for C.cajan obtained from Baisha,the karyotype formula was 2n=2x=22=20m+2sm,neither satellite nor B chromosome were observed,and the relative length composition was 2n=1L+4M2+5M1+1s,typed 2A.The chromosomal characteristics of the two C.cajan plants from Hainan provide insights into new techniques for C.cajan resource identification,as well as a reference for germplasm innovation and new variety breeding.关键词
木豆/资源/核型分析/随体/对称性Key words
Cajanus cajan/germplasm resource/karyotype analysis/satellite/symmetry引用本文复制引用
程志号,孙长君,郭素霞,曾学蔚,严琳玲,吴琼..两份海南地方木豆资源的核型分析[J].草业科学,2024,41(7):1645-1649,5.基金项目
海南省重点研发项目(ZDYF2023XDNY042) （ZDYF2023XDNY042）
