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仲彬草属和鹅观草属几个种的核型研究

孙根楼, 颜济, 杨俊良   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1993-11-18 发布日期:1993-11-18
  • 通讯作者: 孙根楼

Studies on Karyotypes of Two Species in Kengyilia and Three Species in Roegneria

Sun Gen-lou, Yan Ji, Yang Jun-liang   

  • Received:1900-01-01 Revised:1900-01-01 Online:1993-11-18 Published:1993-11-18
  • Contact: Sun Gen-lou

摘要:

 本文报道了仲彬草属2个种和鹅观草属3个种的核型,其核型均为首次报道。结果如下:
Roegneria nutans,2n=4x=28=26m+2sm;R.abolinii,2n=4x=28=24m+4sm.R.aristiglumis,
2n=6x=42=32m+1Osm(2sat);Kengyilia tahelacana,2n=6x=42=36m(2sat)+6sm(2sat);K.
zhoasuensis,2n=6x=42=34m(4sat)+8sm.根据核型特征,K.tahelacana和K.zhoasuensis两个六
位体种归入K.engyilia属是正确的。

关键词: 仲彬草属, 鹅观草属, 核型分析

Abstract:

The karyotypes of 3 species of Roegneria and 2 species of Kengyilia were
analysed in this paper. They are all reported for the first time, and the karyotype
formulae are as follows: R. nutans, 2n = 4X= 28 = 26m+ 2sm;  R. abolinii, 2n = 4X
=28 = 24m + 4sm;  R. aristiglumis, 2n = 6X = 42 = 32m + 10sm (2sat);  K. tahelacana
2n = 6X = 42 = 36m (2sat)+6sm (2sat); K. zhoasuensis, 2n = 6X= 42 = 34m(4sat)+ 8sm.
According to the characters of karyotypes, K. tahelacana and K. zhoasuensis have
the S, Y, P genomes of genus Kengyilia.  

Key words: Roegneria, Kengyilia, Karyotype analysis