青海仲彬草和黑药仲彬草的生物系统学研究

植物分类学报

青海仲彬草和黑药仲彬草的生物系统学研究

张新全,杨俊良,颜济,郑有良,伍碧华

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-03-10 发布日期:1999-03-10
通讯作者: 张新全

Biosystematic studies of Kengyilia melanthera and K. kokonorica (Poaceae: Triticeae)

ZHANG Xin-Quan, YANG Jun-Liang, YEN Chi, ZHENG You-Liang, WU Bi-Hua

Received:1900-01-01 Revised:1900-01-01 Online:1999-03-10 Published:1999-03-10
Contact: ZHANG Xin-Quan

摘要/Abstract

摘要： 黑药仲彬草Kengyilia melanthera(Keng)J．L. Yang，Yen et

Abstract: Kengyilia melanthera (Keng)J. L. Yang, Yen et Baum and K. kokonorica (Keng)J. L. Yang, Yen et Baum are two hexaploid perennial grasses of the tribe Triticeae native in west China. K. melanthera and K. kokonorica were hybridized with Roegneria kamoji Ohwi(2n=42,StStHHYY) and K. hirsuta (Keng)J. L. Yang, Yen et Baum (2n = 42, PPStStYY) respectively. Chromosome pairing behaviour at metaphase I in the par- ents and hybrids was studied. Meiotic configurations were 18.20 Ⅰ + 11.74 Ⅱ + 0.09 Ⅲ + 0.01V for R. kamoji×K. melanthera, 1.06Ⅰ + 20.47 Ⅱ for K. hirsuta×K. melanthera, 19.36Ⅰ + 11.26 Ⅱ + 0.04Ⅲ for R. kamoji×K. kokonorica, and2.46Ⅰ + 19.44Ⅱ + 0.14 Ⅲ + 0.06 Ⅳ for K. hirsuta×K. kokonorica. Considering chromo- some pairing in the hybrids, as well as morphological characters, K. melanthera and K. kokonorica should be grouped in Kengyilia Yen et J. L. Yang instead of being keeped inRoegneria sect. Paragropyron Keng , or in Elymus L. or Elytrigia Desv.

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张新全, 杨俊良, 颜济, 郑有良, 伍碧华. 青海仲彬草和黑药仲彬草的生物系统学研究[J]. 植物分类学报, 1999, 37(2): 117-124.

ZHANG Xin-Quan, YANG Jun-Liang, YEN Chi, ZHENG You-Liang, WU Bi-Hua. Biosystematic studies of Kengyilia melanthera and K. kokonorica (Poaceae: Triticeae)[J]. Acta Phytotaxonomica Sinica, 1999, 37(2): 117-124.

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