J Syst Evol ›› 1993, Vol. 31 ›› Issue (6): 560-564.

• Research Articles • Previous Articles     Next Articles

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

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

  • Online:1993-11-18 Published:1993-11-18

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 havethe S, Y, P genomes of genus Kengyilia.

Key words: Roegneria, Kengyilia, Karyotype analysis

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[10] Cai Lian-bing. A Taxonomical Study on the Genus Roegneria C. Koch from China . J Syst Evol, 1997, 35(2): 148-177.
[11] Cai Lian-bing. New Taxa of the Genus (Poaceae) from West China . J Syst Evol, 1996, 34(3): 327-335.
[12] Sun Gen-lou, Yang Jun-liang, Yen Chi. A Biosystematic Study on Hybrids Between Psathyrostachys huashanica and Two Species of Roegneria . J Syst Evol, 1993, 31(5): 393-398.
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