Karyotypes of Eleven Species of Triticeae in Northeast China

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Karyotypes of Eleven Species of Triticeae in Northeast China

Sun Yi-Kai, Zhao Yu-Tang, Dong Yu-Chen, Zhou Rong-Hua, Xu Shu-Jun

Received:1900-01-01 Revised:1900-01-01 Online:1992-08-10 Published:1992-08-10

Abstract

Abstract:

In this paper the karyotypes of eleven species of Triticeae from

Northeast China are reported. The karyotype formulae are as follows: Agropyron

cristatum, 2n=4x=28=20m+8sm; Elytrigia repens, 2n=6x=42=34m(2SAT)

+ 8sm; Hordeum brevisubulatum, 2n = 4x = 28 = 20m + 8sm( 4SAT ); Roegneria

nakaii, 2n = 4x = 28 = 20m + 8sm( 4SAT ); R. turczaninovii var. macrathera,

2n = 4x = 28 = 20m(2SAT ) + 8sm(2SAT ); Elymus sibiricus, 2n = 4x = 28 = 20m + 8sm

( 4SAT); E. dahuricus, 2n=6x=42=32m+10sm( 6SAT); E. excelsus,

2n=6x=42=32m+10sm( 6SAT); Leymus chinensis, 2n=4x=28=20m(4SAT)

+ 8sm; Roegneria ciliaris, 2n = 4x = 28 = 22m( 2SAT ) + 6sm( 2SAT ); R. kamoji,

2n= 6x = 42= 30m+ 12sm(4SAT). The karyotypes of the first five species are re-

ported for the first time.

Key words: Northeast China, Triticeae, karyotype

Sun Yi-Kai, Zhao Yu-Tang, Dong Yu-Chen, Zhou Rong-Hua, Xu Shu-Jun. Karyotypes of Eleven Species of Triticeae in Northeast China[J]. .

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Karyotypes of Eleven Species of Triticeae in Northeast China

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