Cytogenetic Identification and Characteristics of Triticum aestivum-Elymus rectisetus Derivatives

doi:10.7668/hbnxb.2008.02.017

Abstract

Abstract: Cytogenatic technique was used to identify two Triticum aestivum一Elymus rectisetus (Nees in Lehm)A. Love et Connor derivatives.Additionally, their cytogenetic stability，resistance to powdery mildew, high-molecular-weight sub-unit of glutenin (HMW-GS),and morphologic were studied. Chromosome numbers in the root tips and chromosome configu-ration at PMC MI of two derlvatives were 2n= 44 and 2n=22 II. Chromosome configurations at PMC MI of hybrid F_l be-tween two derivatives and Fukuhokomugi were 2n=20 Ⅱ+3 I.The results showed that two derivatives were Triticum aes-tivum一Elymus rectisetus alien substitution addition lines. It was found that E.rectisetus accession 1050was highly resis-tant to powdery mildew，and two alien substitution addition lines and Fukuhokomugi were high1y susceptible.Two lines was the same HLVIW-GS as Fukuhokomugi.

Key words: Elymus rectisetus, Cytogenctics, Alien substitution addition lines, HMW-GS

CLC Number:

WANG Chang-you, WANG Qiu-ying, JI Wan-quan, XUE Xiu-zhuang, LIU Xue-li. Cytogenetic Identification and Characteristics of Triticum aestivum-Elymus rectisetus Derivatives[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(2): 77-79. doi: 10.7668/hbnxb.2008.02.017.

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