J Integr Plant Biol. ›› 1999, Vol. 41 ›› Issue (10): -.

• Research Articles •    

Transmission of 6VS Chromosome in Wheat- Haynaldia villosa Translocation Lines and Genetic Stability of Pm21 Carried by 6VS

LIU Jin-Yuan, TAO Wen-Jing, LIU Da-Jun, CHEN Pei-Du, LI Wan-Long, XIANG Qi-Jun and DUAN Xia-Yu   

Abstract: Fa plants from Yang94-138 ×92R149 were analyzed using species-specific probe pHv62 for Haynaldia villosa (L.) Schur and RFLP probe Psrll3 located on the short ann of homoeologous group six for wheat ( Triticum aestivum L. ). The results showed that the transmission rate of 6VS in the F2 was 69.5 %, which was close to the expected value of 75%. 147 F2 plants from the above Fl plant were tested for their resistance in seedling stage to 6 pathogenic strains of powdery mildew. It was observed that Pm21 genes on 6VS inherited dominantly and expressed well when transferred to wheat-"Yangmai 158" genotype.

Key words: Haynaldia villosa, Pm21 gene, Wheat, Transmission rate, RFLP probe

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