Identification and Application of One New Rice Blast Broad-spectrum Resistance Allele pi21t

doi:10.7668/hbnxb.2014.06.003

Abstract

Abstract: In order to discover,identify and apply the new broad-spectrum resistant genes,this research had identified one new rice blast broad-spectrum resistant allele.In this study,according to the sequence of rice blast broad-spectrum resistance recessive allele pi21,molecular marker Pi21-1 was designed and amplified using wide compatibility rice variety 02428.Sequencing analysis showed new mutation type,and rice blast vaccination identification resulted in immunity.Thus,a new rice blast broad-spectrum resistance allele pi21t had been identified.These results provided new resistant resources for rice blast broad-spectrum resistant breeding.Meanwhile,genotype of target variety could be determined rapidly using newly designed marker.All these accelerate the process of rice blast broad-spectrum resistant breeding.

Key words: Rice, Blast disease, Broad-spectrum resistance, Allelotype

CLC Number:

Q78
S435.11

ZHU Jin-yan, WANG Jun, FAN Fang-jun, LI Wen-qi, WANG Fang-quan, ZHONG Wei-gong, YANG Jie. Identification and Application of One New Rice Blast Broad-spectrum Resistance Allele pi21t[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(6): 11-15. doi: 10.7668/hbnxb.2014.06.003.

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