Enhancement of Panicle Blast Resistance in Korean Rice Cultivar ‘Saeilmi’ by Marker Assisted Backcross Breeding

• 발행기관: 한국육종학회
• 저자명: Jong-Hee Lee Ji-Yoon Lee Young-Nam Yoon Sang-Yeol Kim Yeon-Jae Hur Un-Sang Yeo Young-Bo Sohn You-Chun Song Dong-Soo Park Min-Hee Nam Jun-Hyeon Cho
• 간행물 정보: 『Plant breeding and biotechnology』Vol.3 No.1, 1~10쪽, 전체 10쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2015.03.01

영문 초록

Panicle blast is a serious disease in rice production in Korea. To develop rice cultivar resistant to panicle blast, the Pb1 gene, originating in the indica cultivar ‘Modan’, was incorporated into an elite japonica cultivar ‘Ilmi’, which is highly susceptible to panicle blast, by marker assisted backcross breeding. ‘Hwayeong’ was selected as the donor parent for the Pb1 gene based on 10 years of panicle blast data. The inheritance of panicle blast resistance in ‘Hwayeong’ is controlled by a single dominant gene. This panicle blast resistance gene, Pb1, from ‘Hwayeong’ was incorporated into the susceptible variety, ‘Ilmi’, by marker assisted backcross approach using DNA marker RM206. As a result, ‘Saeilmi’ containing the Pb1 gene showed resistance to panicle blast. The agronomical and grain quality traits of ‘Saeilmi’ were similar to those of the recurrent parent ‘Ilmi’. Molecular background analysis revealed that ‘Saeilmi’ had the least donor segment introgression in the locus of the Pb1 gene on chromosome 11.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSIONS

ACKNOWLEDGMENTS

REFERENCES

키워드

Rice Panicle blast Marker assisted selection Saeilmi