지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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This study was conducted to analyze the variation of yield and grain quality-related traits after inoculation of two Korean bacterial blight races, K1 and K3a in early maturing japonica rice varieties. Odaebyeo that don’t have any resistance gene to bacterial blight showed susceptible reaction to K1 and K3a. Unkwang, carrying Xa3, showed resistance reaction to K1and susceptible reaction to K3a. HR28021-AC16 was indentified to have the Xa21 gene, which confers resistance to K2, K3,and K3a, while shows susceptible reaction to K1, predominant race in Korea. According to the degree of virulence and the second infection, K3a was more virulent than K1. In yield trial test after inoculation of K1 and K3a, ratio of ripened grain, brown/rough rice ratio, brown rice yield, and milling recovery of head rice were positively correlated with each other and showed negative correlation with protein content of brown and milled rice. Dead kernel of brown rice showed negative correlation with ratio of ripened grain and milling recovery of head rice. In the principal component analysis, ratio of ripened grain, brown/rough rice ratio, brown rice yield and milling recovery of head rice showed opposite direction with dead kernel of brown rice and protein content of brown and milled rice by first principal component. HR28021-AC16, carrying Xa21, showed the susceptible reaction to K1 such as the reduction of ratio of ripened grain, brown/rough rice ratio, brown rice yield, and milling recovery of head rice and the increase of opaque kernel of brown rice, while showed the resistant reaction to K3a. Although Xa21 can improve the resistance to K3a, it would be desirable to breed pyramided varieties with Xa21 and other genes, which can complement the resistance to K1.
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참고문헌 (23)
참고문헌 신청
Huang N / 1997 / Pyramiding of bacterial blight resistance genes in rice: marker-assisted selection using RFLP and PCR / TAG Theoretical and Applied Genetics 95 : 313 ~ 320
Jeung JU / 2006 / Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes / Phytopathology 96 : 867 ~
Jung-Pil Suh / 2009 / Expression levels of three bacterial blight resistance genes against K3a race of Korea by molecular and phenotype analysis in japonica rice (O. sativa
Kauffman HE / 1973 / An improved technique for evaluating resistance of rice varieties to Xanthomonas oryzae / Plant Disease Reporter 57 : 537 ~ 541
Khush GS / 1990 / A New Gene for Resistance to Bacterial Blight from O. longistaminata
Jeung JU / 2006 / Dynamics of Xanthomonas oryzae pv. oryzae populations in Korea and their relationship to known bacterial blight resistance genes / Phytopathology 96 : 867 ~
Jung-Pil Suh / 2009 / Expression levels of three bacterial blight resistance genes against K3a race of Korea by molecular and phenotype analysis in japonica rice (O. sativa
Kauffman HE / 1973 / An improved technique for evaluating resistance of rice varieties to Xanthomonas oryzae / Plant Disease Reporter 57 : 537 ~ 541
Khush GS / 1990 / A New Gene for Resistance to Bacterial Blight from O. longistaminata
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