Genetic Analysis of Tea Gray Blight Resistance in Tea Plants

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
36-03-04.pdf279.62 KB

Tea gray blight caused by Pestalotiopsis longiseta SPEGAZZINI is a severe disease in tea fields in Japan. The resistance of tea plants to the disease was found to be controlled by 2 independent dominant resistance genes Pl1 and Pl2, based on parent-offspring genetic analysis. There were 9 genotypes for resistance to P. longiseta in tea plants. Six genotypes Pl1Pl1Pl2Pl2, Pl1Pl1Pl2pl2, Pl1Pl1pl2pl2, Pl1pl1Pl2Pl2, Pl1pl1Pl2pl2, Pl1pl1pl2pl2were resistant, 2 genotypes pl1pl1Pl2Pl2, pl1pl1Pl2pl2 were moderately resistant and one genotype pl1pl1pl2pl2 was susceptible. Since the cultivars harboring the Pl1 gene with homozygosity always produced resistant plants to the disease in any cross combinations, they could become very important materials for the breeding of cultivars resistant to the disease.

作成者 TAKEDA Yoshiyuki

epistatic effect



公開者 Japan International Research Center for Agricultural Sciences
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 143
終了ページ 150
DOI 10.6090/jarq.36.143
権利 Japan International Research Center for Agricultural Sciences
言語 eng