GENES FOR RACE-SPECIFIC RESISTANCE TO YELLOW RUST (PUCCINIA-STRIIFORMIS) IN INDIAN WHEAT CULTIVARS

被引：12

作者：

SINGH, H ^{[1
]}

JOHNSON, R ^{[1
]}

SETH, D ^{[1
]}

机构：

[1] AFRC,INST PLANT SCI RES,CAMBRIDGE LAB,NORWICH NR4 7UJ,ENGLAND

来源：

PLANT PATHOLOGY | 1990年 / 39卷 / 03期

关键词：

D O I：

10.1111/j.1365-3059.1990.tb02518.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Seedlings of Indian wheat cultivars (Kalyansona, Sonalika, WL711 and eight others released commercially) were tested with 13 British and four alien races of Puccinia striiformis. The data indicated the probable presence of the resistance gene Yr2 in the three cultivars named above and in six of the others. Reactions of the remaining two cultivars, PWB12 and WL2265, were consistent with the presence of the gene 177. The presence of Yr2 in Kalyansona, Sonalika and WL711 was supported by evidence from crosses between them and with Heines VII, which is known to carry Yr2. In crosses of Sonalika with a susceptible cultivar, Kharchia Local and also with WL711, tests of F1, F2 and F3 generations indicated that, in addition to Yr2, Sonalika possesses at least two other genes. Both these genes were difficult to detect but the F3 data supported the hypothesis that there is a single partially recessive gene giving resistance to alien race 6E16 and a different, possibly complementary, gene system effective against another alien race, 39E134. The presence of resistance in addition to Yr2 was also detected in WL711 and HD2329. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：424 / 433

页数：10

共 11 条

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