October
2006
, Volume
90
, Number
10
Pages
1,302
-
1,312
Authors
Z. F.
Li
and
X. C.
Xia
,
Institute of Crop Science/National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, Zhongguancun South Street 12, 100081, Beijing, China
;
X. C.
Zhou
,
Gansu Winter Wheat Research Institute, Duan Jia Tan 418, 730020, Lanzhou, China
;
Y. C.
Niu
,
Plant Protection Institute, Chinese Academy of Agricultural Science, Yuanmingyuan West Road 2, 100094, Beijing, China
;
Z. H.
He
,
Institute of Crop Science/National Wheat Improvement Center, Chinese Academy of Agricultural Sciences, and International Maize and Wheat Improvement Center (CIMMYT) China Office, C/O CAAS, Zhongguancun South Street 12, 100081, Beijing, China
;
Y.
Zhang
and
G. Q.
Li
,
Institute of Crop Science/National Wheat Improvement Center, Chinese Academy of Agricultural Sciences
;
A. M.
Wan
,
Plant Protection Institute, Chinese Academy of Agricultural Science
;
D. S.
Wang
and
X. M.
Chen
,
Institute of Crop Science/National Wheat Improvement Center, Chinese Academy of Agricultural Sciences
;
Q. L.
Lu
,
Gansu Winter Wheat Research Institute
; and
R. P.
Singh
,
CIMMYT, Apdo. Postal 6-641, 06600, Mexico D.F., Mexico
Affiliations
Go to article:
RelatedArticle
Accepted for publication 1 April 2006.
Abstract
ABSTRACT
Identification of seedling and slow stripe rust resistance genes is important for gene pyramiding, gene deployment, and developing slow-rusting wheat cultivars to control the disease. A total of 98 Chinese lines were inoculated with 26 pathotypes of Puccinia striiformis f. sp. tritici for postulation of stripe rust resistance genes effective at the seedling stage. A total of 135 wheat lines were planted at two locations to characterize their slow rusting responses to stripe rust in the 2003-2004 and 2004-2005 cropping seasons. Genes Yr2, Yr3a, Yr4a, Yr6, Yr7, Yr9, Yr26, Yr27, and YrSD, either singly or in combinations, were postulated in 72 lines, whereas known resistance genes were not identified in the other 26 accessions. The resistance genes Yr9 and Yr26 were found in 42 and 19 accessions, respectively. Yr3a and Yr4a were detected in two lines, and four lines may contain Yr6. Three lines were postulated to possess YrSD, one carried Yr27, and one may possess Yr7. Thirty-three lines showed slow stripe rusting resistance at two locations in both seasons.
JnArticleKeywords
Additional keywords:
bread wheat,
gene-for-gene specificity,
yellow rust,
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ArticleCopyright
© 2006 The American Phytopathological Society
