Molecular mapping of adult plant stripe rust resistance in wheat and identification of pyramided QTL genotypes

被引：93

作者：

Bariana, H. S. ^{[1
]}

Bansal, U. K. ^{[1
]}

Schmidt, A. ^{[2
]}

Lehmensiek, A. ^{[3
]}

Kaur, J. ^{[1
]}

Miah, H. ^{[1
]}

Howes, N. ^{[1
]}

McIntyre, C. L. ^{[2
]}

机构：

[1] Univ Sydney, Plant Breeding Inst Cobbitty, Fac Agr Food & Nat Resources, Narellan, NSW 2567, Australia

[2] CSIRO, Div Plant Ind, St Lucia, Qld 4067, Australia

[3] Univ So Queensland, Toowoomba, Qld 4350, Australia

来源：

EUPHYTICA | 2010年 / 176卷 / 02期

关键词：

Wheat; Stripe rust; Puccinia striiformis f. sp tritici; Adult plant resistance; Durable resistance; Molecular mapping; QUANTITATIVE TRAIT LOCI; MARKER-ASSISTED SELECTION; YELLOW RUST; BREAD WHEAT; PUCCINIA-STRIIFORMIS; DISEASE RESISTANCE; DURABLE RESISTANCE; GENETIC-ANALYSIS; CULTIVAR; MAP;

D O I：

10.1007/s10681-010-0240-x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The Puccinia striiformis f. sp. tritici (Pst) pathotype, 134 E16A+, detected in 2002 in Australia, produced relatively lower and higher adult plant stripe rust responses, respectively, on cultivars Kukri and Janz in comparison to the pre-2002 Pst pathotype 110 E143A+. Molecular mapping of adult plant stripe rust response variation among 180 Kukri/Janz-derived doubled haploid lines over 4 years, two each with Pst pathotypes 110 E143A+ and 134 E16A+, was performed. QYr.sun-7B and QYr.sun-7D were consistently contributed by Kukri and Janz, respectively. QYr.sun-7D corresponded to the genomic location of Yr18 and QYr.sun-7B remains to be formally named. QYr.sun-1B, QYr.sun-5B, and QYr.sun-6B were detected during more than one season irrespective of the Pst pathotypes used, whereas QYr.sun-3B was identified only during the 2003 crop season. QYr.sun-1A contributed by Janz, and QYr.sun-2A from Kukri, were detected only against Pst pathotypes 110 E143A+ and 134 E16A+, respectively. The DH lines showing better resistance than the either parent carried combinations of 4 to 6 QTL. These lines are currently being used as stripe rust resistance donors in wheat breeding programs.

引用

页码：251 / 260

页数：10

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