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GrainGenes Reference Report: TAG-104-315

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Reference	TAG-104-315
Title	Characterisation of Triticum vavilovii-derived stripe rust resistance using genetic, cytogenetic and molecular analyses and its marker-assisted selection
Journal	Theoretical and Applied Genetics
Year	2002
Volume	104
Pages	315-320
Author	Bariana HS [ Show all 9 ]
Abstract	Summary: Stripe rust resistance was identified in Triticum vavilovii (T. vavilovii Aus22498)-derived Russian wheat aphid (RWA)-resistant germplasm. Inheritance studies indicated monogenic control of resistance. The resistance gene was tentatively designated as Yrvav and was located on chromosome 1B by monosomic analysis. A close association (1.5+/-0.9% recombination) of Yrvav with a T. vavilovii-derived gliadin allele (Gli-B1vav) placed it in chromosome arm 1BS. Yrvav was allelic with Yr10. Tests with Yr10 avirulent and virulent pathotypes showed that Yrvav and Yr10 possess identical pathogenic specificity. Yrvav and Yr10 showed close genetic associations with alternate alleles at the Xpsp3000 (microsatellite marker), Gli-B1 and Rg1 loci. Based on these observations Yrvav was named as Yr10vav. The close association between Xpsp3000 and Gli-B1 was also confirmed. The Yr10vav-linked Xpsp3000 allele (285 bp) was not present in 65 Australian cultivars, whereas seven Australian wheats lacking Yr10 carried the same Xpsp3000 allele (260 bp) as Yr10 carrying wheat cultivar Moro. Xpsp3000 and/or Gli-B1 could be used in marker-assisted selection for pyramiding Yr10vav or Yr10 with other stripe rust resistance genes. Yr10vav was inherited independently of the T. vavilovii-derived RWA resistance
External Databases	http://link.springer-ny.com/link/service/journals/00122/bibs/2104002/21040315.htm
Keyword	[ Hide all but 1 of 44 ] 1b 20 allele alternate aphid associations australian wheat chromosome chromosome arm chromosome location cultivar dicoccoides gene germplasm gliadin glume colour inheritance loci marker marker-assisted selection microsatellite microsatellite marker monosomic analysis pathotype pyramiding recombination resistance resistance gene russian wheat aphid rust rust resistance rust resistance gene rwa selection specificity stripe rust stripe rust resistance gene triticum vavilovii wheat wheat aphid resistance wheat cultivar wild emmer wheat yellow rust

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