Knowledge Center Catalog

Bdv1: A gene for tolerance to barley yellow dwarf virus in bread wheat

By: Contributor(s): Material type: ArticleArticleLanguage: En Publication details: 1993ISSN:
  • 1435-0653 (Revista en electrónico)
Subject(s): In: Crop Science v. 33, no. 2, p. 231-234649209Summary: Barley yellow dwarf luteovirus (BYDV) is the most economically important and widespread virus disease of small grain cereals in the world. The North American bread wheat (Triticum aestivum) cv. Anza and several other CIMMYT wheats have shown tolerance of BYDV. Anza and nine other tolerant wheats were intercrossed and crossed with the susceptible wheats Bobwhite and/or Bagula. Parents and the F1 and F2 generations were tested during 1990 in the field near Toluca (Mexico) with the MAV-Mex serotype of BYDV. Some 72 individual F2-derived F3 lines from each cross were classified in the field during 1991, together with the parents and F1s, with the same serotype. The intercrosses among tolerant parents failed to segregate, and the observed distribution of F3 lines in the crosses of tolerant and susceptible wheats was in accordance with a monogenic segregation ratio. It is concluded that tolerance in these wheats is due to a common, partially effective and partially dominant gene, designated Bdv1. Bdv1 could have originated in the Brazilian cultivar Frontana and should be considered a durable source, because of its deployment in numerous CIMMYT wheats worldwide
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Item type Current library Collection Call number Copy number Status Date due Barcode Item holds
Article CIMMYT Knowledge Center: John Woolston Library CIMMYT Staff Publications Collection CIS-2611 (Browse shelf(Opens below)) 1 Available 649209
Total holds: 0

Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X

Barley yellow dwarf luteovirus (BYDV) is the most economically important and widespread virus disease of small grain cereals in the world. The North American bread wheat (Triticum aestivum) cv. Anza and several other CIMMYT wheats have shown tolerance of BYDV. Anza and nine other tolerant wheats were intercrossed and crossed with the susceptible wheats Bobwhite and/or Bagula. Parents and the F1 and F2 generations were tested during 1990 in the field near Toluca (Mexico) with the MAV-Mex serotype of BYDV. Some 72 individual F2-derived F3 lines from each cross were classified in the field during 1991, together with the parents and F1s, with the same serotype. The intercrosses among tolerant parents failed to segregate, and the observed distribution of F3 lines in the crosses of tolerant and susceptible wheats was in accordance with a monogenic segregation ratio. It is concluded that tolerance in these wheats is due to a common, partially effective and partially dominant gene, designated Bdv1. Bdv1 could have originated in the Brazilian cultivar Frontana and should be considered a durable source, because of its deployment in numerous CIMMYT wheats worldwide

Global Wheat Program

English

R93ANALY|Crop Science Society of America (CSSA)|WP|3

INT0610

CIMMYT Staff Publications Collection


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