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GrainGenes Reference Report: TAG-81-381

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Reference	TAG-81-381
Title	Identification of alien chromatin specifying resistance to wheat streak mosaic and greenbug in wheat germplasm by C-banding and in situ hybridization.
Journal	Theoretical and Applied Genetics
Year	1991
Volume	81
Pages	381-389
Author	Friebe B Mukai Y Dhaliwal HS Martin TJ Gill BS
Type	Article
Language	English
Abstract	The chromosome constitutions of eight wheat streak mosaic virus (WSMV)-resistant lines, three of which are also greenbug resistant, derived from wheat/Agropyron intermedium/Aegilops speltoides crosses were analyzed by C- banding and in situ hybridization. All lines could be traced back to CI15092 in which chromosome 4A is substituted for by an Ag. intermedium chromosome designated 4Ai-2, and the derived lines carry either 4Ai-2 or a part of it. Two (CI17881, CI17886) were 4Ai-2 addition lines. C117882 and CI17885 were 4Ai-2(4D) substitution lines. CI17883 was a translocation substitution line with a pair of 6AL.4Ai-2S and a pair of 6AS.4Ai-2L chromosomes substituting for chromosome pairs 4D and 6A of wheat. CI17884 carried a 4DL.4Ai-2S translocation which substituted for chromosome 4D. CI17766 carried a 4AL.4Ai-2S translocation substituting for chromosome 4A. The results show that the 4Ai-2 chromosome is related to homoeologous group 4 and that the resistance gene(s) against WSMV is located on the short arm of 4Ai-2. In addition, CI17882, CI17884, and CI17885 contained Ae. speltoides chromosome 7S substituting for chromosome 7A of wheat. The greenbug resistance gene Gb5 was located on chromosome 7S.
Gene	Gb5 (Triticum) Wsm1 (Triticum)
Keyword	[ Hide all but 1 of 18 ] addition lines Aegilops speltoides alien addition lines alien translocation lines C bands chromatin chromosome translocation. chromosomes DNA hybridization Elymus hispidus gene location genetic resistance pest resistance plant breeding Schizaphis graminum translocation lines Triticum aestivum wheat streak mosaic virus
Agricola Code	IND91033577
Gene Catalogue Number	266
Image	C-bands and GISH for Wsm1
Cited in	McIntosh RA et al. (1995) Catalogue of gene symbols for wheat. Proceedings of the 8th International Wheat Genetics Symposium 1333-1500.

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