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Registration of KS96WGRC34 Leaf Rust‐Resistant Hard Red Winter Wheat Germplasms
Author(s) -
Cox T. S.,
Sears R. G.,
Gill B. S.,
Hussien T.,
Bowden R. L.,
BrownGuedira G. L.
Publication year - 1999
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1999.0011183x003900020066x
Subject(s) - germplasm , biology , rust (programming language) , crop , horticulture , winter wheat , agronomy , computer science , programming language
KS96WGRC34 (Reg. no. GP-553, Pl 604219) is a leaf rustresistant hard red winter wheat (Triticum aestivum L.) germplasm developed cooperatively by the USDA-ARS, the Kansas AgricuItural Experiment Station, and the Wheat Genetics Resource Center. It was released as a germplasm in August 1996. Seedlings of KS96WGRC34 exhibited a low infection type (;C to ;2C) when inoculated with seven races of leaf rust (Puccinia recondita Roberge ex Desmaz.), KDB-10, MGM-10, MCD-10, TBG-10, MBR-10, PNM-10,18, PNM-10, and MCR-10 (1,2). Seedlings of KS96WGRC34 exhibited a 3infection type when inoculated with race TFG-10 (2). Adultplants displayed low infection types under moderate to heavy leaf rust infections at Manhattan and Hutchinson, KS, in the years 1992to 1996, but had a high infection type when tested under heavy inoculum levels atBeeville, TX, in 1995 (2). Seedlings and adult plants of the wheat parents 'TAM 107' and 'Wrangler' exhibited high infection types in all cztses. KS96WGRC34 is an Fr-derived line with the pedigree TAM n7nA74g/lWrangler. TA749 is a leafrust-resistant accession of Triticum monococcum L. subsp. aegilopoifus (Link) Thell (syn. wbsp. boeoticura). Leaf rust resistance in KS96WGRC34 is conditioned by a single, dominant gene from TA 749. The gene is located on chromosome 5A' and segregates independently of all other known genes tansfened from T. monococcam to hexaploid wheat (3). KS96WGRC34 is similar to Wrangler in height, days to heading, and overall phenotype but has the TIAL.IRS hanslocation carried by TAM 107. Small quantities (2 g) of seed of KS96WGRC34 are available upon written request. Appropriate recognition of source should be given when this germplasm confibutes to research or development of a new breeding line or cultivar. Seed stocks are maintained by the Wheat Genetics Resource Center, Dep. of Plant Pathologr, Throckmorton Plant Sciences Center, Kansas State University, Manhattan, KS 66506-5502.