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United States Department of Agriculture

Agricultural Research Service

Title: Registration of Five Wheat Isogenic Lines for Leaf Rust and Stripe Rust Resistance Genes

Authors
item Chicaiza, O - UNIV OF CA AT DAVIS
item Khan, I - UNIV OF CA AT DAVIS
item Zhang, X - UNIV OF CA AT DAVIS
item Brevis, J - UNIV OF CA AT DAVIS
item Jackson, L - UNIV OF CA AT DAVIS
item Chen, Xianming
item Dubcovsky, J - UNIV OF CA AT DAVIS

Submitted to: Crop Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: May 4, 2005
Publication Date: January 1, 2006
Citation: Chicaiza, O., Khan, I.A., Zhang, X., Brevis, J.C., Jackson, L., Chen, X., Dubcovsky, J. 2006. Registration of five wheat isogenic lines for leaf rust and stripe rust resistance genes. Crop Sci. 46:485-487.

Interpretive Summary: We reported here the release of four germplasm lines of hard red spring (HRS) wheat ‘Yecora Rojo Yr36-GpcB1’ (PI 638740), ‘Yecora Rojo Lr47’ (PI 638738), ‘KERN Lr47’ (PI 638739), and ‘Anza Lr37/Yr17/Sr38’ (PI 638742)] and one durum wheat ‘UC1113 Yr36-Gpc-B1’ (PI 638741)], isogenic for leaf rust resistance gene Lr47, stripe rust resistance gene Yr36, and the Lr37/Yr17/Sr38 leaf, stripe, and stem rust resistance gene complex. All genes were used to select heterozygous plants for the targeted genes. After the sixth backcross plants were self-pollinated and isogenic lines are expected to be more than 99% identical to their recurrent parents. The germplasm lines should be useful in developing wheat cultivars with resistance to stripe rust, leaf rust, stem rust, and high grain protein content.

Technical Abstract: We reported here the release of four germplasm lines of hard red spring (HRS) wheat (Triticum aestivum L.) [Yecora Rojo Yr36-GpcB1 (Reg. no. GP-793, PI 638740), Yecora Rojo Lr47 (Reg. No. GP-791, PI 638738), cERN Lr47 (Reg. No. GP-792, PI 638739), and Anza Lr37/Yr17/Sr38 (reg. No. GP-795, PI 638742)] and one durum wheat (T. turgidum L.) UC1113 Yr36-Gpc-B1 (reg. no. GP-794, PI 638741)], isogenic for leaf rust (Puccinia triticina Eriks.) resistance gene Lr47, stripe rust (P. striiformis West. f. sp. tritici)resistance gene Yr36, and the Lr37/Yr17/Sr38 leaf, stripe, and stem rust (P. graminis Pers.:Pers. F. sp. tritici Eriks. & E. Henn.) resistance gene complex. All genes were used to select heterozygous plants for the targeted genes. After the sixth backcross plants were self-pollinated and isogenic lines are expected to be more than 99% identical to their recurrent parents.

Last Modified: 7/24/2014
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