Location: Hard Winter Wheat Genetics ResearchTitle: Registration of OK05312, a high-yielding hard winter wheat donor of Cmc4 for wheat curl mite resistance
|CARVER, BRETT - OKLAHOMA STATE UNIVERSITY|
|SMITH, C MICHAEL - KANSAS STATE UNIVERSITY|
|CHUANG, WEN-PO - KANSAS STATE UNIVERSITY|
|HUNGER, ROBERT - OKLAHOMA STATE UNIVERSITY|
|EDWARDS, JEFFREY - OKLAHOMA STATE UNIVERSITY|
|YAN, LIULING - OKLAHOMA STATE UNIVERSITY|
|GILL, BIKRAM - KANSAS STATE UNIVERSITY|
|Bowden, Robert - Bob|
Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/20/2015
Publication Date: 12/3/2015
Publication URL: http://handle.nal.usda.gov/10113/5451333
Citation: Carver, B., Smith, C., Chuang, W., Hunger, R.M., Edwards, J.T., Yan, L., Brown Guedira, G.L., Gill, B.S., Bai, G., Bowden, R.L. 2015. Registration of OK05312, a high-yielding hard winter wheat donor of Cmc4 for wheat curl mite resistance. Journal of Plant Registrations. 10:75-79 doi:10.3198/jpr2015.04.0026crg.
Interpretive Summary: Wheat streak mosaic is a devastating viral disease of wheat in the High Plains region of the US and many locations around the world. The virus is carried by the wheat curl mite. OK05312 is a new germplasm line that carries the gene Cmc4, which provides resistance to the wheat curl mite. Cmc4 should reduce populations of wheat curl mites and thus lessen transmission of the virus from plant to plant. OK05312 has high grain yield potential and acceptable milling and baking quality. It also has resistance to wheat soilborne mosaic and wheat spindle streak mosaic complex. The resistance to wheat curl mite in OK05312 can be combined with other sources of resistance to wheat streak mosaic and incorporated into new cultivars of wheat.
Technical Abstract: Wheat streak mosaic (WSM) is a devastating disease in the High Plains region that is advancing eastward toward lower elevations. Its control is best achieved by combining known disease resistance genes with resistance to the insect vector. A hard red winter (HRW) wheat (Triticum aestivum L.) germplasm line, OK05312 (Reg. No. GP-995, PI 670019), was co-developed by Oklahoma State University, Kansas State University, the Wheat Genetics Resource Center, and USDA-ARS and released in 2014. It possesses gene Cmc4 and confers strong resistance to the wheat curl mite (WCM, Aceria tosichella Keifer). OK05312 is an F4–derived line from the double cross TX93V5919/KS96WGRC40//OK94P549/KS96WGRC34 and is expected to provide an improved source of Cmc4 over KS96WGRC40. OK94P549 was the parent line from which HRW cultivar Endurance was selected. OK05312 was released for its high grain yield potential in a late-maturing background with resistance to the with resistance to the wheat soil-borne mosaic–wheat spindle streak mosaic complex and acceptable milling and baking quality. Hence, OK05312 provides wheat breeders an alternative source of WCM resistance and a critical component to mitigate yield losses to WSM and other WCM-transmitted viruses.