‘TAM 112’ Wheat, Resistant to Greenbug and Wheat Curl Mite and Adapted to the Dryland Production System in the Southern High Plains

Abstract

‘TAM 112’ (Reg. No. CV‐1101, PI 643143), a hard red winter wheat (Triticum aestivum L.) cultivar with experimental designation TX98V9628, was developed and released by Texas A&M AgriLife Research in 2005. TAM 112 is an F4–derived line from the cross U1254‐7‐9‐2‐1/TXGH10440 made at Vernon, TX, in 1992. U1254‐7‐9‐2 is a USDA–ARS germplasm line from the Plant Science and Entomology Research unit, Manhattan, KS, and TXGH10440 is a sibling selection of the cultivar TAM 110. TAM 112 is an awned, medium‐early maturing, semidwarf wheat with red glumes. It was released primarily for its excellent grain yield potential particularly in dryland environments of the southern Great Plains; resistance to stem rust (caused by Puccinia graminis Pers.:Pers. f. sp. tritici Eriks. & E. Henn.), powdery mildew [caused by Blumeria graminis (DC.) E.O. Speer f. sp. tritici Em. Marchal], and greenbug [Schizaphis graminum (Rondani)]; and good milling and bread‐baking characteristics. Compared with existing hard red winter wheat cultivars at the time of release, TAM 112 is most similar to TAM 110 with respect to area of adaptation and disease and insect resistance, but it has significantly higher yield and better bread‐baking characteristics than TAM 110. Licensed to Watley Seed Company for marketing, TAM 112 is currently one of the most popular hard red winter wheat cultivars adapted to the dryland production system in the Texas High Plains and similar areas in the southern Great Plains.

Physiology and transcriptomics of water-deficit stress responses in wheat cultivars TAM 111 and TAM 112

“…The hard red winter wheat cultivars TAM 111 and TAM 112 (Lazar et al, 2004;Rudd et al, 2014), are widely cultivated on the SGP and continue to gain popularity among producers. The germplasm resources of these cultivars are used by breeding programs in the US and around the world to improve drought tolerance in arid and semiarid production regions.…”

Registration of OK05312, a High‐Yielding Hard Winter Wheat Donor of Cmc4 for Wheat Curl Mite Resistance

“…Leaf symptom production on OK05312 was similarly suppressed. No significant difference was found between OK05312 and its putative donor source of curl mite resistance, KS96WGRC40, or between OK05312 and TAM 112, a cultivar deployed in the Texas High Plains for its curl mite resistance (Price et al, 2014; Rudd et al, 2014) OK05312 also showed a moderate level of resistance to the mite population collected in Nebraska, although a similar level of resistance was found in Endurance (data not shown). Molecular marker WMS904 confirmed the presence of Cmc4 in OK05312, which is the only gene yet to be identified in OK05312 associated with WCM resistance.…”

“…The WCM exists in mixed populations of two biotypes (1 and 2) in North America (Harvey et al, 1999; Hein et al, 2012; Malik, 2001). Acaricides have never been developed to control A. tosichella (Morgan et al, 2005), prompting the development of mite‐resistant wheat cultivars ‘Salmon’ and ‘TAM 107’ containing the Cmc3 gene (Martin et al, 1983; Schlegel and Kynast, 1987), ‘Radiant’ in western Canada containing Cmc1 (Thomas et al, 2012), and ‘TAM 112’ with gene names yet to be released (Rudd et al, 2014). In 1996, the Wheat Genetics Resource Center (WGRC) released the germplasm line KS96WGRC40 containing both Cmc3 and Cmc4 .…”

Wheat Curl Mite Resistance in Hard Winter Wheat in the US Great Plains

“…Wheat cultivar 'Karl 92' was used as a susceptible check and TAM 112 as a resistant check (Price et al, 2014;Rudd et al, 2014). This included 40 lines from the Northern Regional Performance Nursery (NRPN, 2014), which contained advanced wheat lines from South Dakota, Nebraska, Montana, and Canada; 40 lines from the Southern Regional Performance Nursery (SRPN, 2014), comprised of lines from South Dakota, Nebraska, Texas, Kansas, Oklahoma, and Colorado; 40 lines from Texas Elite yield trials (TXE) in 2013, composed of lines from Texas A&M AgriLife wheat breeding programs; and 52 other released cultivars and elite breeding (CEB) lines from the southern Great Plains.…”

“…Cultivars Amigo (PI 578213, Sebesta et al, 1995), 'TAM 110' (Lazar et al, 1997), 'TAM 303,' and 'WB-cedar' have 1AL.1RS and all were resistance to TWCMC1 and susceptible to TWCMC2 (Table 1). Cultivars Byrd and TAM 204, both derived from TAM 112 (Haley et al, 2012;Rudd et al, 2014), do not have 1AL.1RS and still showed resistant to TWCMC2. The Ae.…”