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GrainGenes Gene Class Report: Uniculm stunt

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Gene Class	Uniculm stunt
Reference	Christopher DA et al. (1985) Mode of inheritance and chromosomal allocation of stunting genes in commom wheat. Crop Science 25:147-151. Inbal E (1982) Morphogenetic, genetic and physiologic aspects of stunting expression in wheat (Triticum aestivum L.).
Abbreviation	Us
Character affected	Tiller development
Gene	Us1 (Triticum) Us2 (Triticum)
Allele	Us1 (Triticum) us1 (Triticum) Us2 (Triticum) us2 (Triticum
Comment	Stunting is favoured by a combination of long days and low night temperatures (412). It is caused by duplicate recessive genes us1 and us2 located in chromosomes 4A and 5B, respectively (154). Line 492 (us1us1/us2us2) is stunted while Alfa and Jaral (Us1Us1/us2us2) and Mabruk (us1us1/Us2Us2) are normal (412).
Wheat Gene Catalog Reference	154 Christopher DA et al. (1985) Mode of inheritance and chromosomal allocation of stunting genes in commom wheat. Crop Science 25:147-151. 412 Inbal E (1982) Morphogenetic, genetic and physiologic aspects of stunting expression in wheat (Triticum aestivum L.).

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