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GrainGenes Gene Class Report: Elongated glume

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Gene Class	Elongated glume
Reference	Watanabe N (1999) Genetic control of the long glume phenotype in tetraploid wheat by homoeologous chromosomes. Euphytica 106:39-43. Matsumura S (1950) Linkage studies in Triticum II. P-linkage and the manifold effects of the P gene. Japanese Journal of Genetics 25:111-118.
LINK	Elongated glume genes at Komugi: Catalog of Gene Symbols for Wheat
Character affected	Spike morphology
Gene	[ Hide all but 1 of 6 ] P1 (Triticum) P2 (Triticum) P (Triticum) Eg (Triticum) P-A^pol^1 (Triticum) P-A^pet^1 (Triticum)
Locus	P1 P-A^pol^1 P-A^pet^1
Comment	Elongated glume is the phenotype associated with the polonicum group of tetraploid wheats. Expression in hexaploid wheat is much reduced compared with tetraploids. Matsumura (1950) reported linkage of gene P and a gene for red coleoptiles implicating chromosomes 7A or 7B. A different gene was subsequently located in chromosome 7B (Watanabe N, 1999)

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