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GrainGenes Gene Report: P2 (Triticum)

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Gene	P2 (Triticum)
Gene Class	Elongated glume
Orthologous Gene Set	Elongated glume
Reference	Wang HJ et al. (2002) Genetic mapping of loci determining long glumes in the genus Triticum. Euphytica 123:287-293. Watanabe N (1999) Genetic control of the long glume phenotype in tetraploid wheat by homoeologous chromosomes. Euphytica 106:39-43.
URL	Gene symbol detail in the 'Catalog of Gene Symbols for Wheat' at Komugi
Chromosome	7B Watanabe N (1999) Genetic control of the long glume phenotype in tetraploid wheat by homoeologous chromosomes. Euphytica 106:39-43.
Chromosome Arm	7BL Watanabe N (1999) Genetic control of the long glume phenotype in tetraploid wheat by homoeologous chromosomes. Euphytica 106:39-43.
Germplasm	Recombinant inbred LD222*7/T. ispahanicum
Comment	The loci of T. polonicum, T. petropavlovsky and T. isphanicum are allelic ('homoeoallelic') whereas other workers had claimed genes in the first two forms were not allelic. Wang et al, 2002, concluded that loci bearing alleles for elongated glumes in T. turanicum and T. durum conv. falcatum were not part of the above series.

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