GrainGenes Gene Class Report: Crossability
Gene Class
Crossability
Reference
Zheng YL et al. (1992) Chromosome location of a new crossability gene in common wheat. Wheat Information Service 75:36-40.
[ Show all 12 ]
Abbreviation
kr
Character affected
Hybridization ability
Gene
kr1 (Triticum) kr2 (Triticum) kr3 (Triticum) kr4 (Triticum)
Allele
Kr1 (Triticum) kr1 (Triticum) Kr2 (Triticum)
Locus
Kr1 Kr2
Comment
High crossability of some wheats, particularly those of Chinese origin, including Chinese 446 (572), Chinese Spring (857), and TH 3929 (660), with cereal rye, weed rye (S. segetale L.)(1209), and other species, e.g., Hordeum bulbosum (994, 1004, 1066) and H. vulgare (238), is determined by additive recessive genes (572). Using the Chinese Spring/Cheyenne chromosome substitution series, Sasaki & Wada (895) found significant differences in crossability for chromosomes 5B, 7D, 1D and 4B. Differences between rye lines also occur (895, 1056). For a list of wheat/rye crossabilities, see references 1207 and 992. Kr1 is more potent in suppressing crossability than Kr2 which is stronger in effect than Kr3 (994). According to Zheng et al. (1212), the effect of Kr4 falls between that of Kr1 and Kr2. Allelic variation in the potency of dominant suppressor genes was reported in references 993 and 235. Evidence for allelic variation in dominant suppressors was reported in reference 995.
Wheat Gene Catalog Reference
1212 Zheng YL et al. (1992) Chromosome location of a new crossability gene in common wheat. Wheat Information Service 75:36-40.
[ Show all 12 ]
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Gene Class Report: Crossability
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||