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GrainGenes Reference Report: JJG-60-565

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Reference	JJG-60-565
Title	Hybrid dysgenesis in common wheat caused by gametocidal genes.
Journal	Japanese Journal of Genetics
Year	1985
Volume	60
Pages	565-578
Author	Tsujimoto H Tsunewaki K
Type	Article
Abstract	When gametocidal agents (gametocidal genes or chromosomes) derived from four Aegilops species, Ae. speltoides, Ae. sharonensis, Ae. longissima and Ae. triuncialis, are present in a hetero- or hemizygous state in wheat, they cause a syndrome characterized by male and female sterility, seed shriveling, chromosome breakage and mutation. However, the characteristics of the syndrome differ among the agents. Gametocidal gene, Gc1, originally from Ae, speltoides, induces sterility, seed shriveling and mutation in the F1 generation. In this case, seed shriveling is accentuated by low temperature, about 5 to 11 hrs after the pollination. Gametocidal chromosomes, 4Ssh of Ae. sharonesis and 4S1 of Ae. longissima, cause high rates of mutation and chromosome aberration in addition to sterility, although they do not induce seed shriveling. Chromosome 3C of Ae. triuncialis induces only sterility in the F1, though chromosome breakage and mutation are induced in the B11 generation in the presence of its suppressor, Igc1 (from a common wheat cultivar Norin 26). The syndromes caused in wheat by these gametocidal agents are compared to hybrid dysgenesis observed in Drosophila melanogaster.
External Databases	DOI: 10.1266/jjg.60.565
Gene	Igc1 (Triticum)
Gene Class	Suppression of gametocidal genes
Gene Catalogue Number	1083
Cited in	McIntosh RA et al. (1995) Catalogue of gene symbols for wheat. Proceedings of the 8th International Wheat Genetics Symposium 1333-1500.

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