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BS20-T is a thermo-sensitive genic male sterile (TGMS) wheat line (Triticum aestivum L.) used in hybrid wheat breeding in northern China. BS20-T was crossed with common wheat variety ZN7. F1 plants were highly fertile. The segregation ratio of male fertile and male sterile individuals in F2 and BC1F1 plants were close to 3:1 and 1:1, respectively. Other crosses of BS20-T also segregated for a single...
Using a recessive mutant with enhanced salt tolerance at seedling stage obtained from an indica rice cultivar R401 by gamma-ray irradiation, a novel gene controlling salt tolerance in rice was previously mapped to a 406-kb region on chromosome 6. We named the gene Seedling Salt Tolerance ( SST ). In this study, with a large F 2 population derived from a cross...
Intergeneric hybridization is an effective way of improving crop resistance against biotic and tolerance to abiotic stresses. Here, we describe an intergeneric hybrid between Chrysanthemummorifolium ‘Nannongxiaoli’ and Artemisia vulgaris ‘Variegata’ using ovule rescue. Chromosome counting confirmed that out of the 124 regenerated plantlets, 19 were genuine hybrids, carrying the expected hybrid number...
Using embryo rescue, we generated an intergeneric hybrid between Chrysanthemum × morifolium ‘Maoyan’ and Artemisia japonica Thunb. Cytological tests confirmed that regenerated plantlets were all genuine hybrids possessing 45 chromosomes, with 27 chromosomes inherited from C. × morifolium (2n = 6x = 54) and the other 18 derived from A. japonica (2n = 4x = 36). Hybrid plant flowered normally. The shape...
Oryza rufipogon (IRGC105491) is a wild relative of cultivated rice, it contains two favorable yield-enhancing genes (yld1.1 and yld2.1) on chromosomes 1 and 2, respectively, which are capable of improving the yield of hybrid rice by 18 and 17%, respectively. SSR markers RM9, RM24, RM5 and RM306 are flanking yld1.1, while RM166 and RM208 are mapped in the close region to yld2.1. These molecular markers...
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