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GrainGenes Reference Report: PBR-120-79

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Reference	PBR-120-79
Title	Development of dominant nuclear male-sterile lines with a blue seed marker in durum and common wheat
Journal	Plant Breeding
Year	2001
Volume	120
Pages	79-81
Author	Tian N Liu ZQ
Abstract	Summary: In order to develop genic male-sterile lines with a blue seed marker, male-sterile plants, controlled by a dominant nuclear gene Ms2, were used as female parents against a 4E disomic addition line 'Xiaoyan Lanli' (2n=44, AABBDD+4EII) as the male parent to produce monosomic addition lines with blue seed. Male-sterile plants from the monosomic addition lines were pollinated with durum wheat for several generations and in 1989 a male-sterile line with the blue grain gene and the male-sterile gene Ms2 on the same additional chromosome was detected and named line 89-2343. Using this line, the blue seed marker was successfully added to a short male-sterile line containing Ms2 and Rht10. The segregation ratios of male sterility and seed colour as well as the chromosome figurations of different plants indicated that the blue grain genes, Ms2 and Rht10 were located on the same additional chromosome. Cytological analysis showed that the blue marker male-sterile lines in durum wheat and common wheat were monosomic with an additional chromosome 4E. The inheritance ratio for blue seed male-sterile plants and white seed male-fertile plants was 19.7% and 80.3%, respectively, in common wheat. The potential for using blue marker sterile lines in population improvement and hybrid production is discussed
Keyword	[ Hide all but 1 of 24 ] addition lines blue seed marker chromosome color development dominant durum durum wheat gene generation hybrid improvement inheritance male sterility male-fertile marker nuclear gene nuclear male sterility population seed segregation sterility triticum aestivum white

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