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GrainGenes Reference Report: HER-74-518

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Reference	HER-74-518
Title	Genetic control of the rate of transmission of rye B chromosomes. II. 0B X 2B crosses
Journal	Heredity
Year	1995
Volume	74
Pages	518-523
Author	Jimenez M Romera F Gallego A Puertas M
Abstract	Twenty female 0B X male 2B crosses were made in which a single male was crossed with four different females, and the character 'mean number of Bs per plant in the progeny' was analysed The 2B plants used as males and the 0B females belonged either to low or to high transmission rate lines, previously selected The genetic basis of the difference between the high and low transmission rate lines was statistically tested The male group (high or low class of the 2B male) has a significant effect on the progeny, while the female group (high or low class of the 0B female) has no significant effect The genes controlling the transmission rate of B chromosomes affect the proportion of 0B vs 2B plants in the 0B X 2B cross, but this is not a result of any effect on the nondisjunction mechanism, since the proportion of 1B plants is low in all cases Structural variants of B chromosomes appeared de novo at a high frequency
Keyword	b-chromosomes [ Show all 8 ]

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