论文部分内容阅读
春化反应的遗传控制是由几个研究者发现的。Pugsley(1971,1972)发现春性和冬性的生长习性至少是由四个基因控制的,他把这四个基因命名为Vrn1,Vrn2,Vrn3和Vrn4。利用非整倍体和变种间染色体代换系可以把Vrn1和Vrn2分别定位于5A和5D染色体的长臂上(Law等1976,Maystrenko,1974),Vrn5可能是一个附加位点,它可能位于7B染色体的短臂上(Law,1966)。也有人报导,其他染色体对于春化要求也有一些微小的影响。
The genetic control of the vernalization reaction was discovered by several researchers. Pugsley (1971, 1972) found that spring and winter growth habits are controlled by at least four genes, and he names the four genes Vrn1, Vrn2, Vrn3 and Vrn4. Vrn1 and Vrn2 can be mapped on the long arms of chromosomes 5A and 5D, respectively, using aneuploidy and interchain chromosomal substitution lines (Law et al. 1976, Maystrenko, 1974). Vrn5 may be an additional site that may be located at 7B Chromosome short arm (Law, 1966). It has also been reported that other chromosomes also have some minor effects on vernalization requirements.