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近十年来,普通小麦的产量随株高的降低而增加,因而广泛种植半矮秆和矮秆小麦品种。大多数矮秆和半矮秆品种的株高是由日本品种农林10号转育的隐性基因所控制(菲克和Qualset,1973)。农林10号品种携带二个主效基因,但也有几个微效基因和修饰因子,以致株高表现出典型的数量遗传。利用代换系已将控制数量性状的基因准确地定位于特定染色体上(Kuspira和昂劳,1957;Hermsen,1963;劳,1967;及其他)。然而这个方法除其它缺点外,还
In the past ten years, the yield of common wheat increased with the decrease of plant height, so the semi-dwarf and dwarf wheat varieties were widely planted. The majority of dwarf and semi-dwarf cultivars have their plant height controlled by the recessive gene that was transferred from Japanese cultivar Nonglin10 (Fick and Qualset, 1973). Nonglin10 carries two major genes, but there are also several minor and modification factors, so that the plant height shows typical quantitative inheritance. Using substitution lines, genes controlling the quantitative traits have been precisely mapped on specific chromosomes (Kuspira and Angou 1957; Hermsen 1963; Lau, 1967; and others). However, this method, among other shortcomings, also