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本研究旨在通过小麦愈伤组织培养从遗传和表型方面阐述影响株高的突变现象。从来自红色硬粒冬小麦“TAM105”未成熟胚愈伤组织的一个再生高秆植株后代中鉴定出矮秆植株。矮秆植株的茎矮、抽穗期晚;但是分蘗数多,每小穗籽粒数少,单株籽粒产量低,而且小花的育性比“TAM105”的低。当矮秆植株生长在低温(<20℃)和日照短(<12h)的条件下时,地上节部位呈分枝状。假设这一表现型是由一个简单的、部分显性基因决定,而且这个基因是以矮秆禾本科D1基因的互补方式起作用,根据表现
The aim of this study is to describe the phenotypic changes that affect plant height through wheat callus culture. Dwarf plants were identified from the progenies of a regenerated high stalk plant derived from callus of red durum winter wheat “TAM105” immature embryos. Dwarf plants have short stalks and late heading days; however, they have more tillers, fewer seeds per spike, lower grain yield per plant, and lower floret fertility than “TAM105”. When dwarf plants grow at low temperature (<20 ℃) and sunshine short (<12h) conditions, the aerial parts of the site was branched. Assuming that this phenotype is dictated by a simple, partially dominant gene and that this gene functions in a complementary manner to the Dwarf Poaceae Dl gene,