CAJ | 학술논문

将矮秆基因Rht10导入八倍体小偃麦中获得了染色体数为2n＝56的矮秆稳定材料攀89074-1-1-1，其中Rht10基因表现了极强的降秆能力，同时攀89074-1-1-1的幼苗对赤霉酸反应不敏感，表明Rht10基因能在八倍体小偃麦遗传背景中正常表达。用该矮秆小偃麦品系与含有小麦-簇毛麦6VS／6AL易位系92R137杂交，对F2群体的植株株高及其它农艺性状的遗体分析表明，Rht10基因在杂交后代中呈显性遗传，从该群体中能够获得一批半矮秆、分蘖力强、抗锈病和白粉病的株系，可望从中培育结合中间偃麦草和簇毛麦优良基因的中间材料。
장왜간기인Rht10도입팔배체소언맥중획득료염색체수위2n＝56적왜간은정재료반89074-1-1-1，기중Rht10기인표현료겁강적강간능력，동시반89074-1-1-1적유묘대적매산반응불민감，표명Rht10기인능재팔배체소언맥유전배경중정상표체。용해왜간소언맥품계여함유소맥-족모맥6VS／6AL역위계92R137잡교，대F2군체적식주주고급기타농예성상적유체분석표명，Rht10기인재잡교후대중정현성유전，종해군체중능구획득일비반왜간、분얼력강、항수병화백분병적주계，가망종중배육결합중간언맥초화족모맥우량기인적중간재료。
A stable dwarfing line Pan89074-1-1-1 with 2n＝56 was developedfrom the transferring of dwarfing gene Rht 10 to octoploid Triti trigia.Line Pan89074-1-1-1 exhibited plant height of 60cm,in which the Rht1 0 showed strong abilities of reducing plant height.The GA3 insensitivity of Pan 89074-1-1-1 revealed that the gene Rht10 was easily expressed in octoploid Trititrigia background.The relationship between plant height and other agronom ic traits was analyzed in the F2 progenies from the cross between Pan89074-1 -1-1 and 92R137,a line with Triticum dasypyrum 6VS-6AL translocation chro mosomes.In the F2 population,the gene Rht10 exhibited dominant inheritances an d a number of plants with semi-dwarfing,strong tiller ability and resistance to rust and powdery mildew were chosen.It is likely that the advanced lines with n ovel genes from Thinopyrum intermedium and Dasypyrum villosum can be dev eloped from the progenies.