籼稻标记性状近等基因系的构建

Breeding Near-isogenic Lines of Morphological Markers in indica Rice

选用涉及水稻全部１２条染色体的、表现简单遗传且易于通过目测识别鉴定的形态标记材料２７份，以早籼品种浙辐８０２为轮回亲本，通过３￣４次回交，转育成了一套籼型标记性状近等基因系．该套材料除所带标记性状外，生育期、株高、分蘖力和穗子大小等农艺性状与轮回亲本基本相仿．

Twenty-seven morphological marker genes on 12 chromosomes were introduced into indica rice by 3～4 baekcrosses with an early season indica rice Zhefu 802 as recurrent parent, and 27 near-isogenic lines with marker genes were obtained. Agronomic characters of the near-isogenic lines were similar to the recurrent parent excepting to the marker ones.