作物学报 ›› 2015, Vol. 41 ›› Issue (06): 838-844.doi: 10.3724/SP.J.1006.2015.00838
王晓雯,蒋钰东,廖红香,杨波,邹帅宇,朱小燕,何光华*,桑贤春*
WANG Xiao-Wen,JIANG Yu-Dong,LIAO Hong-Xiang,YANG Bo,ZOU Shuai-Yu,ZHU Xiao-Yan,HE Guang-Hua*,SANG Xian-Chun*
摘要:
水稻开花灌浆期,内外颖呈绿色,含光合色素,为阐释非叶片组织叶绿体发育的分子机制,本文对EMS诱变获得的新型白穗突变体wp4进行了研究。抽穗灌浆期,wp4的穗轴呈绿色,内外颖呈乳白色;内外颖叶绿体发育不健全,无类囊体结构,叶绿素a、叶绿素b和类胡萝卜素含量极显著降低。此外,wp4全生育期叶片呈淡黄色,叶绿体内基质片层较少且排列松散;与野生型相比,wp4的叶绿素a含量显著降低,叶绿素b和类胡萝卜素含量虽略低,但差异未达到显著水平。农艺性状分析发现,与野生型相比,wp4的有效穗和结实率略有增加,其他性状则略有降低,但变化均未达到显著差异水平。遗传分析表明wp4受一对隐性核基因调控,利用1200株西农
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