生物
同源异型基因
金鱼草
萼片
金鱼草
原基
花瓣
遗传学
雄蕊
苞片
雌蕊
分生组织
花序
基因
植物
基因表达
拟南芥
突变体
花粉
作者
Enrico Coen,Javier Romero,Sandra Doyle,Robert C. Elliott,George J. Murphy,Rosemary Carpenter
出处
期刊:Cell
[Elsevier]
日期:1990-12-01
卷期号:63 (6): 1311-1322
被引量:778
标识
DOI:10.1016/0092-8674(90)90426-f
摘要
Plants carrying the floricaula (flo) mutation cannot make the transition from inflorescence to floral meristems and have indeterminate shoots in place of flowers. The flo-613 allele carries a Tam3 transposon insertion, which allowed the isolation of the flo locus. The flo gene encodes a putative protein (FLO) containing a proline-rich N-terminus and a highly acidic region. In situ hybridization shows that the flo gene is transiently expressed in the very early stages of flower development. The earliest expression seen is in bract primordia, followed by sepal, petal, and carpel primordia, but no expression is detected in stamen primordia. This pattern of expression has implications for how flo affects phyllotaxis, organ identity, and determinacy. We propose that flo interacts in a sequential manner with other homeotic genes affecting floral organ identity.
科研通智能强力驱动
Strongly Powered by AbleSci AI