孢子体
多细胞生物
配子体
生物
祖先
进化生物学
植物进化
交替(语言学)
遗传学
基因
生态学
地理
基因组
哲学
考古
语言学
花粉
作者
John L. Bowman,Liam N Briginshaw,Stevie N. Florent
出处
期刊:Current Topics in Developmental Biology
日期:2019-01-01
卷期号:: 35-53
被引量:32
标识
DOI:10.1016/bs.ctdb.2018.10.001
摘要
Land plants evolved from an ancestral alga from which they inherited developmental and physiological characters. A key innovation of land plants is a life cycle with an alternation of generations, with both haploid gametophyte and diploid sporophyte generations having complex multicellular bodies. The origins of the developmental genetic programs patterning these bodies, whether inherited from an algal ancestor or evolved de novo, and whether programs were co-opted between generations, are largely open questions. We first provide a framework for land plant evolution and co-option of developmental regulatory pathways and then examine two cases in more detail.
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