Regulation of gametangia and gametangiophore initiation in the liverwort Marchantia polymorpha
Regulation of gametangia and gametangiophore initiation in the liverwort Marchantia polymorpha
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DOI：
10.1007/s00497-021-00419-y
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发表时间：
2021-06
影响因子：
3.4
通讯作者：
Shohei Yamaoka;Keisuke Inoue;T. Araki
中科院分区：
文献类型：
--
作者：
Shohei Yamaoka;Keisuke Inoue;T. Araki
KeymessageThe liverwortMarchantia polymorpharegulates gametangia and gametangiophore development by using evolutionarily conserved regulatory modules that are shared with angiopersm mechanisms regulating flowering and germ cell differentiation.AbstractBryophytes，the earliest diverged lineage of land plants comprising of liverworts，mosses，and hornwords，produce gametangia，reproductive organs evolutionarily conserved but lost in existing angiopersms.配子囊发育的启动依赖于环境因素，如光，虽然潜在的机制仍然难以捉摸。最近的研究表明地钱通过使用被子植物中涉及光信号、microRNA介导的开花调节和生殖细胞分化的保守调节模块来调节配子囊和柄托（称为配子囊托）的发育。这些结果表明，这些模块获得了一个共同的祖先的陆地植物之前，分歧的brabetes，后来招募到被子植物的开花机制。
Key messageThe liverwortMarchantia polymorpharegulates gametangia and gametangiophore development by using evolutionarily conserved regulatory modules that are shared with angiosperm mechanisms regulating flowering and germ cell differentiation.AbstractBryophytes, the earliest diverged lineage of land plants comprised of liverworts, mosses, and hornworts, produce gametes in gametangia, reproductive organs evolutionarily conserved but lost in extant angiosperms. Initiation of gametangium development is dependent on environmental factors such as light, although the underlying mechanisms remain elusive. Recent studies showed that the liverwortMarchantia polymorpharegulates development of gametangia and stalked receptacles called gametangiophores by using conserved regulatory modules which, in angiosperms, are involved in light signaling, microRNA-mediated flowering regulation, and germ cell differentiation. These findings suggest that these modules were acquired by a common ancestor of land plants before divergence of bryophytes, and were later recruited to flowering mechanism in angiosperms.