The Physcomitrella genome reveals evolutionary insights into the conquest of land by plants
The Physcomitrella genome reveals evolutionary insights into the conquest of land by plants
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DOI：
10.1126/science.1150646
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发表时间：
2008-01-04
期刊：
影响因子：
56.9
通讯作者：
Boore, Jeffrey L.
中科院分区：
文献类型：
--
作者：
Rensing, Stefan A.;Lang, Daniel;Boore, Jeffrey L.
我们报告了模式苔藓小立碗藓的基因组序列草案，并将其特征与有花植物和单细胞水生藻类的特征进行了比较，其中有花植物与小立碗藓分离了4亿多年。这种比较揭示了基因组的变化伴随着进化运动到陆地，包括基因家族复杂性的普遍增加;与水生环境相关的基因的丢失（e。例如，在一个实施例中，鞭毛臂）;获得耐受陆地胁迫的基因（e.例如，在一个实施例中，温度和水可用性的变化）;以及用于协调多细胞生长和脱水响应的生长素和脱落酸信号传导途径的发展。立碗藓的基因组提供了一个资源，系统发育推断基因功能和植物过程的实验分析，通过这种植物的独特设施，反向遗传学。
We report the draft genome sequence of the model moss Physcomitrella patens and compare its features with those of flowering plants, from which it is separated by more than 400 million years, and unicellular aquatic algae. This comparison reveals genomic changes concomitant with the evolutionary movement to land, including a general increase in gene family complexity; loss of genes associated with aquatic environments ( e. g., flagellar arms); acquisition of genes for tolerating terrestrial stresses ( e. g., variation in temperature and water availability); and the development of the auxin and abscisic acid signaling pathways for coordinating multicellular growth and dehydration response. The Physcomitrella genome provides a resource for phylogenetic inferences about gene function and for experimental analysis of plant processes through this plant's unique facility for reverse genetics.