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根 suberin lamellae 的进化创新有助于种子植物的兴起

Yu Su^1,2, Tao Feng^3,4, Chu-Bin Liu^1,2

¹National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Centre for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China.

|November 6, 2023

概括

血管屏障Suberin Lamellae (SL) 在早期种子植物中进化,增强了对干旱的耐受性. 这一创新可能有助于种子植物在干旱环境中超越.

科学领域:

进化生物学是进化的生物学.
植物科学植物科学
古植物学是古植物学.

背景情况:

由于气候变化,种子植物在碳岩纪晚期成为主导类植物.
能够使种子植物成功的进化创新仍然不清楚.

研究的目的:

为了调查suberin lamellae (SL) 在种植植物生长中的作用.
为了确定SL和卡斯帕海带发展的进化时间.
了解SL的遗传基础和功能意义.

主要方法:

血管屏障的比较进化分析.
基因家族的家族遗传学分析,涉及到苏贝林的形成.
假设基于解剖学和进化数据的功能优势.

主要成果:

卡斯帕尔带在血管植物最近的共同祖先 (MRCA) 中演变.
苏贝林叶片 (SL) 后来在种子植物的MRCA中进化.
大多数用于苏贝林形成的基因是通过种子植物MRCA中的基因重复产生的.
SL可以防止石头的水损失,提高干旱耐受性.

结论:

SL的演变为种植植物在干旱条件下提供了显著的选择性优势.
SL可能有助于的衰退和体的兴起.
了解SL进化对开发耐旱作物有影响.

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