晨间信号Morning Signal
《科学》 第392卷 第6800期 · 2026年5月21日 · 中文解读

植物顺式调控序列演化的深层时间景观

A deep-time landscape of plant cis-regulatory sequence evolution · K. R. Amundson et al.
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本文介绍了一种名为Conservatory的算法,利用微共线性和迭代比对,在284种植物中发现了约230万个保守非编码序列,其中超过3000个早于被子植物出现,并揭示了顺式调控序列演化的基本原理。
原文开头
Kirk R. Amundson1†, Anat Hendelman2,3†, Danielle Ciren4, Hailong Yang1, Amber E. de Neve1, Shai Tal5, Adar Sulema5, David Jackson2, Madelaine E. Bartlett1,6*, Zachary B. Lippman2,3,4*, Idan Efroni5* Developmental gene function is often conserved over deep time, but cis-regulatory sequence conservation is difficult to identify. Rapid sequence turnover, paleopolyploidy, structural variation, and limited phylogenomic sampling have impeded conserved noncoding sequence (CNS) discovery. Using Conservatory, an algorithm that leverages microsynteny and iterative alignments to map CNS-gene associations over evolution, we uncovered ~2.3 million CNSs, including more than 3000 predating angiosperms, from 284 plant species spanning 300 million years of diversification. Ancient CNSs were enriched near developmental regulators, and mutating CNSs near HOMEOBOX genes produced strong phenotypes. …
摘自《科学》(Science)第392卷 第6800期 · 2026年5月21日,K. R. Amundson et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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