To stripe or not to stripe: the origin of a novel foliar pigmentation pattern in monkeyflowers (Mimulus).
To stripe or not to stripe: the origin of a novel foliar pigmentation pattern in monkeyflowers (Mimulus).
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要条纹或不带有条纹:猴子花(Mimulus)中新型叶面色素沉着模式的起源。
DOI:
10.1111/nph.18486
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发表时间:
2023-01
期刊:
影响因子:
9.4
通讯作者:
Yuan, Yao-Wu
中科院分区:
文献类型:
--
作者:
LaFountain, Amy M.;McMahon, Hayley E.;Reid, Noah M.;Yuan, Yao-Wu
关键词:
The origin of phenotypic novelty is one of the most challenging problems in evolutionary biology. Although genetic regulatory network rewiring or co‐option has been widely recognised as a major contributor, in most cases how such genetic rewiring/co‐option happens is completely unknown.We have studied a novel foliar pigmentation pattern that evolved recently in the monkeyflower speciesMimulus verbenaceus. Through genome‐wide association tests using wild‐collected samples, experimental crosses of laboratory inbred lines, gene expression analyses, and functional assays, we identified an anthocyanin‐activatingR2R3‐MYBgene,STRIPY, as the causal gene triggering the emergence of the discrete, mediolateral anthocyanin stripe in theM. verbenaceusleaf.Chemical mutagenesis revealed the existence of upstream activators and repressors that form a ‘hidden’ prepattern along the leaf proximodistal axis, potentiating the unique expression pattern ofSTRIPY. Population genomics analyses did not reveal signatures of positive selection, indicating that nonadaptive processes may be responsible for the establishment of this novel trait in the wild.This study demonstrates that the origin of phenotypic novelty requires at least two separate phases, potentiation and actualisation. The foliar stripe pattern ofM. verbenaceusprovides an excellent platform to probe the molecular details of both processes in future studies.
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影响因子:
5.8
作者:
Barnett, Derek W.;Garrison, Erik K.;Marth, Gabor T.
通讯作者:
Marth, Gabor T.
DOI:
10.1093/plcell/koab114
发表时间:
2021-08-13
期刊:
The Plant cell
影响因子:
--
作者:
Berardi AE;Esfeld K;Jäggi L;Mandel T;Cannarozzi GM;Kuhlemeier C
通讯作者:
Kuhlemeier C
影响因子:
18
作者:
Challa, Krishna Reddy;Rath, Monalisha;Nath, Utpal
通讯作者:
Nath, Utpal
影响因子:
9.4
作者:
Cooney, Luke J.;van Klink, John W.;Gould, Kevin S.
通讯作者:
Gould, Kevin S.
影响因子:
5.8
作者:
Danecek, Petr;Auton, Adam;Durbin, Richard
通讯作者:
Durbin, Richard