Molecular evolution and diversification of the SMXL gene family

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F18%3A00101161" target="_blank" >RIV/00216224:14740/18:00101161 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1093/jxb/ery097" target="_blank" >http://dx.doi.org/10.1093/jxb/ery097</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/jxb/ery097" target="_blank" >10.1093/jxb/ery097</a>

Result language

angličtina

Original language name

Molecular evolution and diversification of the SMXL gene family

Original language description

Strigolactones (SLs) are a relatively recent addition to the list of plant hormones that control different aspects of plant development. SL signalling is perceived by an alpha/beta hydrolase, DWARF 14 (D14). A close homolog of D14, KARRIKIN INSENSTIVE2 (KAI2), is involved in perception of an uncharacterized molecule called karrikin (KAR). Recent studies in Arabidopsis identified the SUPPRESSOR OF MAX2 1 (SMAX1) and SMAX1-LIKE 7 (SMXL7) to be potential SCF-MAX2 complex-mediated proteasome targets of KAI2 and D14, respectively. Genetic studies on SMXL7 and SMAX1 demonstrated distinct developmental roles for each, but very little is known about these repressors in terms of their sequence features. In this study, we performed an extensive comparative analysis of SMXLs and determined their phylogenetic and evolutionary history in the plant lineage. Our results show that SMXL family members can be subdivided into four distinct phylogenetic clades/classes, with an ancient SMAX1. Further, we identified the Glade-specific motifs that have evolved and that might act as determinants of SL-KAR signalling specificity. These specificities resulted from functional diversities among the clades. Our results suggest that a gradual co-evolution of SMXL members with their upstream receptors D14/KAI2 provided an increased specificity to both the SL perception and response in land plants.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Experimental Botany

ISSN

0022-0957

e-ISSN

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Volume of the periodical

69

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

2367-2378

UT code for WoS article

000430727000016

EID of the result in the Scopus database

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