Duplication and functional divergence of a calcium sensor in the Brassicaceae.
Brassicaceae
CALCINEURIN B-LIKE10
calcium sensor
functional divergence
gene duplication
salt tolerance
Journal
Journal of experimental botany
ISSN: 1460-2431
Titre abrégé: J Exp Bot
Pays: England
ID NLM: 9882906
Informations de publication
Date de publication:
09 05 2020
09 05 2020
Historique:
received:
05
08
2019
accepted:
27
01
2020
pubmed:
29
1
2020
medline:
15
5
2021
entrez:
29
1
2020
Statut:
ppublish
Résumé
The presence of varied numbers of CALCINEURIN B-LIKE10 (CBL10) calcium sensor genes in species across the Brassicaceae and the demonstrated role of CBL10 in salt tolerance in Arabidopsis thaliana and Eutrema salsugineum provided a unique opportunity to determine if CBL10 function is modified in different species and linked to salt tolerance. Salinity effects on species growth and cross-species complementation were used to determine the extent of conservation and divergence of CBL10 function in four species representing major lineages within the core Brassicaceae (A. thaliana, E. salsugineum, Schrenkiella parvula, and Sisymbrium irio) as well as the first diverging lineage (Aethionema arabicum). Evolutionary and functional analyses indicate that CBL10 duplicated within expanded lineage II of the Brassicaceae and that, while portions of CBL10 function are conserved across the family, there are species-specific variations in CBL10 function. Paralogous CBL10 genes within a species diverged in expression and function probably contributing to the maintenance of the duplicated gene pairs. Orthologous CBL10 genes diverged in function in a species-specific manner, suggesting that functions arose post-speciation. Multiple CBL10 genes and their functional divergence may have expanded calcium-mediated signaling responses and contributed to the ability of certain members of the Brassicaceae to maintain growth in salt-affected soils.
Identifiants
pubmed: 31989164
pii: 5716463
doi: 10.1093/jxb/eraa031
pmc: PMC7210777
doi:
Substances chimiques
Arabidopsis Proteins
0
CBL10 protein, Arabidopsis
0
Calcium-Binding Proteins
0
Calcium
SY7Q814VUP
Types de publication
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
2782-2795Informations de copyright
© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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