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Cloning and characterization of two chlorophyll A/B binding protein genes and analysis of their gene family in Camellia sinensis
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Cloning and characterization of two chlorophyll A/B binding protein genes and analysis of their gene family in Camellia sinensis
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Journal Article
Cloning and characterization of two chlorophyll A/B binding protein genes and analysis of their gene family in Camellia sinensis
2020
Overview
In this study, two chlorophyll A/B binding protein (CAB) genes (
CsCP1
and
CsCP2
) in tea plant were cloned. The proteins encoded by these genes belong to the external or internal antenna proteins of PS II, respectively. They may be the targets of physiological regulation for tea leaf cell PS II because they all contain multiple functional domains and modifiable sites. The CAB gene family in the tea genome consists of 25 homologous genes. We measured the expression patterns of ten genes in the
CsCP1
and
CsCP2
subfamily under six different stresses.
CsCP1
expression was inhibited in response to 6 kinds of stress;
CsCP2
expression was slightly upregulated only after cold stress and ABA treatment. However, the expression levels of CSA016997 and CSA030476 were upregulated significantly in the six stresses. The results suggested that the 10 CAB genes may have different functions in tea leaves. Moreover, changes in the expression of the 10 genes under stress appear to be related to ABA- and MeJA-dependent signalling pathways, and their responses to MeJA treatment is faster than those to ABA. In addition, we introduced our experiences for cloning the genes in the context of complex genomes.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
/ 38/43
/ 38/77
/ CAB gene
/ Camellia sinensis - genetics
/ Camellia sinensis - metabolism
/ Chlorophyll Binding Proteins - chemistry
/ Chlorophyll Binding Proteins - genetics
/ Chlorophyll Binding Proteins - metabolism
/ Cloning
/ Gene Expression Regulation, Plant
/ Genes
/ Genomes
/ Humanities and Social Sciences
/ Leaves
/ Science
/ Structure-Activity Relationship
/ Tea
