| Download | - View final version: Genome-wide comparative analysis of Annexin superfamily in plants (PDF, 1.4 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1371/journal.pone.0047801 |
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| Author | Search for: Jami, Sravan Kumar1; Search for: Clark, Greg B.; Search for: Ayele, Belay T.; Search for: Ashe, Paula1; Search for: Kirti, Pulugurtha Bharadwaja |
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| Affiliation | - National Research Council of Canada. Aquatic and Crop Resource Development
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| Format | Text, Article |
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| Subject | annexin gene; Arabidopsis; binding site; calcium binding; gene duplication; gene identificatio; gene location; gene loss; gene sequence; genetic association; genetic variability; green alga; intron; molecular phylogeny; phylogenetic tree; plant evolution; plant gene; plant genome; protein domain; rice; structure analysis |
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| Abstract | Most annexins are calcium-dependent, phospholipid-binding proteins with suggested functions in response to environmental stresses and signaling during plant growth and development. They have previously been identified and characterized in Arabidopsis and rice, and constitute a multigene family in plants. In this study, we performed a comparative analysis of annexin gene families in the sequenced genomes of Viridiplantae ranging from unicellular green algae to multicellular plants, and identified 149 genes. Phylogenetic studies of these deduced annexins classified them into nine different arbitrary groups. The occurrence and distribution of bona fide type II calcium binding sites within the four annexin domains were found to be different in each of these groups. Analysis of chromosomal distribution of annexin genes in rice, Arabidopsis and poplar revealed their localization on various chromosomes with some members also found on duplicated chromosomal segments leading to gene family expansion. Analysis of gene structure suggests sequential or differential loss of introns during the evolution of land plant annexin genes. Intron positions and phases are well conserved in annexin genes from representative genomes ranging from Physcomitrella to higher plants. The occurrence of alternative motifs such as K/R/HGD was found to be overlapping or at the mutated regions of the type II calcium binding sites indicating potential functional divergence in certain plant annexins. This study provides a basis for further functional analysis and characterization of annexin multigene families in the plant lineage. |
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| Publication date | 2012-11-02 |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 55440 |
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| NPARC number | 21268511 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 586d8edc-ed79-423d-807c-30d9f1db7659 |
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| Record created | 2013-09-03 |
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| Record modified | 2020-05-29 |
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