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14种植物中预折叠蛋白基因家族的分析

Analysis of the Prefoldin Gene Family in 14 Plant Species.

作者信息

Cao Jun

机构信息

Institute of Life Science, Jiangsu University Zhenjiang, China.

出版信息

Front Plant Sci. 2016 Mar 15;7:317. doi: 10.3389/fpls.2016.00317. eCollection 2016.

DOI:10.3389/fpls.2016.00317
PMID:27014333
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4792155/
Abstract

Prefoldin is a hexameric molecular chaperone complex present in all eukaryotes and archaea. The evolution of this gene family in plants is unknown. Here, I identified 140 prefoldin genes in 14 plant species. These prefoldin proteins were divided into nine groups through phylogenetic analysis. Highly conserved gene organization and motif distribution exist in each prefoldin group, implying their functional conservation. I also observed the segmental duplication of maize prefoldin gene family. Moreover, a few functional divergence sites were identified within each group pairs. Functional network analyses identified 78 co-expressed genes, and most of them were involved in carrying, binding and kinase activity. Divergent expression profiles of the maize prefoldin genes were further investigated in different tissues and development periods and under auxin and some abiotic stresses. I also found a few cis-elements responding to abiotic stress and phytohormone in the upstream sequences of the maize prefoldin genes. The results provided a foundation for exploring the characterization of the prefoldin genes in plants and will offer insights for additional functional studies.

摘要

前折叠素是一种存在于所有真核生物和古细菌中的六聚体分子伴侣复合物。该基因家族在植物中的进化情况尚不清楚。在此，我在14种植物物种中鉴定出了140个前折叠素基因。通过系统发育分析，这些前折叠素蛋白被分为九组。每个前折叠素组中都存在高度保守的基因结构和基序分布，这暗示了它们功能的保守性。我还观察到玉米前折叠素基因家族的片段重复。此外，在每组基因对中鉴定出了一些功能分歧位点。功能网络分析确定了78个共表达基因，其中大多数参与转运、结合和激酶活性。进一步研究了玉米前折叠素基因在不同组织、发育时期以及生长素和一些非生物胁迫下的差异表达谱。我还在玉米前折叠素基因的上游序列中发现了一些响应非生物胁迫和植物激素的顺式作用元件。这些结果为探索植物中前折叠素基因的特性奠定了基础，并将为进一步的功能研究提供见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/272036e3f44d/fpls-07-00317-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/6159ec88a73e/fpls-07-00317-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/d197fce7f286/fpls-07-00317-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/6a0a4552a27b/fpls-07-00317-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/f826d0061c6d/fpls-07-00317-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/2ac98a83c328/fpls-07-00317-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/56b69cf4e690/fpls-07-00317-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/2b93b3fa87cb/fpls-07-00317-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/272036e3f44d/fpls-07-00317-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/6159ec88a73e/fpls-07-00317-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/d197fce7f286/fpls-07-00317-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/6a0a4552a27b/fpls-07-00317-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/f826d0061c6d/fpls-07-00317-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/2ac98a83c328/fpls-07-00317-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/56b69cf4e690/fpls-07-00317-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/2b93b3fa87cb/fpls-07-00317-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17a3/4792155/272036e3f44d/fpls-07-00317-g008.jpg

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