Genome-wide identification and molecular evolution of Dof gene family in Camellia oleifera

被引:2
作者
Fu, Chun [1 ,2 ]
Xiao, YuJie [1 ,2 ]
Jiang, Na [3 ]
Yang, YaoJun [1 ,2 ]
机构
[1] Leshan Normal Univ, Key Lab Sichuan Prov Bamboo Pests Control & Resour, 778 Binhe Rd, Leshan 614000, Sichuan, Peoples R China
[2] Leshan Normal Univ, Coll Life Sci, 778 Binhe Rd, Leshan 614000, Sichuan, Peoples R China
[3] Leshan Normal Univ, Coll Tourism & Geog Sci, 778 Binhe Rd, Leshan 614000, Sichuan, Peoples R China
来源
BMC GENOMICS | 2024年 / 25卷 / 01期
关键词
Camellia oleifera; Dof gene family; Genome-wide identification; Molecular evolution; Collinearity analysis; TRANSCRIPTION FACTOR FAMILY; DNA-BINDING; WATER EXTRACT; PLANT; TEA; ARABIDOPSIS; DIVERSITY; PROTEINS; MAIZE; RICE;
D O I
10.1186/s12864-024-10622-6
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
DNA binding with one finger(Dof) gene family is a class of transcription factors which play an important role on plant growth and development. Genome-wide identification results indicated that there were 45 Dof genes(ColDof) in C.oleifera genome. All 45 ColDof proteins were non-transmembrane and non-secretory proteins. Phosphorylation site analysis showed that biological function of ColDof proteins were mainly realized by phosphorylation at serine (Ser) site. The secondary structure of 44 ColDof proteins was dominated by random coil, and only one ColDof protein was dominated by alpha-helix. ColDof genes' promoter region contained a variety of cis-acting elements, including light responsive regulators, gibberellin responsive regulators, abscisic acid responsive regulators, auxin responsive regulators and drought induction responsive regulators. The SSR sites analysis showed that the proportion of single nucleotide repeats and the frequency of A/T in ColDof genes were the largest. Non-coding RNA analysis showed that 45 ColDof genes contained 232 miRNAs. Transcription factor binding sites of ColDof genes showed that ColDof genes had 5793 ERF binding sites, 4381 Dof binding sites, 2206 MYB binding sites, 3702 BCR-BPC binding sites. ColDof9, ColDof39 and ColDof44 were expected to have the most TFBSs. The collinearity analysis showed that there were 40 colinear locis between ColDof proteins and AtDof proteins. Phylogenetic analysis showed that ColDof gene family was most closely related to that of Camellia sinensis var. sinensis cv.Biyun and Camellia lanceoleosa. Protein-protein interaction analysis showed that ColDof34, ColDof20, ColDof28, ColDof35, ColDof42 and ColDof26 had the most protein interactions. The transcriptome analysis of C. oleifera seeds showed that 21 ColDof genes were involved in the growth and development process of C. oleifera seeds, and were expressed in 221 C. oleifera varieties. The results of qRT-PCR experiments treated with different concentrations NaCl and PEG6000 solutions indicated that ColDof1, ColDof2, ColDof14 and ColDof36 not only had significant molecular mechanisms for salt stress tolerance, but also significant molecular functions for drought stress tolerance in C. oleifera. The results of this study provide a reference for further understanding of the function of ColDof genes in C.oleifera.
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页数:27
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