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Cloning and sequence analysis of Sox genes in a tetraploid cyprinid fish, Tor douronensis
Guo BaoCheng1,2; Li JunBing1,2; Tong ChaoBo1,2; He ShunPing1; He, SP, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2008-07-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume53Issue:13Pages:1988-1995
AbstractA PCR survey for Sox genes in a young tetraploid fish Tor douronensis (Teleostei: Cyprinidae) was performed to access the evolutionary fates of important functional genes after genome duplication caused by polyploidization event. Totally 13 Sox genes were obtained in Tor douronensis, which represent SoxB, SoxC and SoxE groups. Phylogenetic analysis of Sox genes in Tor douronensis provided evidence for fish-specific genome duplication, and suggested that Sox19 might be a teleost specific Sox gene member. Sequence analysis revealed most of the nucleotide substitutions between duplicated copies of Sox genes caused by tetraploidization event or their orthologues in other species are silent substitutions. It would appear that the sequences are under purifying selective pressure, strongly suggesting that they represent functional genes and supporting selection against all null allele at either of two duplicated loci of Sox4a, Sox9a and Sox9b. Surprising variations of the intron length and similarities of two duplicated copies of Sox9a and Sox9b, suggest that Tor douronensis might be an allotetraploidy.; A PCR survey for Sox genes in a young tetraploid fish Tor douronensis (Teleostei: Cyprinidae) was performed to access the evolutionary fates of important functional genes after genome duplication caused by polyploidization event. Totally 13 Sox genes were obtained in Tor douronensis, which represent SoxB, SoxC and SoxE groups. Phylogenetic analysis of Sox genes in Tor douronensis provided evidence for fish-specific genome duplication, and suggested that Sox19 might be a teleost specific Sox gene member. Sequence analysis revealed most of the nucleotide substitutions between duplicated copies of Sox genes caused by tetraploidization event or their orthologues in other species are silent substitutions. It would appear that the sequences are under purifying selective pressure, strongly suggesting that they represent functional genes and supporting selection against all null allele at either of two duplicated loci of Sox4a, Sox9a and Sox9b. Surprising variations of the intron length and similarities of two duplicated copies of Sox9a and Sox9b, suggest that Tor douronensis might be an allotetraploidy.
SubtypeArticle
KeywordTor Douronensis Sox Gene Tetraploidy Genome Duplication Gene Diversity
Department[Guo BaoCheng; Li JunBing; Tong ChaoBo; He ShunPing] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Guo BaoCheng; Li JunBing; Tong ChaoBo] Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China
Subject AreaMultidisciplinary Sciences
DOI10.1007/s11434-008-0277-6
WOS HeadingsScience & Technology
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000257327400011
WOS KeywordWHOLE-GENOME DUPLICATION ; RAY-FINNED FISHES ; EVOLUTION ; ZEBRAFISH ; FAMILY ; VERTEBRATES ; PUFFERFISH ; EXPRESSION ; DIVERSITY ; PATTERNS
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8080
Collection期刊论文
Corresponding AuthorHe, SP, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Guo BaoCheng,Li JunBing,Tong ChaoBo,et al. Cloning and sequence analysis of Sox genes in a tetraploid cyprinid fish, Tor douronensis[J]. CHINESE SCIENCE BULLETIN,2008,53(13):1988-1995.
APA Guo BaoCheng,Li JunBing,Tong ChaoBo,He ShunPing,&He, SP, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2008).Cloning and sequence analysis of Sox genes in a tetraploid cyprinid fish, Tor douronensis.CHINESE SCIENCE BULLETIN,53(13),1988-1995.
MLA Guo BaoCheng,et al."Cloning and sequence analysis of Sox genes in a tetraploid cyprinid fish, Tor douronensis".CHINESE SCIENCE BULLETIN 53.13(2008):1988-1995.
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