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Molecular basis of transferrin polymorphism in goldfish (Carassius auratus)
Yang, L; Zhou, L; Gui, JF; Gui, JF, Chinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2004-07-01
Source PublicationGENETICA
ISSN0016-6707
Volume121Issue:3Pages:303-313
AbstractTransferrin (TF) polymorphism was investigated in a color variety of goldfish (Carassius auratus), and its molecular basis analyzed. Three TF variants (A(1), A(2) and B-1) were identified from an inbred strain of the goldfish, of which A(1) and B-1 displayed a large electrophoretic difference on both native and SDS-PAGE gels. The TF cDNAs corresponding to variants A(1) and B-1 were cloned and sequenced from A(1)A(1), A(1)B(1) and B1B1 individuals, and their deduced amino acid sequences were analyzed. Substantial amino acid variation occurred between variants A(1) and B-1, with significant differences in peptide length, theoretical molecular weight (Mw) and isoelectric point (pI). No potential glycosylation sites were observed in the two amino acid sequences, which excluded the possibility that carbohydrate difference might cause electrophoretic variation among the TF variants. Further analysis suggested that the distinct electrophoretic mobility of the two variants A(1) and B-1 by SDS-PAGE resulted from their Mw difference, while the difference by the native PAGE could be explained by their pI variation. Furthermore, genomic DNA fragments containing the transferrin alleles were amplified and subjected to RFLP analysis in A(1)A(1), A(1)B(1) and B1B1 individuals. The data revealed characteristic banding patterns for each TF genotype, and demonstrated that the TF alleles A(1) and B-1 could be used as a co-dominant marker system. The initial work relating to the goldfish TF variants will benefit the understanding of the evolutionary and functional significance of TF polymorphism in fish.; Transferrin (TF) polymorphism was investigated in a color variety of goldfish (Carassius auratus), and its molecular basis analyzed. Three TF variants (A(1), A(2) and B-1) were identified from an inbred strain of the goldfish, of which A(1) and B-1 displayed a large electrophoretic difference on both native and SDS-PAGE gels. The TF cDNAs corresponding to variants A(1) and B-1 were cloned and sequenced from A(1)A(1), A(1)B(1) and B1B1 individuals, and their deduced amino acid sequences were analyzed. Substantial amino acid variation occurred between variants A(1) and B-1, with significant differences in peptide length, theoretical molecular weight (Mw) and isoelectric point (pI). No potential glycosylation sites were observed in the two amino acid sequences, which excluded the possibility that carbohydrate difference might cause electrophoretic variation among the TF variants. Further analysis suggested that the distinct electrophoretic mobility of the two variants A(1) and B-1 by SDS-PAGE resulted from their Mw difference, while the difference by the native PAGE could be explained by their pI variation. Furthermore, genomic DNA fragments containing the transferrin alleles were amplified and subjected to RFLP analysis in A(1)A(1), A(1)B(1) and B1B1 individuals. The data revealed characteristic banding patterns for each TF genotype, and demonstrated that the TF alleles A(1) and B-1 could be used as a co-dominant marker system. The initial work relating to the goldfish TF variants will benefit the understanding of the evolutionary and functional significance of TF polymorphism in fish.
SubtypeArticle
KeywordAllele Amino Acid Substitution Goldfish Polymorphism Transferrin
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Subject AreaGenetics & Heredity
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaGenetics & Heredity
WOS SubjectGenetics & Heredity
WOS IDWOS:000223623200010
WOS KeywordSILVER CRUCIAN CARP ; MEIOTIC CHROMOSOME BEHAVIOR ; GIBELIO BLOCH ; SERUM TRANSFERRIN ; EQUINE TRANSFERRIN ; GENE ; SEQUENCE ; CLONES ; HETEROGENEITY ; DIVERSITY
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Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9436
Collection期刊论文
Corresponding AuthorGui, JF, Chinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
AffiliationChinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Yang, L,Zhou, L,Gui, JF,et al. Molecular basis of transferrin polymorphism in goldfish (Carassius auratus)[J]. GENETICA,2004,121(3):303-313.
APA Yang, L,Zhou, L,Gui, JF,&Gui, JF, Chinese Acad Sci, Inst Hydrobiol, Wuhan Ctr Dev Biol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2004).Molecular basis of transferrin polymorphism in goldfish (Carassius auratus).GENETICA,121(3),303-313.
MLA Yang, L,et al."Molecular basis of transferrin polymorphism in goldfish (Carassius auratus)".GENETICA 121.3(2004):303-313.
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