Journal article
Sequence Analysis of the ZFY and Sox Genes in the Turtle, Chelydra serpentina
Molecular phylogenetics and evolution, v 3(1), pp 1-9
Mar 1994
PMID: 8025725
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Abstract
We have sequenced regions of the ZFY and Sox genes in the turtle Chelydra serpentina, a reptile with temperature-dependent sex determination. The FY gene in mammals encodes a transcription factor with multiple zinc fingers that may be involved in spermatogenesis as well as other processes. The turtle homologue, Zft, is 92% identical to the ZFY gene at the nucleotide and amino acid levels in the region of zinc fingers 7-12. There are several Sox genes in the turtle that are only 57-70% identical at the nucleotide level and about 55% identical at the amino acid level to the human sex-determining SRY gene. However, the turtle Sox genes, termed TSox, have the conserved motif called the HMG-box (for high mobility group DNA-binding protein) that defines a probable DNA-binding region, and thus are in the same gene family as the Sox genes of other organisms from Drosophila to man. One TSox sequence is identical at the amino acid level to a sequence found in birds, and is 98% identical to a sequence encoded autosomally in mouse and in man. The extent of sequence conservation among the Sox genes suggests that some of their functions may be conserved. Phylogenetic analysis of available Sox sequences including SRY (Sry) sequences suggests that there was a high degree of divergence between any possible immediate common ancestor of the turtle Sox sequences and the SRY (Sry) sequences.
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Details
- Title
- Sequence Analysis of the ZFY and Sox Genes in the Turtle, Chelydra serpentina
- Creators
- Loretta D. Spotila - Jefferson InstituteNorbert F. KauferEdward TheriotKathleen M. RyanDavid PenickJames R. Spotila
- Publication Details
- Molecular phylogenetics and evolution, v 3(1), pp 1-9
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1994ND32400001
- Scopus ID
- 2-s2.0-0028397984
- Other Identifier
- 991019173746204721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Biochemistry & Molecular Biology
- Evolutionary Biology
- Genetics & Heredity