Evolution of the monotremes : The sequences of the protamine P1 genes of platypus and echidna
โ Scribed by Jacques D. RETIEF; Robert J. WINKFEIN; Gordon H. DIXON
- Book ID
- 115130382
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 536 KB
- Volume
- 218
- Category
- Article
- ISSN
- 1432-1327
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We report the complete DNA sequences of the protamine P1 gene and flanking regions for 13 species of the marsupial family Dasyuridae. The structure of the protamine locus is conserved in dasyurids and consists of two exons (of lengths 142-151 and 47 bp) separated by an intron (208-240 bp). A key fea
The identification of the sex chromosomes in the three extant species of Prototherian mammals (the monotremes) is complicated by their involvement in a multivalent translocation chain at the first division of male meiosis. The platypus X chromosome, identified by the presence of two copies in female