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Open Access Research article

Evolutionary patterns of two major reproduction candidate genes (Zp2 and Zp3) reveal no contribution to reproductive isolation between bovine species

Shanyuan Chen, Vânia Costa and Albano Beja-Pereira*

Author Affiliations

Centro de Investigação em Biodiversidade e Recursos Genéticos da Universidade do Porto (CIBIO/UP), Campus Agrário de Vairão, 4485-661 Vairão, Portugal

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BMC Evolutionary Biology 2011, 11:24  doi:10.1186/1471-2148-11-24

Published: 25 January 2011

Additional files

Additional file 1:

Sequence variation of 11 haplotypes of the Zp2 310-bp sequence fragment. The haplotype frequency for each species is listed in the right columns. Numbering of nucleotide sites follows the reference sequence of the Zp2 gene from base 1 to 11804 of NC_007326 (i.e., from base 20178291 to 20190094 on Bos taurus chromosome 25 [based on Btau_4.0]). The gray-shaded sites are located in coding regions. The abbreviations for species as follows: BTAU = Bos taurus (taurine cattle), BIND = Bos indicus (zebu cattle), BFRO = Bos frontalis (gayal), BGRU = Bos grunniens (yak), SCAF = Syncerus caffer (African buffalo), BBUB = Babalus bubalis (Water buffalo), BBON = Bison bonasus (wisent), OARI = Ovis aries (sheep), and CHIR = Capra hircus (goat).

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Open Data

Additional file 2:

Sequence variation of 20 haplotypes of the Zp3 279-bp sequence fragment. The haplotype frequency in each species is listed in the right columns. Numbering of nucleotide sites follows the reference sequence of the Zp3 gene from base 1 to 7732 of NC_007326 (i.e., from base 36581113 to 36588844 [based on Btau_4.0]). The gray-shaded sites are located in coding regions. The abbreviations for species are given in the Additional file 1.

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Open Data

Additional file 3:

Codon-based Z-test of purifying selection (dN < dS) for sequence pairs of the Zp2 coding haplotypes

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Open Data

Additional file 4:

Codon-based Z-test of purifying selection (dN < dS) for sequence pairs of the Zp3 coding haplotypes.

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Open Data

Additional file 5:

Supplementary methods on PAML analyses of mammalian Zp3 and Zp2 sequence data from GenBank database.

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Open Data

Additional file 6:

Likelihood ratio tests of codon-substitution models for mammalian Zp3 and Zp2 data from GenBank database.

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Open Data