Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations
The genetic diversity of 277 nucleotides in the mitochondrial DNA control region (nt 15,964 to 16,240 in reference sequence) was analyzed in crossbreed beef cattle (Brangus-Ibage, 5/8 Bos primigenius taurus x 3/8 Bos primigenius indicus) as well as in some Nellore samples (B. p. indicus). Fifty-seve...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Genética
2005-03-01
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| Series: | Genetics and Molecular Biology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100011 |
| _version_ | 1819055054548631552 |
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| author | Luiz Ernani Henkes Wilson Araújo Silva Jr José Carlos Ferrugem Moraes Tania Azevedo Weimer |
| author_facet | Luiz Ernani Henkes Wilson Araújo Silva Jr José Carlos Ferrugem Moraes Tania Azevedo Weimer |
| author_sort | Luiz Ernani Henkes |
| collection | DOAJ |
| description | The genetic diversity of 277 nucleotides in the mitochondrial DNA control region (nt 15,964 to 16,240 in reference sequence) was analyzed in crossbreed beef cattle (Brangus-Ibage, 5/8 Bos primigenius taurus x 3/8 Bos primigenius indicus) as well as in some Nellore samples (B. p. indicus). Fifty-seven mutations were found in Brangus-Ibage comprising 18 haplotypes (haplotype diversity, h = 0.851 ± 0.041 and nucleotide diversity, ntd = 0.009 ± 0.006) and 66 in Nellore (h = 1.00 ± 0.27, ntd = 0.014 ± 0.012). These data indicated sequence identities of 99.6 and 92.1% between the B. p. taurus' reference sequence and Brangus-Ibage and Nellore, respectively. The comparison of our data with sequence data for 612 individuals recovered from GenBank showed a total of 205 haplotypes defined by 99 polymorphic sites. Most of the variability (53%) was due to differentiation within breeds. The phylogenetic tree constructed using the neighbor-joining method showed clearly the well-known dichotomy between B. p. taurus and B. p. indicus. The Brangus-Ibage clustered with B. p. taurus lineages; however, the displacement of Nellore from B. p. indicus branch probably indicates a substantial B. p. taurus maternal ancestry in some Nellore samples (obtained from GenBank) and reflects the primarily male-driven introduction of this breed in Brazil. |
| first_indexed | 2024-12-21T13:01:25Z |
| format | Article |
| id | doaj.art-e99aabe09d614bb1ba522fca7681721a |
| institution | Directory Open Access Journal |
| issn | 1415-4757 1678-4685 |
| language | English |
| last_indexed | 2024-12-21T13:01:25Z |
| publishDate | 2005-03-01 |
| publisher | Sociedade Brasileira de Genética |
| record_format | Article |
| series | Genetics and Molecular Biology |
| spelling | doaj.art-e99aabe09d614bb1ba522fca7681721a2022-12-21T19:03:10ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852005-03-01281606610.1590/S1415-47572005000100011Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populationsLuiz Ernani HenkesWilson Araújo Silva JrJosé Carlos Ferrugem MoraesTania Azevedo WeimerThe genetic diversity of 277 nucleotides in the mitochondrial DNA control region (nt 15,964 to 16,240 in reference sequence) was analyzed in crossbreed beef cattle (Brangus-Ibage, 5/8 Bos primigenius taurus x 3/8 Bos primigenius indicus) as well as in some Nellore samples (B. p. indicus). Fifty-seven mutations were found in Brangus-Ibage comprising 18 haplotypes (haplotype diversity, h = 0.851 ± 0.041 and nucleotide diversity, ntd = 0.009 ± 0.006) and 66 in Nellore (h = 1.00 ± 0.27, ntd = 0.014 ± 0.012). These data indicated sequence identities of 99.6 and 92.1% between the B. p. taurus' reference sequence and Brangus-Ibage and Nellore, respectively. The comparison of our data with sequence data for 612 individuals recovered from GenBank showed a total of 205 haplotypes defined by 99 polymorphic sites. Most of the variability (53%) was due to differentiation within breeds. The phylogenetic tree constructed using the neighbor-joining method showed clearly the well-known dichotomy between B. p. taurus and B. p. indicus. The Brangus-Ibage clustered with B. p. taurus lineages; however, the displacement of Nellore from B. p. indicus branch probably indicates a substantial B. p. taurus maternal ancestry in some Nellore samples (obtained from GenBank) and reflects the primarily male-driven introduction of this breed in Brazil.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100011bovine mtDNAmaternal lineagesequence analysisbeef cattlegenetic diversity |
| spellingShingle | Luiz Ernani Henkes Wilson Araújo Silva Jr José Carlos Ferrugem Moraes Tania Azevedo Weimer Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations Genetics and Molecular Biology bovine mtDNA maternal lineage sequence analysis beef cattle genetic diversity |
| title | Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations |
| title_full | Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations |
| title_fullStr | Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations |
| title_full_unstemmed | Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations |
| title_short | Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations |
| title_sort | mitochondrial control region genetic diversity and maternal ancestry of a brangus ibage cattle populations |
| topic | bovine mtDNA maternal lineage sequence analysis beef cattle genetic diversity |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100011 |
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