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Larruskain A, Minguijón E, Arostegui I, Moreno B, Juste R, Jugo B. Microsatellites in immune-relevant regions and their associations with Maedi-Visna and ovine pulmonary adenocarcinoma viral diseases. Vet Immunol Immunopathol 2012; 145:438-46. [DOI: 10.1016/j.vetimm.2011.12.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Revised: 11/22/2011] [Accepted: 12/23/2011] [Indexed: 12/01/2022]
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Zemanová B, Hájková P, Bryja J, Zima J, Hájková A, Zima J. Development of multiplex microsatellite sets for noninvasive population genetic study of the endangered Tatra chamois. FOLIA ZOOLOGICA 2011. [DOI: 10.25225/fozo.v60.i1.a11.2011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Barbora Zemanová
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, v.v.i., Department of Population Biology, Květná 8, 603 65 Brno, Czech Republic; e-mails: , , , , ,
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Petra Hájková
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, v.v.i., Department of Population Biology, Květná 8, 603 65 Brno, Czech Republic; e-mails: , , , , ,
| | - Josef Bryja
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, v.v.i., Department of Population Biology, Květná 8, 603 65 Brno, Czech Republic; e-mails: , , , , ,
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Jan Zima
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, v.v.i., Department of Population Biology, Květná 8, 603 65 Brno, Czech Republic; e-mails: , , , , ,
- Department of Zoology, Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Andrea Hájková
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, v.v.i., Department of Population Biology, Květná 8, 603 65 Brno, Czech Republic; e-mails: , , , , ,
- Department of Zoology, Faculty of Science, Charles University, Viničná 7, 128 44 Prague, Czech Republic
| | - Jan Zima
- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, v.v.i., Department of Population Biology, Květná 8, 603 65 Brno, Czech Republic; e-mails: , , , , ,
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Poissant J, Shafer ABA, Davis CS, Mainguy J, Hogg JT, Côté SD, Coltman DW. Genome-wide cross-amplification of domestic sheep microsatellites in bighorn sheep and mountain goats. Mol Ecol Resour 2009; 9:1121-6. [PMID: 21564850 DOI: 10.1111/j.1755-0998.2009.02575.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We tested for cross-species amplification of microsatellite loci located throughout the domestic sheep (Ovis aries) genome in two north American mountain ungulates (bighorn sheep, Ovis canadensis, and mountain goats, Oreamnos americanus). We identified 247 new polymorphic markers in bighorn sheep (≥ 3 alleles in one of two study populations) and 149 in mountain goats (≥ 2 alleles in a single study population) using 648 and 576 primer pairs, respectively. Our efforts increased the number of available polymorphic microsatellite markers to 327 for bighorn sheep and 180 for mountain goats. The average distance between successive polymorphic bighorn sheep and mountain goat markers inferred from the Australian domestic sheep genome linkage map (mean ± 1 SD) was 11.9 ± 9.2 and 15.8 ± 13.8 centimorgans, respectively. The development of genomic resources in these wildlife species enables future studies of the genetic architecture of trait variation.
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Affiliation(s)
- J Poissant
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada T6G 2E9.
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Worley K, Carey J, Veitch A, Coltman DW. Detecting the signature of selection on immune genes in highly structured populations of wild sheep (Ovis dalli). Mol Ecol 2006; 15:623-37. [PMID: 16499690 DOI: 10.1111/j.1365-294x.2006.02829.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The confounding effects of population structure complicate efforts to identify regions of the genome under the influence of selection in natural populations. Here we test for evidence of selection in three genes involved in vertebrate immune function - the major histocompatibility complex (MHC), interferon gamma (IFNG) and natural resistance associated macrophage polymorphism (NRAMP) - in highly structured populations of wild thinhorn sheep (Ovis dalli). We examined patterns of variation at microsatellite loci linked to these gene regions and at the DNA sequence level. Simple Watterson's tests indicated balancing selection at all three gene regions. However, evidence for selection was confounded by population structure, as the Watterson's test statistics from linked markers were not outside of the range of values from unlinked and presumably neutral microsatellites. The translated coding sequences of thinhorn IFNG and NRAMP are fixed and identical to those of domestic sheep (Ovis aries). In contrast, the thinhorn MHC DRB locus shows significant evidence of overdominance through both an excess of nonsynonymous substitution and trans-species polymorphism. The failure to detect balancing selection at microsatellite loci linked to the MHC is likely the result of recombination between the markers and expressed gene regions.
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Affiliation(s)
- K Worley
- Department of Animal and Plant Sciences, University of Sheffield, UK.
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Winder LM, Phillips CB, Lenney-Williams C, Cane RP, Paterson K, Vink CJ, Goldson SL. Microsatellites and 16S sequences corroborate phenotypic evidence of trans-Andean variation in the parasitoid Microctonus hyperodae (Hymenoptera: Braconidae). BULLETIN OF ENTOMOLOGICAL RESEARCH 2005; 95:289-98. [PMID: 16048676 DOI: 10.1079/ber2005359] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Eight South American geographical populations of the parasitoid Microctonus hyperodae Loan were collected in South America (Argentina, Brazil, Chile and Uruguay) and released in New Zealand for biological control of the weevil Listronotus bonariensis (Kuschel), a pest of pasture grasses and cereals. DNA sequencing (16S, COI, 28S, ITS1, beta-tubulin), RAPD, AFLP, microsatellite, SSCP and RFLP analyses were used to seek markers for discriminating between the South American populations. All of the South American populations were more homogeneous than expected. However, variation in microsatellites and 16S gene sequences corroborated morphological, allozyme and other phenotypic evidence of trans-Andes variation between the populations. The Chilean populations were the most genetically variable, while the variation present on the eastern side of the Andes mountains was a subset of that observed in Chile.
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Affiliation(s)
- L M Winder
- AgResearch Limited, Biocontrol and Biosecurity Group, PO Box 60, Gerald Street, Lincoln, Canterbury, New Zealand.
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Schmidt P, Kühn C, Maillard JC, Pitra C, Tiemann U, Weikard R, Schwerin M. A comprehensive survey for polymorphisms in the bovine IFN-gamma gene reveals a highly polymorphic intronic DNA sequence allowing improved genotyping of Bovinae. J Interferon Cytokine Res 2002; 22:923-34. [PMID: 12396714 DOI: 10.1089/10799900260286632] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
This study aimed to identify interferon-gamma (IFN-gamma) gene variants in cattle for diagnostic purposes. Therefore, the entire bovine IFN-gamma gene (BoIFNG) and 2605 bp of its promoter DNA were sequenced. The BoIFNG DNA sequence conforms to the published part of Bo-IFN-gamma cDNA. Primer extension experiments show the presence of a 5' extension of exon 1 by 42 nucleotides (nt). One SINE element (Bov-A2) is located in the 5'-region, and two SINE elements (Bov-tA, Bov-B) are contained in the 3'-region of BoIFNG. The variants were detected by comparative sequence analysis of PCR amplicons from different bovine species. Four polymorphic mononucleotide repeats are situated in the promoter and in intron 1. Four distinct series of single nucleotide polymorphisms (SNP) were found in functionally important regions of BoIFNG. The region between the two intron 1 microsatellites contains the highest density of SNPs in Bos taurus breeds. One G-T transversion in the coding region of exon 1 causes a Gly(14) to Val(14) exchange in the BoIFNG signal peptide of different bovine species. A G-A transition in exon 2 encodes a Ser(19) to Asn(19) change in the mature protein of the Tibetan yak. Genotyping of randomly sampled Holstein Friesian cows at selected SNPs and of both intron 1 microsatellites revealed two dominant BoIFNG microhaplotypes. The detected SNPs improve the recently reported genotyping system of cattle.
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Affiliation(s)
- Peter Schmidt
- Research Unit of Molecular Biology of the Research Institute for the Biology of Farm Animals, 18196 Dummerstorf, Germany.
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