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Castaneda C, Radović L, Felkel S, Juras R, Davis BW, Cothran EG, Wallner B, Raudsepp T. Copy number variation of horse Y chromosome genes in normal equine populations and in horses with abnormal sex development and subfertility: relationship of copy number variations with Y haplogroups. G3 (BETHESDA, MD.) 2022; 12:jkac278. [PMID: 36227030 PMCID: PMC9713435 DOI: 10.1093/g3journal/jkac278] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 10/08/2022] [Indexed: 11/03/2023]
Abstract
Structural rearrangements like copy number variations in the male-specific Y chromosome have been associated with male fertility phenotypes in human and mouse but have been sparsely studied in other mammalian species. Here, we designed digital droplet PCR assays for 7 horse male-specific Y chromosome multicopy genes and SRY and evaluated their absolute copy numbers in 209 normal male horses of 22 breeds, 73 XY horses with disorders of sex development and/or infertility, 5 Przewalski's horses and 2 kulans. This established baseline copy number for these genes in horses. The TSPY gene showed the highest copy number and was the most copy number variable between individuals and breeds. SRY was a single-copy gene in most horses but had 2-3 copies in some indigenous breeds. Since SRY is flanked by 2 copies of RBMY, their copy number variations were interrelated and may lead to SRY-negative XY disorders of sex development. The Przewalski's horse and kulan had 1 copy of SRY and RBMY. TSPY and ETSTY2 showed significant copy number variations between cryptorchid and normal males (P < 0.05). No significant copy number variations were observed in subfertile/infertile males. Notably, copy number of TSPY and ETSTY5 differed between successive male generations and between cloned horses, indicating germline and somatic mechanisms for copy number variations. We observed no correlation between male-specific Y chromosome gene copy number variations and male-specific Y chromosome haplotypes. We conclude that the ampliconic male-specific Y chromosome reference assembly has deficiencies and further studies with an improved male-specific Y chromosome assembly are needed to determine selective constraints over horse male-specific Y chromosome gene copy number and their relation to stallion reproduction and male biology.
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Affiliation(s)
- Caitlin Castaneda
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 7784-4458, USA
| | - Lara Radović
- Department of Biomedical Sciences, Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna 1210, Austria
- Vienna Graduate School of Population Genetics, University of Veterinary Medicine Vienna, Vienna 1210, Austria
| | - Sabine Felkel
- Department of Biomedical Sciences, Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna 1210, Austria
- Vienna Graduate School of Population Genetics, University of Veterinary Medicine Vienna, Vienna 1210, Austria
- Department of Biotechnology, Institute of Computational Biology, BOKU University of Life Sciences and Natural Resources, Vienna 1190, Austria
| | - Rytis Juras
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 7784-4458, USA
| | - Brian W Davis
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 7784-4458, USA
| | - Ernest Gus Cothran
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 7784-4458, USA
| | - Barbara Wallner
- Department of Biomedical Sciences, Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna 1210, Austria
| | - Terje Raudsepp
- Department of Veterinary Integrative Biosciences, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 7784-4458, USA
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Signer-Hasler H, Henkel J, Bangerter E, Bulut Z, Drögemüller C, Leeb T, Flury C. Runs of homozygosity in Swiss goats reveal genetic changes associated with domestication and modern selection. Genet Sel Evol 2022; 54:6. [PMID: 35073837 PMCID: PMC8785455 DOI: 10.1186/s12711-022-00695-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 01/06/2022] [Indexed: 11/16/2022] Open
Abstract
Background The domestication of goat (Capra hircus) started 11,000 years ago in the fertile crescent. Breed formation in the nineteenth century, establishment of herd books, and selection for specific traits resulted in 10 modern goat breeds in Switzerland. We analyzed whole-genome sequencing (WGS) data from 217 modern goats and nine wild Bezoar goats (Capra aegagrus). After quality control, 27,728,288 biallelic single nucleotide variants (SNVs) were used for the identification of runs of homozygosity (ROH) and the detection of ROH islands. Results Across the 226 caprine genomes from 11 populations, we detected 344 ROH islands that harbor 1220 annotated genes. We compared the ROH islands between the modern breeds and the Bezoar goats. As a proof of principle, we confirmed a signature of selection, which contains the ASIP gene that controls several breed-specific coat color patterns. In two other ROH islands, we identified two missense variants, STC1:p.Lys139Arg and TSHR:p.Ala239Thr, which might represent causative functional variants for domestication signatures. Conclusions We have shown that the information from ROH islands using WGS data is suitable for the analysis of signatures of selection and allowed the detection of protein coding variants that may have conferred beneficial phenotypes during goat domestication. We hypothesize that the TSHR:p.Ala239Thr variant may have played a role in changing the seasonality of reproduction in modern domesticated goats. The exact functional significance of the STC1:p.Lys139Arg variant remains unclear and requires further investigation. Nonetheless, STC1 might represent a new domestication gene affecting relevant traits such as body size and/or milk yield in goats. Supplementary Information The online version contains supplementary material available at 10.1186/s12711-022-00695-w.
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Affiliation(s)
- Heidi Signer-Hasler
- School of Agricultural, Forest and Food Sciences, Bern University of Applied Sciences, 3052, Zollikofen, Switzerland.
| | - Jan Henkel
- Institute of Genetics, Vetsuisse Faculty, University of Bern, 3001, Bern, Switzerland
| | - Erika Bangerter
- Swiss Goat Breeding Association SZZV, Schützenstrasse 10, 3052, Zollikofen, Switzerland
| | - Zafer Bulut
- Department of Biochemistry, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
| | | | - Cord Drögemüller
- Institute of Genetics, Vetsuisse Faculty, University of Bern, 3001, Bern, Switzerland
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse Faculty, University of Bern, 3001, Bern, Switzerland
| | - Christine Flury
- School of Agricultural, Forest and Food Sciences, Bern University of Applied Sciences, 3052, Zollikofen, Switzerland
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Voronkova VN, Piskunov AK, Nikolaeva EA, Semina MT, Konorov EA, Stolpovsky YA. Haplotype Diversity of Mongolian and Tuvan Goat Breeds (Capra hircus) Based on mtDNA and Y-Chromosome Polymorphism. RUSS J GENET+ 2021. [DOI: 10.1134/s102279542110015x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Xiao C, Li J, Xie T, Chen J, Zhang S, Elaksher SH, Jiang F, Jiang Y, Zhang L, Zhang W, Xiang Y, Wu Z, Zhao S, Du X. The assembly of caprine Y chromosome sequence reveals a unique paternal phylogenetic pattern and improves our understanding of the origin of domestic goat. Ecol Evol 2021; 11:7779-7795. [PMID: 34188851 PMCID: PMC8216945 DOI: 10.1002/ece3.7611] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 03/30/2021] [Accepted: 04/06/2021] [Indexed: 02/05/2023] Open
Abstract
The mammalian Y chromosome offers a unique perspective on the male reproduction and paternal evolutionary histories. However, further understanding of the Y chromosome biology for most mammals is hindered by the lack of a Y chromosome assembly. This study presents an integrated in silico strategy for identifying and assembling the goat Y-linked scaffolds using existing data. A total of 11.5 Mb Y-linked sequences were clustered into 33 scaffolds, and 187 protein-coding genes were annotated. We also identified high abundance of repetitive elements. A 5.84 Mb subset was further ordered into an assembly with the evidence from the goat radiation hybrid map (RH map). The existing whole-genome resequencing data of 96 goats (worldwide distribution) were utilized to exploit the paternal relationships among bezoars and domestic goats. Goat paternal lineages were clearly divided into two clades (Y1 and Y2), predating the goat domestication. Demographic history analyses indicated that maternal lineages experienced a bottleneck effect around 2,000 YBP (years before present), after which goats belonging to the A haplogroup spread worldwide from the Near East. As opposed to this, paternal lineages experienced a population decline around the 10,000 YBP. The evidence from the Y chromosome suggests that male goats were not affected by the A haplogroup worldwide transmission, which implies sexually unbalanced contribution to the goat trade and population expansion in post-Neolithic period.
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Affiliation(s)
- Changyi Xiao
- College of InformaticsHuazhong Agricultural UniversityWuhanChina
| | - Jingjin Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Tanghui Xie
- College of InformaticsHuazhong Agricultural UniversityWuhanChina
| | - Jianhai Chen
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
- Institutes for Systems GeneticsFrontiers Science Center for Disease‐related Molecular NetworkWest China HospitalSichuan UniversityChengduChina
| | - Sijia Zhang
- College of InformaticsHuazhong Agricultural UniversityWuhanChina
| | - Salma Hassan Elaksher
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
- Genetics and Genetic Engineering DepartmentFaculty of AgricultureBenha UniversityMoshtohorEgypt
| | - Fan Jiang
- College of InformaticsHuazhong Agricultural UniversityWuhanChina
| | - Yaoxin Jiang
- College of InformaticsHuazhong Agricultural UniversityWuhanChina
| | - Lu Zhang
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Wei Zhang
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Yue Xiang
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Zhenyang Wu
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
- College of Agroforestry Engineering and PlanningTongren UniversityTongrenChina
| | - Shuhong Zhao
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
| | - Xiaoyong Du
- College of InformaticsHuazhong Agricultural UniversityWuhanChina
- Key Laboratory of Agricultural Animal Genetics, Breeding and ReproductionMinistry of EducationCollege of Animal Science and Veterinary MedicineHuazhong Agricultural UniversityWuhanChina
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An 8.22 Mb Assembly and Annotation of the Alpaca ( Vicugna pacos) Y Chromosome. Genes (Basel) 2021; 12:genes12010105. [PMID: 33467186 PMCID: PMC7830431 DOI: 10.3390/genes12010105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/07/2021] [Accepted: 01/14/2021] [Indexed: 12/26/2022] Open
Abstract
The unique evolutionary dynamics and complex structure make the Y chromosome the most diverse and least understood region in the mammalian genome, despite its undisputable role in sex determination, development, and male fertility. Here we present the first contig-level annotated draft assembly for the alpaca (Vicugna pacos) Y chromosome based on hybrid assembly of short- and long-read sequence data of flow-sorted Y. The latter was also used for cDNA selection providing Y-enriched testis transcriptome for annotation. The final assembly of 8.22 Mb comprised 4.5 Mb of male specific Y (MSY) and 3.7 Mb of the pseudoautosomal region. In MSY, we annotated 15 X-degenerate genes and two novel transcripts, but no transposed sequences. Two MSY genes, HSFY and RBMY, are multicopy. The pseudoautosomal boundary is located between SHROOM2 and HSFY. Comparative analysis shows that the small and cytogenetically distinct alpaca Y shares most of MSY sequences with the larger dromedary and Bactrian camel Y chromosomes. Most of alpaca X-degenerate genes are also shared with other mammalian MSYs, though WWC3Y is Y-specific only in alpaca/camels and the horse. The partial alpaca Y assembly is a starting point for further expansion and will have applications in the study of camelid populations and male biology.
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Dettori ML, Petretto E, Pazzola M, Vidal O, Amills M, Vacca GM. Assessing the Diversity and Population Substructure of Sarda Breed Bucks by Using Mtdna and Y-Chromosome Markers. Animals (Basel) 2020; 10:E2194. [PMID: 33255190 PMCID: PMC7761473 DOI: 10.3390/ani10122194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/21/2020] [Accepted: 11/22/2020] [Indexed: 11/16/2022] Open
Abstract
A sample of 146 Sarda bucks from eight subregions of Sardinia, Italy (Nuorese, Barbagia, Baronia, Ogliastra, Sarrabus, Guspinese, Iglesiente, Sulcis) were characterized for Y-chromosome and mtDNA markers to assess the levels of population substructure. Five polymorphic loci (SRY, AMELY, ZFY, and DDX3Y) on the Y-chromosome were genotyped. The control region of mtDNA was sequenced as a source of complementary information. Analysis of Y-chromosome data revealed the segregation of 5 haplotypes: Y1A (66.43%), Y2 (28.57%), Y1C (3.57%), Y1B1 (0.71%), and Y1B2 (0.71%). High levels of Y-chromosome diversity were observed in populations from Southwest Sardinia. The FST values based on Y-chromosome and mtDNA data were low, although a paternal genetic differentiation was observed when comparing the Nuorese and Barbagia populations (Central Sardinia) with the Sulcis, Iglesiente, and Sarrabus populations (Southern Sardinia). AMOVA analysis supported the lack of population substructure. These results suggest the occurrence of a historical and extensive gene flow between Sarda goat populations from different locations of Sardinia, despite the fact that this island is covered by several large mountain ranges. Introgression with foreign caprine breeds in order to improve milk production might have also contributed to avoiding the genetic differentiation amongst Sarda populations.
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Affiliation(s)
- Maria Luisa Dettori
- Department of Veterinary Medicine, University of Sassari, via Vienna 2, 07100 Sassari, Italy; (E.P.); (M.P.); (G.M.V.)
| | - Elena Petretto
- Department of Veterinary Medicine, University of Sassari, via Vienna 2, 07100 Sassari, Italy; (E.P.); (M.P.); (G.M.V.)
| | - Michele Pazzola
- Department of Veterinary Medicine, University of Sassari, via Vienna 2, 07100 Sassari, Italy; (E.P.); (M.P.); (G.M.V.)
| | - Oriol Vidal
- Departament de Biologia, Universitat de Girona, 17003 Girona, Spain;
| | - Marcel Amills
- Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Department of Animal Genetics, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain;
- Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Giuseppe Massimo Vacca
- Department of Veterinary Medicine, University of Sassari, via Vienna 2, 07100 Sassari, Italy; (E.P.); (M.P.); (G.M.V.)
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Robust DNase activity of the ooplasm can act as a gametic transfection barrier in rainbow trout. Theriogenology 2020; 142:62-66. [PMID: 31574402 DOI: 10.1016/j.theriogenology.2019.09.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 08/21/2019] [Accepted: 09/18/2019] [Indexed: 11/23/2022]
Abstract
In this study, we evaluated DNase activity of rainbow trout oocyte using an in vitro and in vivo study. First, synthetic single strand and natural double strand DNA from Eukaryotic and prokaryotic sources as well as naked DNA were in vitro incubated with the oocyte cytoplasm. Results showed that the DNase activity of rainbow trout oocyte is strong enough to degrade any type of DNA at the onset of the incubation. Then, we evaluated if similar to the mammalian species, dead spermatozoa from rainbow trout can protect exogenous DNA from oocyte DNases. A series of dead spermatozoa was incubated with pDB2, carrying EGFP transgene, for 30 min followed by the ooplasm treatment for an additional 30 min. Not only did oocyte DNases completely degrade the exogenous DNA, but also it degraded the compact genome of spermatozoa. In conclusion, in vitro results clearly showed that strong DNase activity of ooplasm could degrade any types of foreign DNAs including oligonucleotides and intensively compact sperm genome. The strong DNase activity of rainbow trout ooplasm could be a stumbling block for genetic modification using plasmids in salmonids.
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Tabata R, Kawaguchi F, Sasazaki S, Yamamoto Y, Rakotondraparany F, Ratsoavina FM, Yonezawa T, Mannen H. Phylogeographic Analysis of Madagascan Goats Using mtDNA Control Region and SRY Gene Sequences. Zoolog Sci 2019; 36:294-298. [DOI: 10.2108/zs180184] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 01/21/2019] [Indexed: 11/17/2022]
Affiliation(s)
- Risa Tabata
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Nada, Kobe 657-8501, Japan
| | - Fuki Kawaguchi
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Nada, Kobe 657-8501, Japan
| | - Shinji Sasazaki
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Nada, Kobe 657-8501, Japan
| | - Yoshio Yamamoto
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Felix Rakotondraparany
- Mention Zoologie et Biodiversité Animale, Faculty of Sciences, Antananarivo University, BP 906 Ankatso, Antananarivo 101, Madagascar
| | - Fanomezana Mihaja Ratsoavina
- Mention Zoologie et Biodiversité Animale, Faculty of Sciences, Antananarivo University, BP 906 Ankatso, Antananarivo 101, Madagascar
| | - Takahiro Yonezawa
- Faculty of Agriculture, Tokyo University of Agriculture, 1737 Funako, Atsugi, Kanagawa 243-0034, Japan
| | - Hideyuki Mannen
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Nada, Kobe 657-8501, Japan
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Felkel S, Vogl C, Rigler D, Dobretsberger V, Chowdhary BP, Distl O, Fries R, Jagannathan V, Janečka JE, Leeb T, Lindgren G, McCue M, Metzger J, Neuditschko M, Rattei T, Raudsepp T, Rieder S, Rubin CJ, Schaefer R, Schlötterer C, Thaller G, Tetens J, Velie B, Brem G, Wallner B. The horse Y chromosome as an informative marker for tracing sire lines. Sci Rep 2019; 9:6095. [PMID: 30988347 PMCID: PMC6465346 DOI: 10.1038/s41598-019-42640-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 04/04/2019] [Indexed: 12/31/2022] Open
Abstract
Analysis of the Y chromosome is the best-established way to reconstruct paternal family history in humans. Here, we applied fine-scaled Y-chromosomal haplotyping in horses with biallelic markers and demonstrate the potential of our approach to address the ancestry of sire lines. We de novo assembled a draft reference of the male-specific region of the Y chromosome from Illumina short reads and then screened 5.8 million basepairs for variants in 130 specimens from intensively selected and rural breeds and nine Przewalski's horses. Among domestic horses we confirmed the predominance of a young'crown haplogroup' in Central European and North American breeds. Within the crown, we distinguished 58 haplotypes based on 211 variants, forming three major haplogroups. In addition to two previously characterised haplogroups, one observed in Arabian/Coldblooded and the other in Turkoman/Thoroughbred horses, we uncovered a third haplogroup containing Iberian lines and a North African Barb Horse. In a genealogical showcase, we distinguished the patrilines of the three English Thoroughbred founder stallions and resolved a historic controversy over the parentage of the horse 'Galopin', born in 1872. We observed two nearly instantaneous radiations in the history of Central and Northern European Y-chromosomal lineages that both occurred after domestication 5,500 years ago.
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Affiliation(s)
- Sabine Felkel
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
- Vienna Graduate School of Population Genetics, Vienna, Austria
| | - Claus Vogl
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Doris Rigler
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Viktoria Dobretsberger
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | | | - Ottmar Distl
- Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Hannover, 30559, Germany
| | - Ruedi Fries
- Lehrstuhl fuer Tierzucht, Technische Universitaet Muenchen, Freising, 85354, Germany
| | - Vidhya Jagannathan
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, 3001, Switzerland
| | - Jan E Janečka
- Department of Biological Sciences, Duquesne University, Pittsburgh, 15282, USA
| | - Tosso Leeb
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, 3001, Switzerland
| | - Gabriella Lindgren
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, 75007, Sweden
- Department of Biosystems, KU Leuven, Leuven, 3001, Belgium
| | - Molly McCue
- Veterinary Population Medicine Department, University of Minnesota, St. Paul, MN, 55108, USA
| | - Julia Metzger
- Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Hannover, 30559, Germany
| | | | - Thomas Rattei
- Department of Microbiology and Ecosystem Science, Division of Computational Systems Biology, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
| | - Terje Raudsepp
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, 77843-4458, USA
| | - Stefan Rieder
- Agroscope, Swiss National Stud Farm, Avenches, 1580, Switzerland
| | - Carl-Johan Rubin
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, 75123, Sweden
| | - Robert Schaefer
- Agroscope, Swiss National Stud Farm, Avenches, 1580, Switzerland
| | - Christian Schlötterer
- Institut fuer Populationsgenetik, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Georg Thaller
- Institute of Animal Breeding and Husbandry, University of Kiel, Kiel, 24098, Germany
| | - Jens Tetens
- Institute of Animal Breeding and Husbandry, University of Kiel, Kiel, 24098, Germany
- Functional Breeding Group, Department of Animal Sciences, Georg-August-University Göttingen, Göttingen, 37077, Germany
| | - Brandon Velie
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, 75007, Sweden
- School of Life and Environmental Sciences, University of Sydney, Sydney, 2006, Australia
| | - Gottfried Brem
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria
| | - Barbara Wallner
- Institute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, 1210, Austria.
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