GWAS and gene networks for milk-related traits from test-day multiple lactations in Portuguese Holstein cattle
This study focused on the identification of QTL regions, candidate genes, and network related genes based on the first 3 lactations (LAC3) of milk, fat, and protein yields, and somatic cell score (SCS) in Portuguese Holstein cattle. Additionally, the results were compared with those from only first lactation (LAC1) data. The analyses were performed using the weighted single-step GWAS under an autoregressive test-day (TD) multiple lactations model. A total of 11,434,294 and 4,725,673 TD records from LAC3 and LAC1, respectively, including 38,323 autosomal SNPs and 1338 genotyped animals were used in GWAS analyses. A total of 51 (milk), 5 (fat), 24 (protein), and 4 (SCS) genes were associated to previously annotated relevant QTL regions for LAC3. The CACNA2D1 at BTA4 explained the highest proportion of genetic variance respectively for milk, fat, and protein yields. For SCS, the TRNAG-CCC at BTA14, MAPK10, and PTPN3 genes, both at BTA6 were considered important candidate genes. The accessed network refined the importance of the reported genes. CACNA2D1 regulates calcium density and activation/inactivation kinetics of calcium transport in the mammary gland; whereas TRNAG-CCC, MAPK10, and PTPN3 are directly involved with inflammatory processes widely derived from mastitis. In conclusion, potential candidate genes (TRNAG-CCC, MAPK10, and PTPN3) associated with somatic cell were highlighted, which further validation studies are needed to clarify its mechanism action in response to mastitis. Moreover, most of the candidate genes identified were present in both (LAC3 and LAC1) for milk, fat and protein yields, except for SCS, in which no candidate genes were shared between LAC3 and LAC1. The larger phenotypic information provided by LAC3 dataset was more effective to identify relevant genes, providing a better understanding of the genetic architecture of these traits over all lactations simultaneously.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:61 |
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| Enthalten in: |
Journal of applied genetics - 61(2020), 3 vom: 30. Sept., Seite 465-476 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Silva, Alessandra Alves [VerfasserIn] |
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| Links: |
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| Themen: |
Gene function |
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| Anmerkungen: |
Date Completed 08.03.2021 Date Revised 07.12.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1007/s13353-020-00567-3 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM311857159 |
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| 100 | 1 | |a Silva, Alessandra Alves |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a GWAS and gene networks for milk-related traits from test-day multiple lactations in Portuguese Holstein cattle |
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| 520 | |a This study focused on the identification of QTL regions, candidate genes, and network related genes based on the first 3 lactations (LAC3) of milk, fat, and protein yields, and somatic cell score (SCS) in Portuguese Holstein cattle. Additionally, the results were compared with those from only first lactation (LAC1) data. The analyses were performed using the weighted single-step GWAS under an autoregressive test-day (TD) multiple lactations model. A total of 11,434,294 and 4,725,673 TD records from LAC3 and LAC1, respectively, including 38,323 autosomal SNPs and 1338 genotyped animals were used in GWAS analyses. A total of 51 (milk), 5 (fat), 24 (protein), and 4 (SCS) genes were associated to previously annotated relevant QTL regions for LAC3. The CACNA2D1 at BTA4 explained the highest proportion of genetic variance respectively for milk, fat, and protein yields. For SCS, the TRNAG-CCC at BTA14, MAPK10, and PTPN3 genes, both at BTA6 were considered important candidate genes. The accessed network refined the importance of the reported genes. CACNA2D1 regulates calcium density and activation/inactivation kinetics of calcium transport in the mammary gland; whereas TRNAG-CCC, MAPK10, and PTPN3 are directly involved with inflammatory processes widely derived from mastitis. In conclusion, potential candidate genes (TRNAG-CCC, MAPK10, and PTPN3) associated with somatic cell were highlighted, which further validation studies are needed to clarify its mechanism action in response to mastitis. Moreover, most of the candidate genes identified were present in both (LAC3 and LAC1) for milk, fat and protein yields, except for SCS, in which no candidate genes were shared between LAC3 and LAC1. The larger phenotypic information provided by LAC3 dataset was more effective to identify relevant genes, providing a better understanding of the genetic architecture of these traits over all lactations simultaneously | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Gene function | |
| 650 | 4 | |a Milk yield | |
| 650 | 4 | |a QTL regions | |
| 650 | 4 | |a SNP windows | |
| 650 | 4 | |a Somatic cells | |
| 700 | 1 | |a Silva, Delvan Alves |e verfasserin |4 aut | |
| 700 | 1 | |a Silva, Fabyano Fonseca |e verfasserin |4 aut | |
| 700 | 1 | |a Costa, Cláudio Napolis |e verfasserin |4 aut | |
| 700 | 1 | |a Silva, Hugo Teixeira |e verfasserin |4 aut | |
| 700 | 1 | |a Lopes, Paulo Sávio |e verfasserin |4 aut | |
| 700 | 1 | |a Veroneze, Renata |e verfasserin |4 aut | |
| 700 | 1 | |a Thompson, Gertrude |e verfasserin |4 aut | |
| 700 | 1 | |a Carvalheira, Julio |e verfasserin |4 aut | |
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