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Ramos Z, Garrick DJ, Blair HT, Vera B, Ciappesoni G, Kenyon PR. Genomic Regions Associated with Wool, Growth and Reproduction Traits in Uruguayan Merino Sheep. Genes (Basel) 2023; 14:167. [PMID: 36672908 PMCID: PMC9858812 DOI: 10.3390/genes14010167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 12/29/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
The aim of this study was to identify genomic regions and genes associated with the fiber diameter (FD), clean fleece weight (CFW), live weight (LW), body condition score (BCS), pregnancy rate (PR) and lambing potential (LP) of Uruguayan Merino sheep. Phenotypic records of approximately 2000 mixed-age ewes were obtained from a Merino nucleus flock. Genome-wide association studies were performed utilizing single-step Bayesian analysis. For wool traits, a total of 35 genomic windows surpassed the significance threshold (PVE ≥ 0.25%). The proportion of the total additive genetic variance explained by those windows was 4.85 and 9.06% for FD and CFW, respectively. There were 42 windows significantly associated with LWM, which collectively explained 43.2% of the additive genetic variance. For BCS, 22 relevant windows accounted for more than 40% of the additive genetic variance, whereas for the reproduction traits, 53 genomic windows (24 and 29 for PR and LP, respectively) reached the suggestive threshold of 0.25% of the PVE. Within the top 10 windows for each trait, we identified several genes showing potential associations with the wool (e.g., IGF-1, TGFB2R, PRKCA), live weight (e.g., CAST, LAP3, MED28, HERC6), body condition score (e.g., CDH10, TMC2, SIRPA, CPXM1) or reproduction traits (e.g., ADCY1, LEPR, GHR, LPAR2) of the mixed-age ewes.
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Affiliation(s)
- Zully Ramos
- School of Agriculture and Environment, Massey University, Palmerston North 4410, New Zealand
| | - Dorian J. Garrick
- School of Agriculture and Environment, Massey University, Palmerston North 4410, New Zealand
| | - Hugh T. Blair
- School of Agriculture and Environment, Massey University, Palmerston North 4410, New Zealand
| | - Brenda Vera
- National Research Program on Meat and Wool Production, Instituto Nacional de Investigación Agropecuaria, INIA Las Brujas, Ruta 48 Km 10, Canelones 90100, Uruguay
| | - Gabriel Ciappesoni
- National Research Program on Meat and Wool Production, Instituto Nacional de Investigación Agropecuaria, INIA Las Brujas, Ruta 48 Km 10, Canelones 90100, Uruguay
| | - Paul R. Kenyon
- School of Agriculture and Environment, Massey University, Palmerston North 4410, New Zealand
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Lakhssassi K, Serrano M, Lahoz B, Sarto MP, Iguácel LP, Folch J, Alabart JL, Calvo JH. The LEPR Gene Is Associated with Reproductive Seasonality Traits in Rasa Aragonesa Sheep. Animals (Basel) 2020; 10:ani10122448. [PMID: 33371230 PMCID: PMC7766475 DOI: 10.3390/ani10122448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 01/23/2023] Open
Abstract
The aim of this study was to characterize and identify causative polymorphisms in the leptin receptor (LEPR) gene responsible for the seasonal variation of reproductive traits in sheep. Three reproductive seasonality traits were studied: the total days of anoestrous (TDA), the progesterone cycling months (P4CM) and the oestrous cycling months (OCM). In total, 18 SNPs were detected in 33 ewes with extreme values for TDA and OCM. Six SNPs were non-synonymous substitutions and two of them were predicted in silico as deleterious: rs596133197 and rs403578195. These polymorphisms were then validated in 239 ewes. The SNP rs403578195, located in exon 8 and leading to a change of alanine to glycine (Ala284Gly) in the extracellular domain of the protein, was associated with the OCM trait, being the G allele associated with a decrease of 12 percent of the OCM trait. Haplotype analyses also suggested the involvement of other non-synonymous SNP located in exon 20 (rs405459906). This SNP also produces an amino acid change (Lys1069Glu) in the intracellular domain of the protein and segregates independently of rs403578195. These results confirm for the first time the role of the LEPR gene in sheep reproductive seasonality.
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Affiliation(s)
- Kenza Lakhssassi
- Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón (IA2), CITA–Zaragoza University, 50059 Zaragoza, Spain; (K.L.); (B.L.); (M.P.S.); (L.P.I.); (J.F.); (J.L.A.)
| | - Malena Serrano
- Departamento de Mejora Genética Animal INIA, 28040 Madrid, Spain;
| | - Belén Lahoz
- Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón (IA2), CITA–Zaragoza University, 50059 Zaragoza, Spain; (K.L.); (B.L.); (M.P.S.); (L.P.I.); (J.F.); (J.L.A.)
| | - María Pilar Sarto
- Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón (IA2), CITA–Zaragoza University, 50059 Zaragoza, Spain; (K.L.); (B.L.); (M.P.S.); (L.P.I.); (J.F.); (J.L.A.)
| | - Laura Pilar Iguácel
- Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón (IA2), CITA–Zaragoza University, 50059 Zaragoza, Spain; (K.L.); (B.L.); (M.P.S.); (L.P.I.); (J.F.); (J.L.A.)
| | - José Folch
- Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón (IA2), CITA–Zaragoza University, 50059 Zaragoza, Spain; (K.L.); (B.L.); (M.P.S.); (L.P.I.); (J.F.); (J.L.A.)
| | - José Luis Alabart
- Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón (IA2), CITA–Zaragoza University, 50059 Zaragoza, Spain; (K.L.); (B.L.); (M.P.S.); (L.P.I.); (J.F.); (J.L.A.)
| | - Jorge Hugo Calvo
- Centro de Investigación y Tecnología Agroalimentaria de Aragón, Instituto Agroalimentario de Aragón (IA2), CITA–Zaragoza University, 50059 Zaragoza, Spain; (K.L.); (B.L.); (M.P.S.); (L.P.I.); (J.F.); (J.L.A.)
- ARAID, 50018 Zaragoza, Spain
- Correspondence: ; Tel.: +34-976-716-471
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Macedo TJS, Santos JMS, Bezerra MÉS, Menezes VG, Gouveia BB, Barbosa LMR, Lins TLBG, Monte APO, Barberino RS, Batista AM, Barros VRP, Wischral A, Queiroz MAA, Araújo GGL, Matos MHT. Immunolocalization of leptin and its receptor in the sheep ovary and in vitro effect of leptin on follicular development and oocyte maturation. Mol Cell Endocrinol 2019; 495:110506. [PMID: 31295510 DOI: 10.1016/j.mce.2019.110506] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/22/2019] [Accepted: 07/06/2019] [Indexed: 01/10/2023]
Abstract
The aims of the study were to characterize leptin and it is receptor (LEPR) proteins immunoexpression in ovine ovaries and to evaluate the effects of leptin on development of secondary follicles cultured in vitro. The ovaries were collected and fixed for immunohistochemical analysis. Additional pairs of ovaries were collected and secondary follicles were isolated and cultured, for 18 days, in α-MEM+ alone or supplemented with 10 or 25 ng/mL of leptin. The antrum formation and fully grown oocytes rates were higher in 25 ng/mL leptin than all treatments. GSH levels and mitochondrial activity were higher in 10 or 25 ng/mL leptin than α-MEM+. 25 ng/mL leptin showed a higher percentage of MII than the α-MEM+. In conclusion, leptin and its receptor are expressed in ovine ovaries and 25 ng/mL leptin promoted higher in vitro maturation rates by improving follicular development, GSH levels and mitochondrial activity of ovine oocytes compared to control medium.
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Affiliation(s)
- Taís Jobard S Macedo
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Jamile Maiara S Santos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Maria Éllida S Bezerra
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Vanúzia G Menezes
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Bruna B Gouveia
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Lara Mariane R Barbosa
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Thae Lane Barbosa G Lins
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Alane Pains O Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Ricássio S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - André M Batista
- Laboratory of Animal Reproduction, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | - Vanessa Raquel P Barros
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - Aurea Wischral
- Laboratory of Animal Reproduction, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | - Mário Adriano A Queiroz
- Laboratory of Bromatology and Animal Nutrition, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | | | - Maria Helena T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil.
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Menezes VG, Monte APO, Gouveia BB, Lins TLBG, Donfack NJ, Macedo TJS, Barberino RS, Santos JM, Matos MHT, Batista AM, Wischral A. Effects of leptin on the follicular development and mitochondrial activity of ovine isolated early antral follicles cultured in vitro. Theriogenology 2019; 138:77-83. [PMID: 31302434 DOI: 10.1016/j.theriogenology.2019.07.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 12/21/2022]
Abstract
This study evaluated the effect of leptin on the in vitro culture of isolated sheep early antral follicles. Early antral follicles (300-450 μm) were isolated and cultured for 12 days in tissue culture medium 199 (TCM 199) supplemented with glutamine, hypoxanthine, transferrin, insulin, selenium, ascorbic acid, bovine serum albumin (BSA) and recombinant follicle stimulating hormone (rFSH) (TCM 199+: control medium) or TCM 199+ supplemented with 2 or 10 ng/mL leptin. After culture, oocytes were subjected to in vitro maturation (IVM). The parameters analyzed were morphology, extrusion rate, follicular diameter, growth and fully-grown oocytes (oocytes ≥110 μm) rates. After IVM, reactive oxygen species (ROS) levels, mitochondrial activity, meiotic stages and meiotic resumption rates were also analyzed. After 12 days of culture, the concentration of 2 ng/mL of leptin showed a higher percentage of morphologically normal follicles, fully-grown oocytes (≥110 μm), active mitochondria and meiotic resumption compared to the control medium (TCM 199+; P < 0.05) but did not differ when compared to leptin concentration of 10 ng/mL (P > 0.05). After culturing, no significant differences existed among treatments in terms of the follicle diameter and ROS levels. In conclusion, the addition of 2 ng/mL leptin to the base culture medium is capable of improving follicular survival, oocyte growth, mitochondrial activity and meiotic resumption after the in vitro culture of isolated sheep early antral follicles.
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Affiliation(s)
- V G Menezes
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil.
| | - A P O Monte
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - B B Gouveia
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - T L B G Lins
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - N J Donfack
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - T J S Macedo
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - R S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - J M Santos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - M H T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, Petrolina, PE, Brazil
| | - A M Batista
- Department of Veterinary Medicine, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | - A Wischral
- Department of Veterinary Medicine, Federal Rural University of Pernambuco, Recife, PE, Brazil
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Xi L, Liu Y, Tang Z, Sheng X, Zhang H, Weng Q, Xu M. Expression of leptin receptor in the oviduct of Chinese brown frog (Rana dybowskii). Am J Physiol Regul Integr Comp Physiol 2017; 312:R912-R918. [DOI: 10.1152/ajpregu.00020.2017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 02/20/2017] [Accepted: 03/09/2017] [Indexed: 11/22/2022]
Abstract
The oviduct of Chinese brown frog ( Rana dybowskii) expands specifically during prehibernation instead of in the breeding period. In this study, we investigated the expression of leptin receptor (Ob-Rb) in Rana dybowskii oviduct during the breeding period and prehibernation. Histologically, the oviduct of Rana dybowskii consists of glandular cells, tubule lumen, and epithelial cells. The oviductal weight and pipe diameter also revealed significant differences, which were higher in prehibernation than that of the breeding period. Ob-Rb was observed in stromal cells of oviductal tissue in both the breeding period and prehibernation. The mean protein and mRNA levels of the Ob-Rb were significantly higher in prehibernation as compared with the breeding period. In addition, oviductal content of leptin was also higher in prehibernation than that of the breeding period. These results suggested that oviduct of Rana dybowskii might be a target organ of leptin, and leptin may play an autocrine/paracrine role mediated by Ob-Rb in regulating the oviductal hypertrophy during prehibernation.
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Affiliation(s)
- Liqin Xi
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, People's Republic of China; and
| | - Yuning Liu
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, People's Republic of China; and
| | - Zeqi Tang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, People's Republic of China; and
| | - Xia Sheng
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - Haolin Zhang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, People's Republic of China; and
| | - Qiang Weng
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, People's Republic of China; and
| | - Meiyu Xu
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, People's Republic of China; and
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