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Abd Al-Jabar WA, Al-Thuwaini TM. Variation in the AA-NAT gene G203A is associated with Awassi and Hamdani sheep fertility. Anim Biotechnol 2024; 35:2352771. [PMID: 38753969 DOI: 10.1080/10495398.2024.2352771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Arylalkylamine-N-acetyl-transferase (AA-NAT) is one of several genes that influence sheep reproduction. Thus, the objective of this study was to investigate whether genetic variability within the AA-NAT gene influenced the reproductive performance of Awassi and Hamdani ewes. A total of 99 twin and 101 single-progeny ewes were analyzed for genomic DNA. Polymerase chain reaction (PCR) was used to produce amplicons of 300, 313, and 287 bp from exons 1, 2, and 3 of the AA-NAT gene. A 300-bp amplicon was genotyped, resulting in two genotypes: GG and GA. Through sequence analysis, a mutation 203 G > A was identified in the GA genotype. The statistical analysis revealed a strong correlation between the single nucleotide polymorphism (SNP) 203 G > A and reproductive performance. Ewes carrying this mutation showed significantly increased litter sizes, twinning rates, lambing rates, and fewer days to lambing compared to those carrying GG. These findings demonstrate that the presence of the 203 G > A SNP variant has a significant positive impact on litter sizes and enhances the fertility of Awassi and Hamdani sheep.
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Affiliation(s)
- Waleed A Abd Al-Jabar
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Babil, Iraq
| | - Tahreer M Al-Thuwaini
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Babil, Iraq
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Abuzahra M, Wijayanti D, Effendi MH, Mustofa I, Lamid M. Association of melatonin receptor 1 A with litter size in sheep: A review. F1000Res 2024; 12:900. [PMID: 38322310 PMCID: PMC10844802 DOI: 10.12688/f1000research.134890.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/04/2024] [Indexed: 02/08/2024] Open
Abstract
Sheep are a valuable livestock species worldwide, providing meat, milk, and various dairy products. This article aims to review the latest literature on the melatonin receptor 1A (MTNR1A) gene as a potential candidate gene associated with reproductive traits, particularly the litter size trait in sheep, by searching various databases for available literature. Studies have shown that different parts of the MTNR1A gene play various roles in sheep. By identifying marker genes associated with reproductive traits in MTNR1A polymorphisms linked to the litter size trait, breeders can achieve a faster selection response in sheep breeding by recognizing the genomic region where these genes are located and understanding their physiological functions. Therefore, highlighting the literature on these functions and their association with reproductive traits may contribute to improving the genetic makeup during sheep breeding.
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Affiliation(s)
| | - Dwi Wijayanti
- Department of Animal Science, Perjuangan University of Tasikmalaya, Tasikmalaya, West Java, 46115, Indonesia
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mustofa Helmi Effendi
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Imam Mustofa
- Department of Veterinary Reproduction, Faculty of Veterinary Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Mirni Lamid
- Department of Animal Husbandry, Universitas Airlangga, Surabaya, East Java, Indonesia
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Agradi S, Luridiana S, Mura MC, Cosso G, Vigo D, Menchetti L, Brecchia G, Carcangiu V, Curone G. Polymorphism of the MTNR1A Melatonin Receptor Gene in Goat Breeds of Northern Italy. Animals (Basel) 2023; 13:3855. [PMID: 38136892 PMCID: PMC10740901 DOI: 10.3390/ani13243855] [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: 10/28/2023] [Revised: 12/10/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Melatonin receptor MT1, encoded by the MTNR1A gene, is the main one involved in the seasonal regulation of reproductive activity. A correlation between this gene polymorphism and reproductive performance has been demonstrated in sheep. To date, no data about MTNR1A gene polymorphism are available regarding Italian goat breeds other than the Sarda goat. This study aimed to detect any PCR-RFLP polymorphic sites of MTNR1A using MnlI and RsaI enzymes in Northern Italian goat breeds, which are characterized by a pronounced reproductive seasonality. One-hundred-eight adult female goats belonging to four different breeds were included in the study (i.e., Frisa Valtellinese, n = 29; Orobica, n = 23; Lariana, n = 29; Camosciata delle Alpi, n = 27). Blood was sampled from each goat. Genomic DNA was extracted from each sample and the main part of exon II of MTNR1A gene was amplified by PCR and digested with MnlI and RsaI enzymes. Unexpectedly, none of the fragments were found to be polymorphic. The absence of polymorphism may be linked to the macro group of goat breeds that evolved during human migrations. Breeds of the Alpine-European strain would appear to show no polymorphism, as confirmed by our study, whereas breeds belonging to the Mediterranean-African or Asian-Middle Eastern strains do.
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Affiliation(s)
- Stella Agradi
- Department of Veterinary Medicine and Animal Sciences, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (S.A.); (D.V.); (G.C.)
| | - Sebastiano Luridiana
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (S.L.); (M.C.M.); (G.C.); (V.C.)
| | - Maria Consuelo Mura
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (S.L.); (M.C.M.); (G.C.); (V.C.)
| | - Giovanni Cosso
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (S.L.); (M.C.M.); (G.C.); (V.C.)
| | - Daniele Vigo
- Department of Veterinary Medicine and Animal Sciences, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (S.A.); (D.V.); (G.C.)
| | - Laura Menchetti
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Circonvallazione 93/95, 62024 Matelica, Italy
| | - Gabriele Brecchia
- Department of Veterinary Medicine and Animal Sciences, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (S.A.); (D.V.); (G.C.)
| | - Vincenzo Carcangiu
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100 Sassari, Italy; (S.L.); (M.C.M.); (G.C.); (V.C.)
| | - Giulio Curone
- Department of Veterinary Medicine and Animal Sciences, University of Milan, Via dell’Università 6, 26900 Lodi, Italy; (S.A.); (D.V.); (G.C.)
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Yang D, Yuan L, Chen G, Chen S, Ma X, Xing Y, Song J. Expression and role of melatonin membrane receptors in the hypothalamic-pituitary-testicular axis of Tibetan sheep in a plateau pastoral area. PLoS One 2023; 18:e0290775. [PMID: 37878614 PMCID: PMC10599587 DOI: 10.1371/journal.pone.0290775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 08/16/2023] [Indexed: 10/27/2023] Open
Abstract
MTNR1A and MTNR1B, two high-affinity MT membrane receptors found in mammals, mediate the activity of MT on the HPGA to regulate animal reproduction. Nevertheless, the expression patterns and function of the MTNR1A and MTNR1B genes in the HPTA of seasonal estrus sheep and perennial estrus sheep have not been elucidated. We studied the expression of MTNR1A and MTNR1B in the hypothalamic-pituitary-testicular axis (HPTA) of Tibetan sheep at different reproductive stages using histochemistry, enzyme linked immunosorbent assay (ELSIA), scanning electron microscopy, transmission electron microscopy, quantitative Real-time PCR (qRT-PCR), and Western blot (WB), and analyzed the relationship between their expression and reproductive hormone receptors. We also compared relevant characteristics between seasonal Tibetan sheep and non-seasonal Small Tail Han sheep in the same pastoral area. The results showed that MTNR1A and MTNR1B were expressed in all tissues of the Tibetan sheep HPTA, and both were co-expressed in the cytoplasm of epididymis basal and halo cells located at common sites of the epididymis basement membrane, forming an immune barrier. The qRT-PCR analysis showed that not only MTNR1A but also N-acetyltransferase (AANAT), hydroxyindole-oxygen- methyltransferase (HIOMT), androgen receptor (AR), and estrogen receptor α (ERα) mRNA expression was significantly upregulated in the testis and epididymis of Tibetan sheep during the breeding season, whereas no clear upregulation of these genes was observed in the tissues of Small Tail Han sheep. MTNR1A and MTNR1B are important regulators of the HPTA in sheep. MTNR1A mediates seasonal estrus regulation in Tibetan sheep. Both MTNR1A and MTNR1B may play important roles in formation of the blood-epididymal barrier. The results of this study should help advance research on the mechanism of reproductive regulation of the HPTA in male animals and provide reference data for improving the reproductive rate of seasonal breeding animals.
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Affiliation(s)
- Dapeng Yang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Ligang Yuan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou, China
| | - Guojuan Chen
- Huangzhong District Animal Disease Control Center of Xining City, Xining City, Qinghai Province, China
| | - Shaoyu Chen
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Xiaojie Ma
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Yindi Xing
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
| | - Juanjuan Song
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, China
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Bendarska-Czerwińska A, Zmarzły N, Morawiec E, Panfil A, Bryś K, Czarniecka J, Ostenda A, Dziobek K, Sagan D, Boroń D, Michalski P, Pallazo-Michalska V, Grabarek BO. Endocrine disorders and fertility and pregnancy: An update. Front Endocrinol (Lausanne) 2022; 13:970439. [PMID: 36733805 PMCID: PMC9887196 DOI: 10.3389/fendo.2022.970439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
It is estimated that more and more couples suffer from fertility and pregnancy maintenance disorders. It is associated with impaired androgen secretion, which is influenced by many factors, ranging from genetic to environmental. It is also important to remember that fertility disorders can also result from abnormal anatomy of the reproductive male and female organ (congenital uterine anomalies - septate, unicornuate, bicornuate uterus; acquired defects of the uterus structure - fibroids, polyps, hypertrophy), disturbed hormonal cycle and obstruction of the fallopian tubes resulting from the presence of adhesions due to inflammation, endometriosis, and surgery, abnormal rhythm of menstrual bleeding, the abnormal concentration of hormones. There are many relationships between the endocrine organs, leading to a chain reaction when one of them fails to function properly. Conditions in which the immune system is involved, including infections and autoimmune diseases, also affect fertility. The form of treatment depends on infertility duration and the patient's age. It includes ovulation stimulation with clomiphene citrate or gonadotropins, metformin use, and weight loss interventions. Since so many different factors affect fertility, it is important to correctly diagnose what is causing the problem and to modify the treatment regimen if necessary. This review describes disturbances in the hormone secretion of individual endocrine organs in the context of fertility and the maintenance of pregnancy.
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Affiliation(s)
- Anna Bendarska-Czerwińska
- Department of Molecular, Biology Gyncentrum Fertility Clinic, Katowice, Poland
- Faculty of Medicine, Academy of Silesia, Zabrze, Poland
- American Medical Clinic, Katowice, Poland
- *Correspondence: Anna Bendarska-Czerwińska, ; Nikola Zmarzły, ; Beniamin Oskar Grabarek,
| | - Nikola Zmarzły
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology, Academy of Silesia in Katowice, Zabrze, Poland
- *Correspondence: Anna Bendarska-Czerwińska, ; Nikola Zmarzły, ; Beniamin Oskar Grabarek,
| | - Emilia Morawiec
- Department of Molecular, Biology Gyncentrum Fertility Clinic, Katowice, Poland
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology, Academy of Silesia in Katowice, Zabrze, Poland
- Department of Microbiology, Faculty of Medicine, University of Technology, Academy of Silesia in Katowice, Zabrze, Poland
| | - Agata Panfil
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology, Academy of Silesia in Katowice, Zabrze, Poland
| | - Kamil Bryś
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology, Academy of Silesia in Katowice, Zabrze, Poland
| | - Justyna Czarniecka
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology, Academy of Silesia in Katowice, Zabrze, Poland
| | | | | | - Dorota Sagan
- Medical Center Dormed Medical SPA, Busko-Zdroj, Poland
| | - Dariusz Boroń
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology, Academy of Silesia in Katowice, Zabrze, Poland
- Department of Gynaecology and Obstetrics, Faculty of Medicine, Academy of Silesia, Zabrze, Poland
- Department of Gynecology and Obstetrics with Gynecologic Oncology, Ludwik Rydygier Memorial Specialized Hospital, Kraków, Poland
- Department of Gynecology and Obstetrics, TOMMED Specjalisci od Zdrowia, Katowice, Poland
| | | | | | - Beniamin Oskar Grabarek
- Department of Molecular, Biology Gyncentrum Fertility Clinic, Katowice, Poland
- Department of Histology, Cytophysiology and Embryology, Faculty of Medicine, University of Technology, Academy of Silesia in Katowice, Zabrze, Poland
- Department of Gynaecology and Obstetrics, Faculty of Medicine, Academy of Silesia, Zabrze, Poland
- Department of Gynecology and Obstetrics with Gynecologic Oncology, Ludwik Rydygier Memorial Specialized Hospital, Kraków, Poland
- Department of Gynecology and Obstetrics, TOMMED Specjalisci od Zdrowia, Katowice, Poland
- *Correspondence: Anna Bendarska-Czerwińska, ; Nikola Zmarzły, ; Beniamin Oskar Grabarek,
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Abecia JA, Mura MC, Carvajal-Serna M, Pulinas L, Macías A, Casao A, Pérez-Pe R, Carcangiu V. Polymorphisms of the melatonin receptor 1A (MTNR1A) gene influence the age at first mating in autumn-born ram-lambs and sexual activity of adult rams in spring. Theriogenology 2020; 157:42-47. [PMID: 32799126 DOI: 10.1016/j.theriogenology.2020.07.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/28/2020] [Accepted: 07/26/2020] [Indexed: 01/01/2023]
Abstract
The aim of this study was to determine whether polymorphisms of the melatonin receptor 1A (MTNR1A) gene influence the age at first mating in autumn-born ram-lambs and influence the out-of-season sexual activity of adult rams. In experiment 1, 24 Rasa Aragonesa ram-lambs born in September were genotyped for their RsaI and MnlI allelic variants of the MTNR1A gene, and the date of their first mounting with ejaculation after a period of semen collection training was documented. In experiment 2, the reproductive behavior, testicle size, and plasma testosterone concentrations of 18 adult rams (6 rams for each RsaI genotype) were recorded at the beginning (March) and end (May) of the seasonal anestrus. The number of days of training to achieve the first mating with ejaculation in T/T (C/C: 85.17 ± 12.08 C/T: 86.60 ± 18.87; T/T; 26.50 ± 24.50 d; P < 0.05), and G/G ram-lambs (G/G: 51.57 ± 14.99; A/G: 95.58 ± 10.95 d; P < 0.05) was significantly fewer than it was in the other genotypes. Likewise, for the RsaI genotype, 55% of the vulva-sniffing (P < 0.001), 48% of the approaches (P < 0.01), 48% of the mountings (P < 0.05) and 49% total activities (P < 0.001) were performed by T/T rams in March, and 50% of the sexual events in May (P < 0.001). For the Mnll variant, G/G rams performed a significantly (P < 0.001) larger proportion of the vulva-sniffing (41%), approaches (46%) and total activities (40%) in March, and 52% of the vulva-sniffing (P < 0.001), 43%, of the approaches (P < 0.001), 46% of the mountings (P < 0.05), and 47% of the total activities (P < 0.001) in May. Scrotal circumference, testicular volume, and plasma testosterone concentrations did not differ significantly among genotypes. Results confirmed that the polymorphisms of the MTNR1A gene sequence can influence reproductive performance in young and adult rams. Autumn-born ram-lambs that carried the T/T or G/G genotype had an advanced ability to reproduce, and T/T or G/G adult rams exhibited the most intense reproductive behavior. Genotyping might be a useful procedure for identifying the correct and rational use of rams in modern sheep farming.
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Affiliation(s)
| | - M C Mura
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, Sassari, Italy
| | | | - L Pulinas
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, Sassari, Italy
| | - A Macías
- Asociación Nacional de Ganaderos de La Raza Rasa Aragonesa (ANGRA), Cabañera Real, s/n, 50800 Zuera, Zaragoza, Spain
| | - A Casao
- IUCA, Universidad de Zaragoza, Spain
| | | | - V Carcangiu
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, Sassari, Italy
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