Overcoming neuroendocrine and metabolic barriers to puberty: the role of melatonin in advancing puberty in ewe lambs

KR Pool, JP Rickard, SP de Graaf - Domestic Animal Endocrinology, 2020 - Elsevier
Pubertal onset in the ewe is subject to a multitude of physiological and environmental
constraints. As seasonal breeders, sheep rely on decreasing photoperiod to enter puberty …

Polymorphism of the melatonin receptor MT1 gene and its relationship with seasonal reproductive activity in the Sarda sheep breed

V Carcangiu, MC Mura, GM Vacca, M Pazzola… - Animal Reproduction …, 2009 - Elsevier
The aim was to study the polymorphisms of the melatonin receptor 1A gene (MTNR1A) and
its relationship with seasonal reproduction in the Sarda sheep breed. Four-thousand …

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

JA Abecia, MC Mura, M Carvajal-Serna, L Pulinas… - Theriogenology, 2020 - Elsevier
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 …

Characterisation of the melatonin receptor 1A (MTNR1A) gene in the Rasa Aragonesa sheep breed: association with reproductive seasonality

A Martínez-Royo, B Lahoz, JL Alabart, J Folch… - Animal Reproduction …, 2012 - Elsevier
The ovine Melatonin Receptor 1A (MTNR1A) gene was structurally characterised and
association between its variants and the reproductive seasonality was examined in a …

Polymorphisms of the melatonin receptor 1A gene that affects the reproductive seasonality and litter size in Small Tail Han sheep

X He, Z Zhang, Q Liu, M Chu - Reproduction in Domestic …, 2019 - Wiley Online Library
Previous researches have shown that MTNR1A plays an essential role in sheep
reproduction. However, most researches focused more on the reproductive seasonality of …

MTNR1A gene polymorphisms and reproductive recovery after seasonal anoestrus in different Mediterranean sheep breeds

L Pulinas, J Starič, G Cosso, G Curone… - Animal Reproduction …, 2022 - Elsevier
The aims of this study were 1) to investigate the effect of MTNR1A gene polymorphisms on
reproductive performance in ewes of one Italian and two Slovenian dairy sheep breeds …

New polymorphisms at MTNR1A gene and their association with reproductive resumption in sarda breed sheep

S Luridiana, G Cosso, L Pulinas, MV Di Stefano… - Theriogenology, 2020 - Elsevier
The aim of this study was to characterize the MTNR1A locus in Sarda sheep breed, in order
to identify potential single nucleotide polymorphisms (SNPs) associated with reproductive …

Influence of melatonin receptor 1A gene polymorphisms on seasonal reproduction in Sarda ewes with different body condition scores and ages

MC Mura, S Luridiana, S Bodano, C Daga… - Animal reproduction …, 2014 - Elsevier
In several species, circadian changes in melatonin concentrations play a key role in the
photoperiodic control of seasonality. In sheep, two silent mutations in the melatonin receptor …

Reproductive response to male joining with ewes with different allelic variants of the MTNR1A gene

MC Mura, S Luridiana, L Pulinas, MV Di Stefano… - Animal reproduction …, 2019 - Elsevier
The aims were to evaluate the reproductive response to ram placement with Sarda ewes
with different allelic variants at position g. 15099485 A> G of the MTNR1 A gene. Ram …

[HTML][HTML] Sequence analysis and identification of new variations in the coding sequence of melatonin receptor gene (MTNR1A) of Indian Chokla sheep breed

VK Saxena, BK Jha, AS Meena, SMK Naqvi - Meta Gene, 2014 - Elsevier
Melatonin receptor 1A gene is the prime receptor mediating the effect of melatonin at the
neuroendocrine level for control of seasonal reproduction in sheep. The aims of this study …