Nonlinear Models to Describe the Testicular Size Growth Curve of Mangalarga Marchador Stallions

Silva, Danielle Estanislau Coelho; Penitente-Filho, Jurandy Mauro; Netto, Domingos Lollobrigida Souza; Waddington, Bruna; Oliveira, Renan Reis de; Guimarães, José Domingos

doi:10.1016/j.jevs.2021.103422

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…However, as a primitive local breed that gradually formed under natural grazing conditions in alpine regions, the sexual maturation process of the Mongolian horse is influenced by various factors, including the environment and nutrition. Compared to other European and American horse breeds and other livestock, the sexual maturity of Mongolian horses is relatively late, and their development rate is slower [ 46 , 47 , 48 ]. Studies have shown that male Mongolian horses usually enter puberty around 18 months and reach full sexual maturity after 3 years.…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of mRNA and lncRNA Expression Profiles in Testicular Tissue of Sexually Immature and Sexually Mature Mongolian Horses

Liu,

Du,

Zhang

et al. 2024

Animals

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Testicular development and spermatogenesis are tightly regulated by both coding and non-coding genes, with mRNA and lncRNA playing crucial roles in post-transcriptional gene expression regulation. However, there are significant differences in regulatory mechanisms before and after sexual maturity. Nevertheless, the mRNAs and lncRNAs in the testes of Mongolian horses have not been systematically identified. In this study, we first identified the testicular tissues of sexually immature and sexually mature Mongolian horses at the tissue and protein levels, and comprehensively analyzed the expression profiles of mRNA and lncRNA in the testes of 1-year-old (12 months, n = 3) and 10-year-old (n = 3) Mongolian horses using RNA sequencing technology. Through gene expression analysis, we identified 16,582 mRNAs and 2128 unknown lncRNAs that are commonly expressed in both sexually immature and sexually mature Mongolian horses. Meanwhile, 9217 mRNAs (p < 0.05) and 2191 unknown lncRNAs (p < 0.05) were identified as differentially expressed between the two stages, which were further validated by real-time fluorescent quantitative PCR and analyzed using Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG). The analysis results showed that genes in the sexually immature stage were mainly enriched in terms related to cellular infrastructure, while genes in the sexually mature stage were enriched in terms associated with hormones, metabolism, and spermatogenesis. In summary, the findings of this study provide valuable resources for a deeper understanding of the molecular mechanisms underlying testicular development and spermatogenesis in Mongolian horses and offer new perspectives for future related research.

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Section: Discussionmentioning

confidence: 99%