PMID- 27803898 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201001 IS - 2297-1769 (Print) IS - 2297-1769 (Electronic) IS - 2297-1769 (Linking) VI - 3 DP - 2016 TI - Candidate Gene Expression in Bos indicus Ovarian Tissues: Prepubertal and Postpubertal Heifers in Diestrus. PG - 94 LID - 94 AB - Growth factors such as bone morphogenetic proteins 6, 7, 15, and two isoforms of transforming growth factor-beta (BMP6, BMP7, BMP15, TGFB1, and TGFB2), and insulin-like growth factor system act as local regulators of ovarian follicular development. To elucidate if these factors as well as others candidate genes, such as estrogen receptor 1 (ESR1), growth differentiation factor 9 (GDF9), follicle-stimulating hormone receptor (FSHR), luteinizing hormone receptor (LHR), bone morphogenetic protein receptor, type 2 (BMPR2), type 1 insulin-like growth factor receptor (IGFR1), and key steroidogenic enzymes cytochrome P450 aromatase and 3-beta-hydroxysteroid dehydrogenase (CYP19A1 and HSD3B1) could modulate or influence diestrus on the onset of puberty in Brahman heifers, their ovarian mRNA expression was measured before and after puberty (luteal phase). Six postpubertal (POST) heifers were euthanized on the luteal phase of their second cycle, confirmed by corpus luteum observation, and six prepubertal (PRE) heifers were euthanized in the same day. Quantitative real-time PCR analysis showed that the expression of FSHR, BMP7, CYP19A1, IGF1, and IGFR1 mRNA was greater in PRE heifers, when contrasted to POST heifers. The expression of LHR and HSD3B1 was lower in PRE heifers. Differential expression of ovarian genes could be associated with changes in follicular dynamics and different cell populations that have emerged as consequence of puberty and the luteal phase. The emerging hypothesis is that BMP7 and IGF1 are co-expressed and may modulate the expression of FSHR, LHR and IGFR1, and CYP19A1. BMP7 could influence the downregulation of LHR and upregulation of FSHR and CYP19A1, which mediates the follicular dynamics in heifer ovaries. Upregulation of IGF1 expression prepuberty, compared to postpuberty diestrus, correlates with increased levels FSHR and CYP19A1. Thus, BMP7 and IGF1 may play synergic roles and were predicted to interact, from the expression data (P = 0.07, r = 0.84). The role of these co-expressed genes in puberty and heifers luteal phase merits further research. FAU - Weller, Mayara Morena Del Cambre Amaral AU - Weller MM AD - Animal Science Department, Universidade Federal de Vicosa, Vicosa, Minas Gerais, Brazil; Queensland Alliance for Agriculture and Food Innovation, Centre for Animal Science, The University of Queensland, Brisbane, QLD, Australia. FAU - Fortes, Marina Rufino S AU - Fortes MR AD - School of Chemistry and Molecular Biosciences, The University of Queensland , Brisbane, QLD , Australia. FAU - Porto-Neto, Laercio R AU - Porto-Neto LR AD - CSIRO Agriculture Flagship, Queensland Bioscience Precinct , Brisbane, QLD , Australia. FAU - Kelly, Matthew AU - Kelly M AD - Queensland Alliance for Agriculture and Food Innovation, Centre for Animal Science, The University of Queensland , Brisbane, QLD , Australia. FAU - Venus, Bronwyn AU - Venus B AD - Queensland Alliance for Agriculture and Food Innovation, Centre for Animal Science, The University of Queensland , Brisbane, QLD , Australia. FAU - Kidd, Lisa AU - Kidd L AD - School of Veterinary Sciences, The University of Queensland , Gatton, QLD , Australia. FAU - do Rego, Joao Paulo Arcelino AU - do Rego JP AD - Instituto Federal de Educacao, Ciencia e Tecnologia do Ceara , Fortaleza, Ceara , Brazil. FAU - Edwards, Sophia AU - Edwards S AD - School of Veterinary Sciences, The University of Queensland , Gatton, QLD , Australia. FAU - Boe-Hansen, Gry B AU - Boe-Hansen GB AD - School of Veterinary Sciences, The University of Queensland , Gatton, QLD , Australia. FAU - Piper, Emily AU - Piper E AD - School of Veterinary Sciences, The University of Queensland , Gatton, QLD , Australia. FAU - Lehnert, Sigrid A AU - Lehnert SA AD - CSIRO Agriculture Flagship, Queensland Bioscience Precinct , Brisbane, QLD , Australia. FAU - Guimaraes, Simone Eliza Facioni AU - Guimaraes SE AD - Animal Science Department, Universidade Federal de Vicosa , Vicosa, Minas Gerais , Brazil. FAU - Moore, Stephen Stewart AU - Moore SS AD - Queensland Alliance for Agriculture and Food Innovation, Centre for Animal Science, The University of Queensland , Brisbane, QLD , Australia. LA - eng PT - Journal Article DEP - 20161018 PL - Switzerland TA - Front Vet Sci JT - Frontiers in veterinary science JID - 101666658 PMC - PMC5067528 OTO - NOTNLM OT - bovine species OT - corpus luteum OT - folliculogenesis OT - intraovarian factors OT - quantitative real-time PCR EDAT- 2016/11/03 06:00 MHDA- 2016/11/03 06:01 PMCR- 2016/01/01 CRDT- 2016/11/03 06:00 PHST- 2016/07/25 00:00 [received] PHST- 2016/10/04 00:00 [accepted] PHST- 2016/11/03 06:00 [pubmed] PHST- 2016/11/03 06:01 [medline] PHST- 2016/11/03 06:00 [entrez] PHST- 2016/01/01 00:00 [pmc-release] AID - 10.3389/fvets.2016.00094 [doi] PST - epublish SO - Front Vet Sci. 2016 Oct 18;3:94. doi: 10.3389/fvets.2016.00094. eCollection 2016.