Mammary core clock gene expression is impacted by photoperiod exposure during the dry period in goats
Autor: | Theresa M. Casey, Karen Plaut, Mugagga Kalyesubula, Avi Shamay, Chris Sabastian, Yosi Wein, Enav Bar-Shira, Naama Reicher, Sameer. J. Mabjeesh |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2018 |
Předmět: | |
Zdroj: | Journal of Applied Animal Research, Vol 46, Iss 1, Pp 1214-1219 (2018) |
Druh dokumentu: | article |
ISSN: | 0971-2119 0974-1844 09712119 |
DOI: | 10.1080/09712119.2018.1486317 |
Popis: | Short-day photoperiod (SDPP) during the dry period increases milk production compared to long-day photoperiod (LDPP) in goats. Photoperiod information is sent to the master clock in the suprachiasmatic nuclei (SCN), which send temporal information to peripheral clocks located in every tissue of the body. We hypothesized photoperiod effects on milk production are mediated in part by changes in mammary clocks. Our objective was to determine the effect of photoperiod manipulation during the dry period in goats on core clock genes expression in mammary gland. Multiparous goats (n = 6) were blocked at dry off into two treatments: LDPP and SDPP. Serial mammary biopsies were taken over a 24 h period during three weeks prepartum. Total RNA was isolated, and q-PCR analysis of the core clock genes CLOCK, ARNTL, PER1, CRY1, and CRY2 found exposure to LDPP significantly increased ARNTL (P |
Databáze: | Directory of Open Access Journals |
Externí odkaz: | |
Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |