Red jungle fowl (Gallus gallus) as a model for studying the molecular mechanism of seasonal reproduction.
نویسندگان
چکیده
Photoperiodism is an adaptation mechanism that enables animals to predict seasonal changes in the environment. Japanese quail is the best model organism for studying photoperiodism. Although the recent availability of chicken genome sequences has permitted the expansion from single gene to genome-wide transcriptional analysis in this organism, the photoperiodic response of the domestic chicken is less robust than that of the quail. Therefore, in the present study, we examined the photoperiodic response of the red jungle fowl (Gallus gallus), a predecessor of the domestic chicken, to test whether this animal could be developed as an ideal model for studying the molecular mechanisms of seasonal reproduction. When red jungle fowls were transferred from short-day- to long-day conditions, gonadal development and an increase in plasma LH concentration were observed. Furthermore, rapid induction of thyrotropin beta subunit, a master regulator of photoperiodism, was observed at 16 h after dawn on the first long day. In addition, the long-day condition induced the expression of type 2 deiodinase, the key output gene of photoperiodism. These results were consistent with the results obtained in quail and suggest that the red jungle fowl could be an ideal model animal for the genome-wide transcriptional analysis of photoperiodism.
منابع مشابه
Gene expression in brains from red jungle fowl (Gallus gallus) that differ in fear response
متن کامل
Intact EAV-HP endogenous retrovirus in Sonnerat's jungle fowl.
The EAV-HP group of chicken endogenous retrovirus elements was previously shown to be defective, with large deletions of the pol gene. In this report, we demonstrate that genomes of other Gallus species also maintain EAV-HP elements with similar deletions. The chicken EAV-HP1 locus was detected in both red (Gallus gallus gallus) and Sonnerat's (Gallus sonneratii) jungle fowl with identical inte...
متن کاملNew Host Records of Parasites in the Malayan Red Jungle Fowl, Gallns gallus spadiceus
Thirty species of parasites were recovered from seven adult male Malayan red jungle fowls Gallus gallus spadiceus from Ulu Langat, Selangor, Malaysia. Fifteen species of the parasites are newly recorded for this host; they are Pseudolynchia canariensis, Eimeria sp., Trichomonas gallinarum, Ascaridia galli, Capillaria annulata, Capillaria contorta, Cardiofilaria nilesi, Dispharynx spiralis, Gong...
متن کاملNew Host Records of Parasites in the Malayan Red Jungle Fowl, Gallus gallus spadiceus
Thirty species of parasites were recovered from seven adult male Malayan red jungle fowls Gallus gallus spadiceus from Ulu Langat, Selangor, Malaysia. Fifteen species of the parasites are newly recorded for this host; they are Pseudolynchia canariensis, Eimeria sp., Trichomonas gallinarum, Ascaridia galli, Capillaria annulata, Capillaria contorta, Cardiofilaria nilesi, Dispharynx spiralis, Gong...
متن کاملPlumage Color Allelism in the Red Jungle Fowl (Gallus Gallus) and Related Domestic Forms.
HE lack of an ancestral “standard of reference”, “normal” or “wild type” T for use in genetic studies of the domestic fowl has been of little concern to many poultry geneticists (for a recent discussion of this topic see JAAP and HOLLANDER 1954). In the field of plumage color inheritance, however, a standard of reference seems necessary in describing the action of mutant genes. What the standar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Animal science journal = Nihon chikusan Gakkaiho
دوره 80 3 شماره
صفحات -
تاریخ انتشار 2009