{"id":54879,"date":"2020-08-27T13:53:00","date_gmt":"2020-08-27T10:53:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/daylight-study-reveals-how-animals-adapt-between-seasons\/"},"modified":"2020-08-27T13:53:00","modified_gmt":"2020-08-27T10:53:00","slug":"daylight-study-reveals-how-animals-adapt-between-seasons","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/daylight-study-reveals-how-animals-adapt-between-seasons\/","title":{"rendered":"#Daylight study reveals how animals adapt between seasons"},"content":{"rendered":"

“#Daylight study reveals how animals adapt between seasons<\/strong>”<\/p>\n

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\"Daylight<\/img>
\n Scottish Blackface flock. Scientists have discovered how a biological switch helps sheep make the seasonal changes crucial for survival, such as growing a warm winter coat and adjusting body temperatures. Credit: University of Edinburgh
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Scientists have discovered how a biological switch helps animals make the seasonal changes crucial for survival, such as growing a warm winter coat and adjusting body temperatures.<\/p>\n

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The findings reveal how the brain responds to short and long days to allow animals to adapt to changing conditions and governs vital behavior such as breeding cycles.<\/p>\n

Researchers say the study in sheep could help explain the timings of seasonal adaptations in a number of species such as birds, reptiles and mammals.
\nThe body’s internal clock choreographs cycles in hormone levels and affects traits such as sleep and hunger. These alter over the course of the day\u2014known as circadian rhythms\u2014and are influenced by genetics.
\nSimilar rhythms are also seen seasonally, but until now it was unclear how genes play a role in the biological changes that fluctuate between winter and summer.
\nResearchers led by the Universities of Edinburgh and Manchester studied an endocrine gland attached to the brain called the pituitary gland in sheep experiencing short or long lengths of day.
\nBrain tissue was analyzed for gene activity across time, allowing scientists to observe the biological processes that happ<\/a>en in response to different day lengths.
\nThey found that one of two possible biological mechanisms is activated within the pituitary gland depending on whether the day is long or short.
\nIn summer when nights are long, the brain generates hormones that cause a cascade of gene activity leading to biological characteristics associated with summer.
\nWhen nights are short in winter, the switch is flipped\u2014night-time hormones are released for longer, triggering biological processes linked to winter.
\nThe study found that in the sheep brain, both processes involve a circadian gene known as BMAL2, which is found in many animals but whose role in the seasonal clock was previously unknown.
\nThe study, published in Nature Communications<\/i>, was funded by the Biotechnology<\/a> and Biological Science<\/a>s Research Council.
\nThe Roslin Institute receives strategic investment funding from the Biotechnology and Biological Sciences Research Council and it is part of the University of Edinburgh’s Royal (Dick) School of Veterinary Studies.
\nProfessor Simone Meddle, who co-led the research from the University of Edinburgh’s Roslin Institute, said: “Fluctuations in hormones and behavior are part of a delicate biological orchestra that is crucial to life. Many animals depend on seasonal changes in their biology to survive and our findings are a crucial part of the puzzle to understand the underlying processes.”
\nProfessor Andrew Loudon, who co-led the study from the University of Manchester, said: “The genetic ‘flip-flop’ timer we have identified is key to functions such as fertility as sheep transition between winter and summer. We speculate that this genetic timer is likely to be fundamental to yearly changes in many species.”<\/p>\n

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More information:<\/strong>
\n S. H. Wood et al, Circadian clock mechanism driving mammalian photoperiodism, Nature Communications<\/i> (2020). DOI: 10.1038\/s41467-020-18061-z\n <\/div>\n

\n Citation<\/strong>:
\n Daylight study reveals how animals adapt between seasons (2020, August 27)
\n retrieved 27 August 2020
\n from https:\/\/phys.org\/news<\/a>\/2020-08-daylight-reveals-animals-seasons.html<\/p>\n

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“#Daylight study reveals how animals adapt between seasons” Scottish Blackface flock. Scientists have discovered how a biological switch helps sheep make the seasonal changes crucial for survival, such as growing a warm winter coat and adjusting body temperatures. Credit: University of Edinburgh Scientists have discovered how a biological switch helps animals make the seasonal changes…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[59637,19211],"class_list":["post-54879","post","type-post","status-publish","format-standard","hentry","category-sciencee","tag-daylight-study-reveals-how-animals-adapt-between-seasons","tag-plants-animals-molecular-computational-biology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/54879","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=54879"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/54879\/revisions"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=54879"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=54879"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=54879"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}