{"id":126670,"date":"2019-07-08T22:30:38","date_gmt":"2019-07-08T22:30:38","guid":{"rendered":"https:\/\/www.bnreport.com\/ground-beetle-genitals-have-the-genetic-ability-to-get-strange-they-dont\/"},"modified":"2019-07-08T22:30:38","modified_gmt":"2019-07-08T22:30:38","slug":"ground-beetle-genitals-have-the-genetic-ability-to-get-strange-they-dont","status":"publish","type":"post","link":"https:\/\/www.bnreport.com\/en\/ground-beetle-genitals-have-the-genetic-ability-to-get-strange-they-dont\/","title":{"rendered":"Ground beetle genitals have the genetic ability to get strange. They dont"},"content":{"rendered":"<p>A new peek at the genetics of beetle genitals reveals the underpinnings of a battle of the sexes.<\/p>\n<p>When mating, males of Japans flightless <em>Carabus<\/em> beetles insert a chitin-covered appendage that, once inside a female, pops out a plump sperm-delivery tube as well as a side projection called a copulatory piece. That piece doesnt deliver any sperm, but steadies the alignment by fitting just so into a special pocket inside the female reproductive tract.<\/p>\n<p>Researchers in Japan have now identified several regions of DNA that include genes controlling the length and width of the piece and pocket. Instead of being controlled mostly by the same genes, the beetles seem <a href=\"https:\/\/advances.sciencemag.org\/content\/5\/6\/eaav9939\" rel=\"noreferrer noopener\" target=\"_blank\">to have a fair amount of genetic freedom<\/a> in changing one sexs doodad dimensions without also resizing the other sexs counterpart, evolutionary ecologist Teiji Sota of Kyoto University and colleagues say June 26 in <em>Science Advances<\/em>.<\/p>\n<p>Within a given species of these beetles, males and females have evolved compatible sizes, but the capacity for mismatching shows up in hybrids. Out-of-sync sizes can cause ruptures, snap-offs and generally low numbers of offspring. This misfortune matters not just to a few unlucky beetles, but to the whole process of forming species, or speciation.<\/p>\n<p>\u201cI personally think that one of the greatest remaining mysteries in evolutionary biology is the role of genital evolution in speciation,\u201d says Justa Heinen-Kay of the University of Minnesota in St. Paul. She was not part of the beetle work, but has studied fish genital evolution. Across the animal kingdom, shapes of genitals are among the most rapidly evolving traits, she points out. There are species that otherwise look almost exactly alike that specialists distinguish by differences in genitals.<\/p>\n<p>One early idea linking genital shape with the formation of species proposed that developing a unique his-and-hers fit worked as a lock and key that separated members of one species from another. One of Sotas early papers, in 1998, proposed that the <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1111\/j.1558-5646.1998.tb02033.x\" rel=\"noreferrer noopener\" target=\"_blank\">genital quirks<\/a> of the ground beetles worked as just this kind of separator of species.<\/p>\n<p>The lock-and-key concept sounded great, says Brian Langerhans of North Carolina State University in Raleigh. But disputes over evidence of the process led \u201cto many believing it played little role in reality.\u201d Recently though, he says, the idea is rousing interest again.<\/p>\n<p>Sota has started exploring the genetics governing size in the ground beetles proposed locks and keys. Earlier research had suggested a battle of the sexes over genital size. Longer could be better for a male, as it may he<a href=\"https:\/\/www.sciencenews.org\/article\/ground-beetle-genitals-genetics-evolution-battle-sexes\" rel=\"noreferrer noopener\" target=\"_blank\"><strong>Read More \u2013 Source<\/strong><\/a><br \/>\n[contf]<br \/>\n[contfnew]<br \/>\n        <img decoding=\"async\" src=\"https:\/\/www.sciencenews.org\/profiles\/sn\/themes\/science_news\/logo.png\" \/><\/p>\n<h5><a href=\"https:\/\/app.newswirenow.co.uk\/www.sciencenews.org\" rel=\"noreferrer noopener\" target=\"_blank\">science news<\/a><\/h5>\n<p>[contfnewc]<br \/>\n[contfnewc]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A new peek at the genetics of beetle genitals reveals the underpinnings of a battle of the sexes.<\/p>\n<p>W..<\/p>\n","protected":false},"author":1,"featured_media":126671,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-126670","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ground beetle genitals have the genetic ability to get strange. 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