1.0British Antarctic Surveyhttps://www.bas.ac.ukChaotic formation of genetic islands among marine molluscs - British Antarctic Surveyrich600338<blockquote class="wp-embedded-content" data-secret="j38NrwfiNt"><a href="https://www.bas.ac.uk/media-post/chaotic-formation-of-genetic-islands-among-marine-molluscs/">Chaotic formation of genetic islands among marine molluscs</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.bas.ac.uk/media-post/chaotic-formation-of-genetic-islands-among-marine-molluscs/embed/#?secret=j38NrwfiNt" width="600" height="338" title="“Chaotic formation of genetic islands among marine molluscs” — British Antarctic Survey" data-secret="j38NrwfiNt" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
/* <![CDATA[ */
/*! This file is auto-generated */
!function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document);
/* ]]> */
</script>
https://www.bas.ac.uk/wp-content/uploads/2015/05/a42ccba6860aa93c0c035a073f70d123_1432640861.jpg1280846New research by scientists at British Antarctic Survey and Bielefeld University explains how the chaotic formation of genetic islands can occur in marine molluscs. Usually, the individuals of a population of marine species that has the potential to disperse over long distances all differ genetically because of the mixing while they disperse. However, at some sites, small groups of very closely related individuals, brothers and sisters, or cousins, can suddenly appear within populations. The study is published in the journal Science Advances and provides a benchmark for better understanding and managing marine populations.