https://blue.feedland.org/?river=http://data.feedland.org/blue/feeds/cslamo.xml Mon, 25 Nov 2024 15:27:44 GMT feedland v0.6.43 https://cyber.harvard.edu/rss/rss.html Mon, 25 Nov 2024 15:27:44 GMT http://rpc.rsscloud.io:5337/pleaseNotify Mon, November 25, 2024 10:27 AM EST <p>I&#39;m happy to report that our paper on the mitochondrial genome of Oxyrrhis marina is finally out! <a href="https://www.sciencedirect.com/science/article/pii/S1434461024000634">https://www.sciencedirect.com/science/article/pii/S1434461024000634</a></p> <p>What&#39;s all this about? Just another mitogenome? NO! As Burger, Gray and Lang said a long time ago, ANYTHING GOES for mitochondrial genomes. And if anything can be weird, dinoflagellates will make it weirder! </p> <p>Apicomplexans (dinoflagellates&#39; sister group) have tiny, super-reduced mitogenomes with only 3 protein-coding genes and fragmented rRNA. Dinos also have 3 genes and frag&#39;d rRNA but genome organization was difficult to pinpoint due to extensive fragmentation, redundancy and recombination. </p> <p>In 2015, Shoguchi et al. assembled a surprisingly large (326kbp) mitogenome in a symbiodinacean, suggesting that these genomes went from tiny to very large by accruing noncoding DNA while holding on to the same functional content. </p> <p>Using Pacbio, we show that the early-branching (you all know what I mean) dinoflagellate O. marina has its mitogenome spread across 3 &quot;chromosomes&quot; sized 16, 34 and 40kbp. While there&#39;s a lot of noncoding DNA, no evidence for repeated or mobile DNA exists, and most noncoding DNA seems to arise from nonfunctional fragments of the same old 3 genes cob, coxI and coxIII. All in all, recombination is a pervasive process driving the evolution of these genomes</p> Mon, 25 Nov 2024 15:27:44 GMT https://blue.feedland.org/?item=787620 https://blue.feedland.org/?item=787620 I'm happy to report that our paper on the mitochondrial genome of Oxyrrhis marina is finally out! https://www.sciencedirect.com/science/article/pii/S1434461024000634 What's all this about? Just another mitogenome? NO! As Burger, Gray and Lang said a long time ago, ANYTHING GOES for mitochondrial genomes. And if anything can be weird, dinoflagellates will make it weirder! Apicomplexans (dinoflagellates' sister group) have tiny, super-reduced mitogenomes with only 3 protein-coding genes and fragmented rRNA. Dinos also have 3 genes and frag'd rRNA but genome organization was difficult to pinpoint due to extensive fragmentation, redundancy and recombination. In 2015, Shoguchi et al. assembled a surprisingly large (326kbp) mitogenome in a symbiodinacean, suggesting that these genomes went from tiny to very large by accruing noncoding DNA while holding on to the same functional content. Using Pacbio, we show that the early-branching (you all know what I mean) dinoflagellate O. marina has its mitogenome spread across 3 "chromosomes" sized 16, 34 and 40kbp. While there's a lot of noncoding DNA, no evidence for repeated or mobile DNA exists, and most noncoding DNA seems to arise from nonfunctional fragments of the same old 3 genes cob, coxI and coxIII. All in all, recombination is a pervasive process driving the evolution of these genomes <p>I&#39;m happy to report that our paper on the mitochondrial genome of Oxyrrhis marina is finally out! <a href="https://www.sciencedirect.com/science/article/pii/S1434461024000634">https://www.sciencedirect.com/science/article/pii/S1434461024000634</a></p> <p>What&#39;s all this about? Just another mitogenome? NO! As Burger, Gray and Lang said a long time ago, ANYTHING GOES for mitochondrial genomes. And if anything can be weird, dinoflagellates will make it weirder!</p> <p>Apicomplexans (dinoflagellates&#39; sister group) have tiny, super-reduced mitogenomes with only 3 protein-coding genes and fragmented rRNA. Dinos also have 3 genes and frag&#39;d rRNA but genome organization was difficult to pinpoint due to extensive fragmentation, redundancy and recombination.</p> <p>In 2015, Shoguchi et al. assembled a surprisingly large (326kbp) mitogenome in a symbiodinacean, suggesting that these genomes went from tiny to very large by accruing noncoding DNA while holding on to the same functional content.</p> <p>Using Pacbio, we show that the early-branching (you all know what I mean) dinoflagellate O. marina has its mitogenome spread across 3 &quot;chromosomes&quot; sized 16, 34 and 40kbp. While there&#39;s a lot of noncoding DNA, no evidence for repeated or mobile DNA exists, and most noncoding DNA seems to arise from nonfunctional fragments of the same old 3 genes cob, coxI and coxIII. All in all, recombination is a pervasive process driving the evolution of these genomes</p> Mon, 25 Nov 2024 15:27:43 GMT https://blue.feedland.org/?item=787619 https://blue.feedland.org/?item=787619 I'm happy to report that our paper on the mitochondrial genome of Oxyrrhis marina is finally out! https://www.sciencedirect.com/science/article/pii/S1434461024000634 What's all this about? Just another mitogenome? NO! As Burger, Gray and Lang said a long time ago, ANYTHING GOES for mitochondrial genomes. And if anything can be weird, dinoflagellates will make it weirder! Apicomplexans (dinoflagellates' sister group) have tiny, super-reduced mitogenomes with only 3 protein-coding genes and fragmented rRNA. Dinos also have 3 genes and frag'd rRNA but genome organization was difficult to pinpoint due to extensive fragmentation, redundancy and recombination. In 2015, Shoguchi et al. assembled a surprisingly large (326kbp) mitogenome in a symbiodinacean, suggesting that these genomes went from tiny to very large by accruing noncoding DNA while holding on to the same functional content. Using Pacbio, we show that the early-branching (you all know what I mean) dinoflagellate O. marina has its mitogenome spread across 3 "chromosomes" sized 16, 34 and 40kbp. While there's a lot of noncoding DNA, no evidence for repeated or mobile DNA exists, and most noncoding DNA seems to arise from nonfunctional fragments of the same old 3 genes cob, coxI and coxIII. All in all, recombination is a pervasive process driving the evolution of these genomes