<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Mei-Ling Cao</style></author><author><style face="normal" font="default" size="100%">Yu Nie</style></author><author><style face="normal" font="default" size="100%">Xi-Long Yi</style></author><author><style face="normal" font="default" size="100%">Jun Xiong</style></author><author><style face="normal" font="default" size="100%">Wei Wang</style></author><author><style face="normal" font="default" size="100%">Yuan-Ping Deng</style></author><author><style face="normal" font="default" size="100%">Yi-Tian Fu</style></author><author><style face="normal" font="default" size="100%">Guo-Hua Liu</style></author><author><style face="normal" font="default" size="100%">Renfu Shao</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Drastic variation in mitochondrial genome organization between two congeneric species of bird lice (Philopteridae: &lt;i&gt;Ibidoecus&lt;/i&gt;)</style></title><secondary-title><style face="normal" font="default" size="100%">BMC Genomics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Bird lice</style></keyword><keyword><style  face="normal" font="default" size="100%">Mt genome fragmentation</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2024</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Nov-14-2024</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://bmcgenomics.biomedcentral.com/articles/10.1186/s12864-024-11005-7</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">25</style></volume><pages><style face="normal" font="default" size="100%">9 pp</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;jats p=&quot;&quot;&gt;The over 4,100 species of bird lice are classified into 214 genera in the parvorders Amblycera and Ischnocera. Congeneric species of bird lice usually share much similarity in morphology and in mitochondrial (mt) genome organization. Two recent studies, however, reported substantial intra-genus variation in mt genome organization in bird lice. Both the ancestral single-chromosome mt genome and a fragmented mt genome with two or three minichromosomes were observed in the genera &lt;jats italic=&quot;&quot;&gt;Austromenopon&lt;/jats&gt; and &lt;jats italic=&quot;&quot;&gt;Laemobothrion&lt;/jats&gt;. To better understand intra-genus variation in mt genome organization, we sequenced the complete mt genome of the white spoonbill louse &lt;jats italic=&quot;&quot;&gt;Ibidoecus plataleae&lt;/jats&gt; and compared it with that of the glossy ibis feather louse &lt;jats italic=&quot;&quot;&gt;Ibidoecus bisignatus&lt;/jats&gt; reported previously. We found that &lt;jats italic=&quot;&quot;&gt;I. plataleae&lt;/jats&gt; had a fragmented mt genome with 12 minichromosomes; each minichromosome was 2,798 to 3,628&amp;nbsp;bp in size and had 2 to 6 genes. This is in stark contrast to the mt genome of &lt;jats italic=&quot;&quot;&gt;I. bisignatus&lt;/jats&gt;, which has all genes on a single chromosome, 14,909&amp;nbsp;bp in size. This is the most drastic intra-genus variation in mt genome organization observed to date in animals, indicating an unprecedented rapid process of mt genome fragmentation in the genus &lt;jats italic=&quot;&quot;&gt;Ibidoecus&lt;/jats&gt;. The divergence time between &lt;jats italic=&quot;&quot;&gt;I. plataleae&lt;/jats&gt; and &lt;jats italic=&quot;&quot;&gt;I. bisignatus&lt;/jats&gt; is currently unknown but is estimated to be less than 23&amp;nbsp;million years. Either many minichromosal split events occurred after &lt;jats italic=&quot;&quot;&gt;I. plataleae&lt;/jats&gt; diverged from &lt;jats italic=&quot;&quot;&gt;I. bisignatus&lt;/jats&gt;, or one minichromosome splits into multiple minichromosomes in a single event. Sequencing and comparing more &lt;jats italic=&quot;&quot;&gt;Ibidoecusi&lt;/jats&gt; species will help understand the unusual mt genome fragmentation in this genus.&lt;/jats&gt;&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">1 (1084)</style></issue><work-type><style face="normal" font="default" size="100%">Open Access</style></work-type></record></records></xml>