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Gene duplication is one of the major sources for the origin of new genes and new functions. However, how a new duplicate gene acquires functions by integrating into a pathway and results in adaptively important phenotypes has remained largely unknown.
Recently, WANG Wen and his colleagues from Kunming Institute of Zoology,Chinese Academy of Sciences, has systematically investigated the biol... more |
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The traditional wisdom in evolutionary genetics is that essential genes are usually the older ones that have been maintained over long evolutionary time frames. Two studies of young genes in species of Drosophila reveal that in fact essential genes are just as likely to be young, and that new genes can quickly integrate themselves into key pathways to take on essential roles.
Chen and colle... more |
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| Gibbons are small apes usually live in monogamous territorial family groups typically consisting of an adult pair and 1–3 immature offspring. All gibbon species produce elaborate, loud, long, and stereotyped patterns of vocalization often referred to as songs. Gibbon songs are species-specific and usually produced early in the morning. Individuals of H. klossii and H. moloch produce solo songs... more |
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| The Kurixalus odontotarsus species group includes K. odontotarsus, K. hainanus, K. verrucosus, and K. bisacculus. Owing to the morphological similarity, controversies have lasted for a long time on the taxonomy and species boundary within the K. odontotarsus species group. In addition, recent molecular phylogenetic studies indicated that the traditional Philautus can be divided into two genera ... more |
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| The wide influence of the climatic oscillation and the related ecological changes around the Last Glacial Maximum (LGM) on driving prehistoric dispersal and cultural transitions of modern human has been widely acknowledged among archaeologists. Using the phylogeographic analyses of specific molecular markers, the ancient dispersal around the LGM was indicated to leave some geographic signatures... more |
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