One of the main topics in population genetics is the identification of adaptive selection among *** this aim,population history should be correctly inferred to access the effect of random drift and exclude it in selec...
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One of the main topics in population genetics is the identification of adaptive selection among *** this aim,population history should be correctly inferred to access the effect of random drift and exclude it in selection *** the rapid progress in genomics in the past decade,vast genome-scale variations are available for population genetic analysis,which however requires more sophisticated and more robust models to infer species’ demographic history.
The panda lineage dates back to the late Miocene(1) and ultimately leads to only one extant species, the giant panda (Ailuropoda melanoleuca). Although global climate change and anthropogenic disturbances are recogniz...
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The panda lineage dates back to the late Miocene(1) and ultimately leads to only one extant species, the giant panda (Ailuropoda melanoleuca). Although global climate change and anthropogenic disturbances are recognized to shape animal population demography(2,3) their contribution to panda population dynamics remains largely unknown. We sequenced the whole genomes of 34 pandas at an average 4.7-fold coverage and used this data set together with the previously deep-sequenced panda genome(4) to reconstruct a continuous demographic history of pandas from their origin to the present. We identify two population expansions, two bottlenecks and two divergences. Evidence indicated that, whereas global changes in climate were the primary drivers of population fluctuation for millions of years, human activities likely underlie recent population divergence and serious decline. We identified three distinct panda populations that show genetic adaptation to their environments. However, in all three populations, anthropogenic activities have negatively affected pandas for 3,000 years.
This study surveyed the mass concentrations of PM10, PM4.0 and PM2.5 of indoor air of office building, dorm building and teaching building of a university in Zhengzhou. The comparison results contribute to the analysi...
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It is commonly known that many species have experienced range contraction during past centuries due to accelerated impacts of human activities and global change,yet little is known on how climate change and human dist...
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It is commonly known that many species have experienced range contraction during past centuries due to accelerated impacts of human activities and global change,yet little is known on how climate change and human disturbance have affected the range shift of animals over past millennia,mainly due to a lack of historical
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