linkedin post 2016-05-07 06:10:36

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VISION AND ECHOLOCATION. "Our genome-wide analysis shows that natural selection has acted on three echolocating lineages (cetaceans and two separate bat lineages) to produce a complex pattern of changes in protein sequence, including both divergent and, more surprisingly, extensive convergent changes." https://lnkd.in/epGtvrz View in LinkedIn
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linkedin post 2016-05-05 05:18:30

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COW MILK. "Recently Zempleni and co-workers have demonstrated that humans seem to absorb cow milk derived microRNAs in significant concentrations and that these microRNAs seem to affect gene expression in human white blood cells, cultured kidney cells, and mouse liver." https://lnkd.in/erkHGt5 View in LinkedIn
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linkedin post 2016-05-07 06:06:43

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ECHOLOCATION. "Here we analyse genomic sequence data in mammals that have independently evolved echolocation and show that convergence is not a rare process restricted to several loci but is instead widespread, continuously distributed and commonly driven by natural selection acting on a small number of sites per locus." https://lnkd.in/epGtvrz View in LinkedIn
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linkedin post 2016-05-07 06:02:19

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BAT ECHOLOCATION. "Divergent clades of echolocating bats seem to have undergone convergent amino acid replacements in several genes implicated in hearing. Furthermore, some candidate hearing genes also show parallel changes in echolocating bats and whales, again suggesting roles in high-frequency hearing." https://lnkd.in/epGtvrz View in LinkedIn
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linkedin post 2016-05-07 05:57:39

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TOXIC TOAD FEEDING REPTILES. "Importantly, resistance in all taxa is mediated by replacements of 2 of the 12 amino acids comprising the Na+/K+-ATPase H1–H2 extracellular domain that constitutes a core part of the cardiac glycoside binding site." Exquisite sensitivity. https://lnkd.in/e8bgnWm View in LinkedIn
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linkedin post 2016-05-07 05:51:58

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SIMPLEST RESISTANCE. "In toad-feeding reptiles, resistance is conferred by two point mutations that have evolved convergently on four occasions, whereas evidence of a molecular reversal back to the susceptible state in varanid lizards migrating to toad-free areas suggests that toxin resistance is maladaptive in the absence of selection." https://lnkd.in/e8bgnWm View in LinkedIn
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