SARS病毒让我们看到病毒的快速进化,后来我们从世界各地病人中分离出的病毒测序后,很清晰地显示出了它的进化历程。
l(q ,<[O d[35d J7F 我不知道信奉《创世纪》的人是如何看待这一现象的。
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;$tSb ~K+ 也许我们错怪了果子狸? 维基百科说它是来源于蝙蝠的。
3,=6@U |CzSU1ma SARS is most closely related to group 2 coronaviruses, but it does not segregate into any of the other three groups of coronaviruses. A theory has been proposed that bat coronaviruses have been coevolved with their hosts for a long time
then jumped species from bats to humans.[13][14] The closest outgroup to the coronaviruses are the toroviruses, with which it has homology in the ORF 1b replicase and the two viron proteins of S and M. SARS was determined to be an early split off from the group 2 coronaviruses based on a set of conserved domains that it shares with group 2.
g*"P:n71 frQ{iUx A main difference between group 2 coronavirus and SARS is the nsp3 replicase subunit encoded by ORF1a. SARS does not have a papain-like proteinase 1.
[ 此帖被伍胥之在04-10-2016 05:16重新编辑 ]