Suntsov V V, Suntsova N I
Izv Akad Nauk Ser Biol. 2009 Nov-Dec(6):645-53.
The saltation origin of the causative agent of the plague Yersinia pestis from the pseudotuberculosis microbe Y. pseudotuberculosis O:1b has been proclaimed in recent investigations on molecular genetics. The speciation process in this case is proposed to be connected with horizontal inclusion of exogenous genetic structures (such as specific plasmids pFra and pPst) into the genome of the ancestral form. The alternative "Darwinian" model of the gradual origin of the plague agent is proposed based on ecological factors. The comparison of two evolutionary scenarios, saltation and gradual, is performed; the latter seems more likely.
在最近的分子遗传学研究中，有人宣称鼠疫病原体耶尔森氏鼠疫杆菌起源于假结核微生物假结核耶尔森氏菌O:1b的跳跃式起源。在这种情况下，物种形成过程被认为与外源遗传结构（如特定质粒pFra和pPst）水平纳入原始形态的基因组有关。基于生态因素，提出了鼠疫病原体渐进起源的另一种“达尔文式”模型。对跳跃式和渐进式这两种进化情景进行了比较；后者似乎更有可能。
