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瑜jane

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金币: 9
帖子: 3
在线: 1.2小时
虫号: 2084478
注册: 2012-10-24
专业: 系统生物学

[求助] 请问有谁读过Mobile DNA in Old World Monkeys:A Glimpse Through the Rhesus

请问有哪位读过这篇文献，其中关于SVA的那段真的没读懂。逻辑上没想通。内容如下：
About 100 precursors of SVA were identified
in the rhesus macaque genome. The variable
number of tandemrepeat (VNTR) regions of these
elements share >90% identitywith theVNTRunit
in hominoid SVA elements (20), although they
have no sequence homology with other compo-nents of SVA elements. Thus, these elements ap-pear to have contributed a portion of the genetic
material required to form the SVA composite
retrotransposon family in hominoids. Themajority
of these elements are shared between human and
rhesus macaque, indicating that these elements
were active before the divergence of hominoids
and OWMs. The low number of lineage-specific
elements (~20 in the OWM lineage) suggests a
very low retrotransposition rate of SVA precursor
elements over the past 25 million years.

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