Horizontal transfer and proliferation of Tsu4 in Saccharomyces paradoxus.
Horizontal transfer and proliferation of Tsu4 in Saccharomyces paradoxus.
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DOI：
10.1186/s13100-018-0122-7
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发表时间：
2018
期刊：
影响因子：
4.9
通讯作者：
Bergman CM
中科院分区：
文献类型：
--
作者：
Bergman CM
最近的证据表明，水平转移在真核生物转座因子（TE）的进化中起着重要作用。在动物和植物中已经报道了许多水平TE转移（HTT）的情况，然而令人惊讶的是，在真菌中报道的HTT的例子很少。在这里，我报告了一个新的HTT事件的证据，涉及Tsu 4在奇异酵母菌的基础上（i）Tsu 4元件在S。paradoxus和S.（ii）Tsu 4在S. paradoxus和其姐妹种S.酿酒酵母，和（iii）Tsu 4序列和严格意义上的酵母菌群中的物种的系统发育史之间的不一致。现有的数据表明，HTT事件可能发生在南北极、新热带或印澳部分的某处。paradoxus种的分布范围，并与S. uvarum或S.优巴亚鱼是可能的供体物种。HTT事件导致了南美洲S. paradoxus，表现出部分生殖隔离与其他菌株的这个物种，因为多个相互易位。全长Tsu 4元件与这些相互易位之一的两个断点相关。这项工作表明，对源自长读序测序的基本完整基因组组装中的TE序列的全面分析为检测真菌和其他生物体中的HTT事件提供了新的机会。这项工作也提供了支持的假设，HTT和随后的TE增殖可以诱导基因组重排，有助于后合子分离酵母。本文的在线版本（10.1186/s13100-018-0122-7）包含补充材料，可供授权用户使用。
Recent evidence suggests that horizontal transfer plays a significant role in the evolution of of transposable elements (TEs) in eukaryotes. Many cases of horizontal TE transfer (HTT) been reported in animals and plants, however surprisingly few examples of HTT have been reported in fungi. Here I report evidence for a novel HTT event in fungi involving Tsu4 in Saccharomyces paradoxus based on (i) unexpectedly high similarity between Tsu4 elements in S. paradoxus and S. uvarum, (ii) a patchy distribution of Tsu4 in S. paradoxus and general absence from its sister species S. cerevisiae, and (iii) discordance between the phylogenetic history of Tsu4 sequences and species in the Saccharomyces sensu stricto group. Available data suggests the HTT event likely occurred somewhere in the Nearctic, Neotropic or Indo-Australian part of the S. paradoxus species range, and that a lineage related to S. uvarum or S. eubayanus was the likely donor species. The HTT event has led to massive proliferation of Tsu4 in the South American lineage of S. paradoxus, which exhibits partial reproductive isolation with other strains of this species because of multiple reciprocal translocations. Full-length Tsu4 elements are associated with both breakpoints of one of these reciprocal translocations. This work shows that comprehensive analysis of TE sequences in essentially-complete genome assemblies derived from long-read sequencing provides new opportunities to detect HTT events in fungi and other organisms. This work also provides support for the hypothesis that HTT and subsequent TE proliferation can induce genome rearrangements that contribute to post-zygotic isolation in yeast. The online version of this article (10.1186/s13100-018-0122-7) contains supplementary material, which is available to authorized users.
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DOI：
10.1128/genomea.01194-17
发表时间：
2017-10-26
期刊：
Genome announcements
影响因子：
--
作者：
Liu C;Li Q;Niu C;Zheng F;Li Y;Zhao Y;Yin X
通讯作者：
Yin X
影响因子：
10.7
作者：
Baker E;Wang B;Bellora N;Peris D;Hulfachor AB;Koshalek JA;Adams M;Libkind D;Hittinger CT
通讯作者：
Hittinger CT
影响因子：
2.6
作者：
Liti, G;Peruffo, A;Louis, EJ
通讯作者：
Louis, EJ
影响因子：
7
作者：
Kim, JM;Vanguri, S;Voytas, DF
通讯作者：
Voytas, DF
影响因子：
9.2
作者：
Hou, Jing;Friedrich, Anne;de Montigny, Jacky;Schacherer, Joseph
通讯作者：
Schacherer, Joseph