Simultaneous TE Analysis of 19 Heliconiine Butterflies Yields Novel Insights into Rapid TE-Based Genome Diversification and Multiple SINE Births and Deaths
Simultaneous TE Analysis of 19 Heliconiine Butterflies Yields Novel Insights into Rapid TE-Based Genome Diversification and Multiple SINE Births and Deaths
复制标题
对 19 只 Heliconiine 蝴蝶进行同步 TE 分析，对基于 TE 的基因组快速多样化和多个 SINE 出生和死亡产生新的见解
DOI：
10.1093/gbe/evz125
复制
发表时间：
2019
影响因子：
3.3
通讯作者：
Stevens, Richard D
中科院分区：
文献类型：
--
作者：
Ray, David A;Grimshaw, Jenna R;Halsey, Michaela K;Korstian, Jennifer M;Osmanski, Austin B;Sullivan, Kevin A;Wolf, Kristen A;Reddy, Harsith;Foley, Nicole;Stevens, Richard D
转座元件（TE）在基因组结构和功能的进化中发挥着重要作用。然而，由于它们的重复性，它们很难注释，并且发现它们在谱系中可能扮演的特定角色可能是一项艰巨的任务。 Heliconiine 蝴蝶是研究多种进化过程（包括表型进化和杂交）的模型。我们试图通过对基因组最近测序的 19 个物种的 TE 含量和积累进行详细检查，来确定 TE 如何在该分支内的基因组多样化中发挥作用。我们发现，由于几个分支拥有共同的祖先，每个谱系都拥有独特的 TE 库，因此 TE 内容在当时已经发生了巨大而迅速的分化。已经建立了几种仅限于物种子集的新 SINE 谱系。此外，之前描述的 SINE、Metulj 似乎已经在两个分支中灭绝，同时在其他分支中数量激增。 TE 含量和活性的这种多样性有可能影响葫芦碱蝴蝶的持续进化和分化。
Transposable elements (TEs) play major roles in the evolution of genome structure and function. However, because of their repetitive nature, they are difficult to annotate and discovering the specific roles they may play in a lineage can be a daunting task. Heliconiine butterflies are models for the study of multiple evolutionary processes including phenotype evolution and hybridization. We attempted to determine how TEs may play a role in the diversification of genomes within this clade by performing a detailed examination of TE content and accumulation in 19 species whose genomes were recently sequenced. We found that TE content has diverged substantially and rapidly in the time since several subclades shared a common ancestor with each lineage harboring a unique TE repertoire. Several novel SINE lineages have been established that are restricted to a subset of species. Furthermore, the previously described SINE, Metulj, appears to have gone extinct in two subclades while expanding to significant numbers in others. This diversity in TE content and activity has the potential to impact how heliconiine butterflies continue to evolve and diverge.
登录
查看更多内容
影响因子：
4.9
作者：
Oliver KR;Greene WK
通讯作者：
Greene WK
DOI：
10.1073/pnas.92.17.8050
发表时间：
1995-08-15
影响因子：
11.1
作者：
PETROV, DA;SCHUTZMAN, JL;LOZOVSKAYA, ER
通讯作者：
LOZOVSKAYA, ER
影响因子：
10.7
作者：
Kumar, Sudhir;Stecher, Glen;Tamura, Koichiro
通讯作者：
Tamura, Koichiro
影响因子：
10.7
作者：
Lewis, James J.;Reed, Robert D.
通讯作者：
Reed, Robert D.
DOI：
10.1073/pnas.94.15.7704
发表时间：
1997-07-22
影响因子：
11.1
作者：
Kidwell, MG;Lisch, D
通讯作者：
Lisch, D