Archaeogenomic evidence of punctuated genome evolution in Gossypium.
Archaeogenomic evidence of punctuated genome evolution in Gossypium.
复制标题
棉花间断基因组进化的考古基因组证据。
DOI:
10.1093/molbev/mss070
复制
发表时间:
2012
影响因子:
10.7
通讯作者:
Palmer SA
中科院分区:
文献类型:
--
作者:
Palmer SA
Transposable elements (TEs) are drivers of evolution resulting in episodic surges of genetic innovation and genomic reorganization (Oliver KR, Greene WK. 2009. TEs: powerful facilitators of evolution.Bioessays31:703–714.), but there is little evidence of the timescale in which this process has occurred (Gingerich PD. 2009. Rates of evolution.Ann Rev Ecol Evol Syst. 40:657–675.). The paleontological and archaeological records provide direct evidence for how evolution has proceeded in the past, which can be accessed through ancient DNA to examine genomes using high-throughput sequencing technologies (Palmer SA, Smith O, Allaby RG. 2011. The blossoming of plant archaeogenetics.Ann Anat. 194:146–156.). In this study, we report shotgun sequencing of four archaeological samples of cotton using the GS 454 FLX platform, which enabled reconstruction of the TE composition of these past genomes and species identification. From this, a picture of lineage specific evolutionary patterns emerged, even over the relatively short timescale of a few thousand years. Genomic stability was observed between South AmericanGossypium barbadensesamples separated by over 2,000 miles and 3,000 years. In contrast, the TE composition of ancient Nubian cotton, identified asG. herbaceum, differed dramatically from that of modernG. herbaceumand resembled closely theAgenome of the New World tetraploids. Our analysis has directly shown that considerable genomic reorganization has occurred within the history of a domesticated plant species while genomic stability has occurred in closely related species. A pattern of episodes of rapid change and periods of stability is expected of punctuated evolution. This observation is important to understanding the process of evolution under domestication.
登录
查看更多内容
影响因子:
11.4
作者:
Venner, Samuel;Feschotte, Cedric;Biemont, Christian
通讯作者:
Biemont, Christian
影响因子:
3.7
作者:
Ramírez O;Gigli E;Bover P;Alcover JA;Bertranpetit J;Castresana J;Lalueza-Fox C
通讯作者:
Lalueza-Fox C
DOI:
--
发表时间:
1996
期刊:
Proceedings of the Royal Society of London. Series B: Biological Sciences
影响因子:
--
作者:
K. O'Donoghue;A. Clapham;R. Evershed;T. Brown
通讯作者:
T. Brown
影响因子:
64.8
作者:
通讯作者:
--
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
B. Owen
通讯作者:
B. Owen