Archaeogenomic evidence of punctuated genome evolution in Gossypium

Molecular Biology and Evolution
Sarah A PalmerRobin G Allaby

Abstract

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. Bioessays 31:703-714.), 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 American Gossypium barbadense samples separated by over 2,000 miles and 3,000 years. In contrast, the TE composition of ancient Nubian ...Continue Reading

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Citations

Sep 26, 2013·Genome Biology and Evolution·Keith R OliverWayne K Greene
Dec 10, 2014·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Robin G AllabyOliver Smith
Dec 10, 2014·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Clio Der SarkissianLudovic Orlando
Jun 29, 2017·Molecular Biology and Evolution·Oliver SmithRobin G Allaby
Apr 10, 2019·Nature Plants·Oliver SmithRobin G Allaby
May 10, 2017·Nucleic Acids Research·Logan KistlerRobin G Allaby
Sep 14, 2020·The Plant Journal : for Cell and Molecular Biology·Susan M MoengaDouglas R Cook
Mar 5, 2021·Vavilovskiĭ Zhurnal Genetiki I Selekt︠s︡ii·T M Khlebodarova, V A Likhoshvai
May 7, 2021·PeerJ·Vitaly A Likhoshvai, Tamara M Khlebodarova

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