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Genes 2018, 9(2), 88; doi:10.3390/genes9020088

Genome Size Diversity and Its Impact on the Evolution of Land Plants

Department of Comparative Plant and Fungal Biology, Royal Botanic Gardens, Kew TW9 3DS, UK
Author to whom correspondence should be addressed.
Received: 10 January 2018 / Revised: 2 February 2018 / Accepted: 5 February 2018 / Published: 14 February 2018
(This article belongs to the Special Issue Evolution and Biodiversity of the Plant Genome Architecture)
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Genome size is a biodiversity trait that shows staggering diversity across eukaryotes, varying over 64,000-fold. Of all major taxonomic groups, land plants stand out due to their staggering genome size diversity, ranging ca. 2400-fold. As our understanding of the implications and significance of this remarkable genome size diversity in land plants grows, it is becoming increasingly evident that this trait plays not only an important role in shaping the evolution of plant genomes, but also in influencing plant community assemblages at the ecosystem level. Recent advances and improvements in novel sequencing technologies, as well as analytical tools, make it possible to gain critical insights into the genomic and epigenetic mechanisms underpinning genome size changes. In this review we provide an overview of our current understanding of genome size diversity across the different land plant groups, its implications on the biology of the genome and what future directions need to be addressed to fill key knowledge gaps. View Full-Text
Keywords: genome size; polyploidy; transposable elements; C-value; giant genome genome size; polyploidy; transposable elements; C-value; giant genome

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Pellicer, J.; Hidalgo, O.; Dodsworth, S.; Leitch, I.J. Genome Size Diversity and Its Impact on the Evolution of Land Plants. Genes 2018, 9, 88.

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