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title: Is There an Upper Limit to Genome Size?
author: Hidalgo, Oriane;  Pellicer, Jaume;  Christenhusz, Maarten;  Schneider, Harald;  Leitch, Andrew R.;  Leitch, Ilia J.
Issued Date: 2017
Abstract: At 50-fold the size of the human genome (3 Gb), the staggeringly huge genome of 147.3 Gb recently discovered in the fern Tmesipteris obliqua is comparable in size to those of the other plant and animal record-holders (i.e., Paris japonica, a flowering plant with a genome size of 148.8 Gb, and Protopterus aethiopicus, a lungfish with a genome of 130 Gb). The synthesis of available information on giant genomes suggests that the biological limit to genome size expansion in eukaryotes may have been reached. We propose several explanations for why the genomes of ferns, flowering plants, and lungfish, all of which have independently undergone dramatic increases in genome size through a variety of mechanisms, do not exceed 150 Gb.
Related URLs: 10.1016/j.tplants.2017.04.005
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Recommended Citation:
Hidalgo, Oriane,Pellicer, Jaume,Christenhusz, Maarten,et al. Is There An Upper Limit To Genome Size?[J]. Trends In Plant Science,2017,22(7):567-815.

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