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@article{2386435,
author = {Bureš, Petr and Elliott, Tammy L and Veselý, Pavel and Šmarda, Petr and Forest, Felix and Leitch, Ilia J. and Lughadha, Eimear Nic and Gomez, Marybel Soto and Pironon, Samuel and Brown, Matilda J. M. and Šmerda, Jakub and Zedek, František},
article_location = {HOBOKEN},
article_number = {2},
doi = {http://dx.doi.org/10.1111/nph.19544},
keywords = {chromosome size; flowering plants; geographic range size; latitudinal gradient; nuclear DNA content; polyploidy; temperature; UV-B radiation},
language = {eng},
issn = {0028-646X},
journal = {New Phytologist},
title = {The global distribution of angiosperm genome size is shaped by climate},
url = {https://doi.org/10.1111/nph.19544},
volume = {242},
year = {2024}
}
TY - JOUR
ID - 2386435
AU - Bureš, Petr - Elliott, Tammy L - Veselý, Pavel - Šmarda, Petr - Forest, Felix - Leitch, Ilia J. - Lughadha, Eimear Nic - Gomez, Marybel Soto - Pironon, Samuel - Brown, Matilda J. M. - Šmerda, Jakub - Zedek, František
PY - 2024
TI - The global distribution of angiosperm genome size is shaped by climate
JF - New Phytologist
VL - 242
IS - 2
SP - 744-759
EP - 744-759
PB - Blackwell Science
SN - 0028646X
KW - chromosome size
KW - flowering plants
KW - geographic range size
KW - latitudinal gradient
KW - nuclear DNA content
KW - polyploidy
KW - temperature
KW - UV-B radiation
UR - https://doi.org/10.1111/nph.19544
N2 - center dot Angiosperms, which inhabit diverse environments across all continents, exhibit significant variation in genome sizes, making them an excellent model system for examining hypotheses about the global distribution of genome size. These include the previously proposed large genome constraint, mutational hazard, polyploidy-mediated, and climate-mediated hypotheses.center dot We compiled the largest genome size dataset to date, encompassing 16 017 (> 5% of known) angiosperm species, and analyzed genome size distribution using a comprehensive geographic distribution dataset for all angiosperms.center dot We observed that angiosperms with large range sizes generally had small genomes, supporting the large genome constraint hypothesis. Climate was shown to exert a strong influence on genome size distribution along the global latitudinal gradient, while the frequency of polyploidy and the type of growth form had negligible effects. In contrast to the unimodal patterns along the global latitudinal gradient shown by plant size traits and polyploid proportions, the increase in angiosperm genome size from the equator to 40-50 degrees N/S is probably mediated by different (mostly climatic) mechanisms than the decrease in genome sizes observed from 40 to 50 degrees N northward.center dot Our analysis suggests that the global distribution of genome sizes in angiosperms is mainly shaped by climatically mediated purifying selection, genetic drift, relaxed selection, and environmental filtering.
ER -
BUREŠ, Petr, Tammy L ELLIOTT, Pavel VESELÝ, Petr ŠMARDA, Felix FOREST, Ilia J. LEITCH, Eimear Nic LUGHADHA, Marybel Soto GOMEZ, Samuel PIRONON, Matilda J. M. BROWN, Jakub ŠMERDA a František ZEDEK. The global distribution of angiosperm genome size is shaped by climate. \textit{New Phytologist}. HOBOKEN: Blackwell Science, 2024, roč.~242, č.~2, s.~744-759. ISSN~0028-646X. Dostupné z: https://dx.doi.org/10.1111/nph.19544.
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