Evolution of genome space occupation in ferns : linking genome diversity and species richness

Background and Aims: The dynamics of genome evolution caused by whole genome duplications and other processes are hypothesized to shape the diversification of plants and thus contribute to the astonishing variation in species richness among the main lineages of land plants. Ferns, the second most sp...

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Autores principales: Fujiwara, Tao, Liu, Hongmei, Meza Torres, Esteban Ismael, Morero, Rita Ema, Vega, Álvaro José, Liang, Zhenlong, Ebihara, Atsushi, Leitch, Ilia J., Schneider, Harald
Formato: Artículo
Lenguaje:Inglés
Publicado: Oxford University Press 2025
Materias:
DNA C-values
genome evolution
genome size
macroevolution
polyploidy
pteridophytes
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/58286
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-58286
record_format dspace
spelling I48-R184-123456789-582862025-10-22T14:16:14Z Evolution of genome space occupation in ferns : linking genome diversity and species richness Fujiwara, Tao Liu, Hongmei Meza Torres, Esteban Ismael Morero, Rita Ema Vega, Álvaro José Liang, Zhenlong Ebihara, Atsushi Leitch, Ilia J. Schneider, Harald DNA C-values genome evolution genome size macroevolution polyploidy pteridophytes Background and Aims: The dynamics of genome evolution caused by whole genome duplications and other processes are hypothesized to shape the diversification of plants and thus contribute to the astonishing variation in species richness among the main lineages of land plants. Ferns, the second most species-rich lineage of land plants, are highly suitable to test this hypothesis because of several unique features that distinguish fern genomes from those of seed plants. In this study, we tested the hypothesis that genome diversity and disparity shape fern species diversity by recording several parameters related to genome size and chromosome number. Methods: We conducted de novo measurement of DNA C-values across the fern phylogeny to reconstruct the phylogenetic history of the genome space occupation in ferns by integrating genomic parameters such as genome size, chromosome number and average DNA amount per chromosome into a time-scaled phylogenetic framework. Using phylogenetic generalized least square methods, we determined correlations between chromosome number and genome size, species diversity and evolutionary rates of their transformation. Key Results: The measurements of DNA C-values for 233 species more than doubled the taxon coverage from ~2.2 % in previous studies to 5.3 % of extant diversity. The dataset not only documented substantial differences in the accumulation of genomic diversity and disparity among the major lineages of ferns but also supported the predicted correlation between species diversity and the dynamics of genome evolution. Conclusions: Our results demonstrated substantial genome disparity among different groups of ferns and supported the prediction that alterations of reproductive modes alter trends of genome evolution. Finally, we recovered evidence for a close link between the dynamics of genome evolution and species diversity in ferns for the first time. 2025-08-28T13:36:56Z 2025-08-28T13:36:56Z 2023-01-01 Artículo Fujiwara, Tao, et al., 2023. Evolution of genome space occupation in ferns : linking genome diversity and species richness. Annals of Botany. Oxford: Oxford University Press, vol. 131, no. 1, p. 59-70. E-ISSN 1095-8290. DOI https://doi.org/10.1093/aob/mcab094 0305-7364 http://repositorio.unne.edu.ar/handle/123456789/58286 eng https://doi.org/10.1093/aob/mcab094 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 59-70 application/pdf Oxford University Press Annals of Botany, 2023, vol. 131, no. 1, p. 59-70.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic DNA C-values
genome evolution
genome size
macroevolution
polyploidy
pteridophytes
spellingShingle DNA C-values
genome evolution
genome size
macroevolution
polyploidy
pteridophytes
Fujiwara, Tao
Liu, Hongmei
Meza Torres, Esteban Ismael
Morero, Rita Ema
Vega, Álvaro José
Liang, Zhenlong
Ebihara, Atsushi
Leitch, Ilia J.
Schneider, Harald
Evolution of genome space occupation in ferns : linking genome diversity and species richness
topic_facet DNA C-values
genome evolution
genome size
macroevolution
polyploidy
pteridophytes
description Background and Aims: The dynamics of genome evolution caused by whole genome duplications and other processes are hypothesized to shape the diversification of plants and thus contribute to the astonishing variation in species richness among the main lineages of land plants. Ferns, the second most species-rich lineage of land plants, are highly suitable to test this hypothesis because of several unique features that distinguish fern genomes from those of seed plants. In this study, we tested the hypothesis that genome diversity and disparity shape fern species diversity by recording several parameters related to genome size and chromosome number. Methods: We conducted de novo measurement of DNA C-values across the fern phylogeny to reconstruct the phylogenetic history of the genome space occupation in ferns by integrating genomic parameters such as genome size, chromosome number and average DNA amount per chromosome into a time-scaled phylogenetic framework. Using phylogenetic generalized least square methods, we determined correlations between chromosome number and genome size, species diversity and evolutionary rates of their transformation. Key Results: The measurements of DNA C-values for 233 species more than doubled the taxon coverage from ~2.2 % in previous studies to 5.3 % of extant diversity. The dataset not only documented substantial differences in the accumulation of genomic diversity and disparity among the major lineages of ferns but also supported the predicted correlation between species diversity and the dynamics of genome evolution. Conclusions: Our results demonstrated substantial genome disparity among different groups of ferns and supported the prediction that alterations of reproductive modes alter trends of genome evolution. Finally, we recovered evidence for a close link between the dynamics of genome evolution and species diversity in ferns for the first time.
format Artículo
author Fujiwara, Tao
Liu, Hongmei
Meza Torres, Esteban Ismael
Morero, Rita Ema
Vega, Álvaro José
Liang, Zhenlong
Ebihara, Atsushi
Leitch, Ilia J.
Schneider, Harald
author_facet Fujiwara, Tao
Liu, Hongmei
Meza Torres, Esteban Ismael
Morero, Rita Ema
Vega, Álvaro José
Liang, Zhenlong
Ebihara, Atsushi
Leitch, Ilia J.
Schneider, Harald
author_sort Fujiwara, Tao
title Evolution of genome space occupation in ferns : linking genome diversity and species richness
title_short Evolution of genome space occupation in ferns : linking genome diversity and species richness
title_full Evolution of genome space occupation in ferns : linking genome diversity and species richness
title_fullStr Evolution of genome space occupation in ferns : linking genome diversity and species richness
title_full_unstemmed Evolution of genome space occupation in ferns : linking genome diversity and species richness
title_sort evolution of genome space occupation in ferns : linking genome diversity and species richness
publisher Oxford University Press
publishDate 2025
url http://repositorio.unne.edu.ar/handle/123456789/58286
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