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Punctuated genome size evolution in Liliaceae.
J Evol Biol 2007; 20(6):2296-308JE

Abstract

Most angiosperms possess small genomes (mode 1C = 0.6 pg, median 1C = 2.9 pg). Those with truly enormous genomes (i.e. > or = 35 pg) are phylogenetically restricted to a few families and include Liliaceae - with species possessing some of the largest genomes so far reported for any plant as well as including species with much smaller genomes. To gain insights into when and where genome size expansion took place during the evolution of Liliaceae and the mode and tempo of this change, data for 78 species were superimposed onto a phylogenetic tree and analysed. Results suggest that genome size in Liliaceae followed a punctuated rather than gradual mode of evolution and that most of the diversification evolved recently rather than early in the evolution of the family. We consider that the large genome sizes of Liliaceae may have emerged passively rather than being driven primarily by selection.

Authors+Show Affiliations

Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey, UK. i.leitch@kew.orgNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17956392

Citation

Leitch, I J., et al. "Punctuated Genome Size Evolution in Liliaceae." Journal of Evolutionary Biology, vol. 20, no. 6, 2007, pp. 2296-308.
Leitch IJ, Beaulieu JM, Cheung K, et al. Punctuated genome size evolution in Liliaceae. J Evol Biol. 2007;20(6):2296-308.
Leitch, I. J., Beaulieu, J. M., Cheung, K., Hanson, L., Lysak, M. A., & Fay, M. F. (2007). Punctuated genome size evolution in Liliaceae. Journal of Evolutionary Biology, 20(6), pp. 2296-308.
Leitch IJ, et al. Punctuated Genome Size Evolution in Liliaceae. J Evol Biol. 2007;20(6):2296-308. PubMed PMID: 17956392.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Punctuated genome size evolution in Liliaceae. AU - Leitch,I J, AU - Beaulieu,J M, AU - Cheung,K, AU - Hanson,L, AU - Lysak,M A, AU - Fay,M F, PY - 2007/10/25/pubmed PY - 2007/12/12/medline PY - 2007/10/25/entrez SP - 2296 EP - 308 JF - Journal of evolutionary biology JO - J. Evol. Biol. VL - 20 IS - 6 N2 - Most angiosperms possess small genomes (mode 1C = 0.6 pg, median 1C = 2.9 pg). Those with truly enormous genomes (i.e. > or = 35 pg) are phylogenetically restricted to a few families and include Liliaceae - with species possessing some of the largest genomes so far reported for any plant as well as including species with much smaller genomes. To gain insights into when and where genome size expansion took place during the evolution of Liliaceae and the mode and tempo of this change, data for 78 species were superimposed onto a phylogenetic tree and analysed. Results suggest that genome size in Liliaceae followed a punctuated rather than gradual mode of evolution and that most of the diversification evolved recently rather than early in the evolution of the family. We consider that the large genome sizes of Liliaceae may have emerged passively rather than being driven primarily by selection. SN - 1010-061X UR - https://www.unboundmedicine.com/medline/citation/17956392/Punctuated_genome_size_evolution_in_Liliaceae_ L2 - https://doi.org/10.1111/j.1420-9101.2007.01416.x DB - PRIME DP - Unbound Medicine ER -