Morphological rates of angiosperm seed size evolution

Evolution; International Journal of Organic Evolution
Hallie J Sims

Abstract

The evolution of seed size among angiosperms reflects their ecological diversification in a complex fitness landscape of life-history strategies. The lineages that have evolved seeds beyond the upper and lower boundaries that defined nonflowering seed plants since the Paleozoic are more dispersed across the angiosperm phylogeny than would be expected under a neutral model of phenotypic evolution. Morphological rates of seed size evolution estimated for 40 clades based on 17,375 species ranged from 0.001 (Garryales) to 0.207 (Malvales). Comparative phylogenetic analysis indicated that morphological rates are not associated with the clade's seed size but are negatively correlated with the clade's position in the overall distribution of angiosperm seed sizes; clades with seed sizes closer to the angiosperm mean had significantly higher morphological rates than clades with extremely small or extremely large seeds. Likewise, per-clade taxonomic diversification rates are not associated with the seed size of the clade but with where the clade falls within the angiosperm seed size distribution. These results suggest that evolutionary rates (morphological and taxonomic) are elevated in densely occupied regions of the seed morphospace re...Continue Reading

References

Mar 26, 2014·American Journal of Botany·Joseph H WilliamsBrian C O'Meara

Citations

Oct 30, 2001·Evolution; International Journal of Organic Evolution·Susana Magallón, Michael J Sanderson
Dec 19, 2002·Evolution; International Journal of Organic Evolution·Tara A ForbisAlan de Queiroz
Jun 5, 2003·Evolution; International Journal of Organic Evolution·Simon P BlombergAnthony R Ives
Jan 22, 2004·Bioinformatics·Emmanuel ParadisKorbinian Strimmer
Feb 1, 2005·Science·Angela T MolesMark Westoby
Jul 21, 2005·Proceedings of the National Academy of Sciences of the United States of America·Angela T MolesMark Westoby
Dec 7, 2005·Proceedings of the National Academy of Sciences of the United States of America·Venkatesan Sundaresan
Jul 5, 2006·Evolution; International Journal of Organic Evolution·Brian C O'MearaPeter C Wainwright
Apr 28, 2007·Systematic Biology·Anthony R IvesTheodore Garland
Nov 16, 2007·Proceedings of the National Academy of Sciences of the United States of America·Gene Hunt
Aug 19, 2008·Systematic Biology·Liam J RevellDavid C Collar
Feb 19, 2009·Proceedings of the National Academy of Sciences of the United States of America·Hengchang WangDouglas E Soltis
Oct 22, 2009·Proceedings of the National Academy of Sciences of the United States of America·David D Ackerly
Apr 17, 2010·Bioinformatics·Steven W KembelCampbell O Webb
Jul 28, 2010·Evolution; International Journal of Organic Evolution·Douglas J Futuyma
Oct 23, 2010·Journal of Evolutionary Biology·N CooperR P Freckleton
Jan 1, 2009·American Journal of Botany·Susana Magallón, Amanda Castillo
Apr 24, 2012·Evolution; International Journal of Organic Evolution·Hallie J Sims
Dec 1, 2004·The American Naturalist·Marguerite A Butler, Aaron A King

Related Concepts

Malvales
Phylogeny
Liliopsida
Angiosperms
Evolution, Molecular
Garryales

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Sexual Dimorphism in Neurodegeneration

There exist sex differences in neurodevelopmental and neurodegenerative disorders. For instance, multiple sclerosis is more common in women, whereas Parkinson’s disease is more common in men. Here is the latest research on sexual dimorphism in neurodegeneration

HLA Genetic Variation

HLA genetic variation has been found to confer risk for a wide variety of diseases. Identifying these associations and understanding their molecular mechanisms is ongoing and holds promise for the development of therapeutics. Find the latest research on HLA genetic variation here.

Super-resolution Microscopy

Super-resolution microscopy is the term commonly given to fluorescence microscopy techniques with resolutions that are not limited by the diffraction of light. Here are the latest discoveries pertaining to super-resolution microscopy.

Genetic Screens in iPSC-derived Brain Cells

Genetic screening is a critical tool that can be employed to define and understand gene function and interaction. This feed focuses on genetic screens conducted using induced pluripotent stem cell (iPSC)-derived brain cells.

Brain Lower Grade Glioma

Low grade gliomas in the brain form from oligodendrocytes and astrocytes and are the slowest-growing glioma in adults. Discover the latest research on these brain tumors here.

CD4/CD8 Signaling

Cluster of differentiation 4 and 8 (CD8 and CD8) are glycoproteins founds on the surface of immune cells. Here is the latest research on their role in cell signaling pathways.

Alignment-free Sequence Analysis Tools

Alignment-free sequence analyses have been applied to problems ranging from whole-genome phylogeny to the classification of protein families, identification of horizontally transferred genes, and detection of recombined sequences. Here is the latest research.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Related Papers

Evolution; International Journal of Organic Evolution
Susana Magallón, Michael J Sanderson
Evolution; International Journal of Organic Evolution
M Verdú
Proceedings of the National Academy of Sciences of the United States of America
M Foote
© 2020 Meta ULC. All rights reserved