skip to main content
Idioma:

Evolutionary dynamics of genome size in a radiation of woody plants

Moeglein, Morgan K. ; Chatelet, David S. ; Donoghue, Michael J. ; Edwards, Erika J.

American journal of botany, 2020-11, Vol.107 (11), p.1527-1541 [Periódico revisado por pares]

United States: Botanical Society of America, Inc

Texto completo disponível

Citações Citado por
  • Título:
    Evolutionary dynamics of genome size in a radiation of woody plants
  • Autor: Moeglein, Morgan K. ; Chatelet, David S. ; Donoghue, Michael J. ; Edwards, Erika J.
  • Assuntos: Adoxaceae ; cell size ; Chromosome number ; chromosome number evolution ; Chromosomes ; Evolution ; Evolution, Molecular ; Genome Size ; Genome, Plant ; Genomes ; Humans ; leaf anatomy ; Leaves ; Phylogenetics ; Phylogeny ; Physiology ; Ploidy ; Polyploidy ; Radiation ; Size reduction ; Trends ; Viburnum ; Woody plants
  • É parte de: American journal of botany, 2020-11, Vol.107 (11), p.1527-1541
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: PREMISE Plant genome size ranges widely, providing many opportunities to examine how genome size variation affects plant form and function. We analyzed trends in chromosome number, genome size, and leaf traits for the woody angiosperm clade Viburnum to examine the evolutionary associations, functional implications, and possible drivers of genome size. METHODS Chromosome counts and genome size estimates were mapped onto a Viburnum phylogeny to infer the location and frequency of polyploidization events and trends in genome size evolution. Genome size was analyzed with leaf anatomical and physiological data to evaluate the influence of genome size on plant function. RESULTS We discovered nine independent polyploidization events, two reductions in base chromosome number, and substantial variation in genome size with a slight trend toward genome size reduction in polyploids. We did not find strong relationships between genome size and the functional and morphological traits that have been highlighted at broader phylogenetic scales. CONCLUSIONS Polyploidization events were sometimes associated with rapid radiations, demonstrating that polyploid lineages can be highly successful. Relationships between genome size and plant physiological function observed at broad phylogenetic scales may be largely irrelevant to the evolutionary dynamics of genome size at smaller scales. The view that plants readily tolerate changes in ploidy and genome size, and often do so, appears to apply to Viburnum.
  • Editor: United States: Botanical Society of America, Inc
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.