Life history variation within populations of an asexual plant, Erigeron annuus (Asteraceae)

Genetic variation was measured for several morphological and life history characters in Erigeron annuus, a triploid and obligately apomictic species. There was significant genetic variation for nearly all characters measured, including plant size, growth rate, time of flowering, biomass allocation t...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	American journal of botany 1991-05, Vol.78 (5), p.723-728
1. Verfasser:	Stratton, D.A
Format:	Artikel
Sprache:	eng
Schlagworte:	asexual reproduction Asteraceae Biological and medical sciences Botany Evolution Evolutionary genetics Fundamental and applied biological sciences. Psychology Genetic variation Genetics genotype Genotypes Germination Heritability life cycle (organisms) phenotype Plant cytology, morphology, systematics, chorology and evolution Plant evolution Plants Seedlings Seeds Statistical variance triploidy weed biology
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Genetic variation was measured for several morphological and life history characters in Erigeron annuus, a triploid and obligately apomictic species. There was significant genetic variation for nearly all characters measured, including plant size, growth rate, time of flowering, biomass allocation to roots and shoots, seed weight, and germination response to temperature. Variance among genotypes accounted for up to 55% of the total phenotypic variance, well within the range of heritabilities observed for sexual species. These estimates of broad-sense heritability predict substantial short-term response to selection on life history characters in this asexual species.
ISSN:	0002-9122 1537-2197
DOI:	10.1002/j.1537-2197.1991.tb12596.x