Book ChapterDOI
The Different Forms of Flowers on Plants of the Same Species: INTRODUCTION
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The article was published on 2010-01-01. It has received 733 citations till now. The article focuses on the topics: Hydrangea.read more
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The genetics of inbreeding depression.
TL;DR: The genetic basis of inbreeding depression and of the related phenomenon, heterosis, has been a puzzle for many decades as mentioned in this paper, based on recent studies in many species, the authors argue that both phenomena are predominantly caused by the presence of recessive deleterious mutations in populations.
Journal ArticleDOI
Secondary sex characters in plants
David G. Lloyd,C. J. Webb +1 more
TL;DR: The benefits to males of increasing pollen production and to females of increasing ovule production differ in such a way that the optimal reproductive effort will often be less for males than for females; this appears to explain a number of secondary sex characters.
Journal ArticleDOI
The relative and absolute frequencies of angiosperm sexual systems: Dioecy, monoecy, gynodioecy, and an updated online database
TL;DR: The current focus is on the genetic mechanisms underlying unisexual flowers and individuals in plants' sedentary life style, which may often favor polygamous systems in which sexually inconstant individuals can persist.
Journal ArticleDOI
Inbreeding depression, genetic load, and the evolution of outcrossing rates in a multilocus system with no linkage.
TL;DR: Deterministic models of multilocus systems subject to mutation–selection balance with all loci unlinked, and with multiplicative interactions of the loci affecting fitness, in partially self‐fertilizing populations are studied to examine the fitnesses of the zygotes produced by outcrossing and by selling, and the magnitude of inbreeding depression, in populations with different levels of in breeding.
Journal ArticleDOI
Darwin's beautiful contrivances: evolutionary and functional evidence for floral adaptation
TL;DR: A contrast between the inconsistent occurrence of phenotypic selection and convincing experimental and comparative evidence that floral traits are adaptations is revealed and suggests that the tempo of creative selection varies.