Information om | Engelska ordet DIOECY

Exempel på hur man kan använda DIOECY i en mening

• And while Melicope species are usually dioecious (individual plants only bear either male or female flowers), the flowers of the former Platydesma are hermaphroditic, suggesting a rare evolutionary reversion away from dioecy in Platydesma.
• Approximately 27% of Asparagus species are dioecious and genomic and biogeographic analysis of the genus supports two independent clade-specific transitions from hermaphroditism to dioecy; both events occurred between three to four million years ago in Eurasia and the Mediterranean Basin.
• Under what conditions are the various states of hermaphroditism or dioecy evolutionarily stable? When is a mixture of sexual types stable?.
• It is contrasted with separation of sexes among individuals (dioecy), and their various modes of spatial (herkogamy) and temporal (dichogamy) separation.
• Charlesworth and Charlesworth (1981) applied similar logic to both outcrossing and selfing species, and created a model that predicted when dioecy would be favored over hermaphroditism, and vice versa.
• In animals, androdioecy has been considered a stepping stone in the transition from dioecy to hermaphroditism, and vice versa.
• Gynodioecy is the evolutionary intermediate between hermaphroditism (exhibiting both female and male parts) and dioecy (having two distinct morphs: male and female).
• Mutations can cause female sterility, male sterility, or adverse combinations of genes that can lead to monoecy, gynodioecy, and dioecy.
• It can therefore exhibit any of three breeding systems: andromonoecy, hermaphroditism or functional dioecy.
• It is a monomorphic sexual system comparable with gynomonoecy, andromonoecy and trimonoecy, and contrasted with dioecy where individual plants produce cones or flowers of only one sex and with bisexual or hermaphroditic plants in which male and female gametes are produced in the same flower.
• The term dioecy is inapplicable to bryophytes because it refers to the sexuality of vascular plant sporophytes.
• Although trioecy is viewed as being an evolutionarily unstable transitional state between dioecy and monoecy, a 2023 study revealed this probably not the case in this species.

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