Dioecy - Wikipedia
网页Dioecy (/ daɪˈiːsi / dy-EE-see; [1] from Ancient Greek διοικία dioikía 'two households'; adj. dioecious, / daɪˈiːʃ (i) əs / dy-EE-sh (ee-)əs[2][3]) is a characteristic of certain species that have distinct unisexual individuals, each producing either male or female gametes, either directly (in animals) or indirectly (in seed ...
Dioecism | reproduction | Britannica
网页A unisexual organism of a bisexual species is one in which the male and female gonads are found in separate individuals. In plants this condition is often called dioecism. A unisexual species is one in which all individuals are of the same sex. Some species of whiptail lizards, for example, are only female.
雌雄异株 - 百度百科
网页雌雄异株（Dioecism）指在具有单性花的种子植物中，雌花与雄花分别生长在不同的株体。 性别决定方式是XY型。 仅有雌花的植株称为雌株，仅有雄花的称为雄株。
The Mechanism of Sex Determination in Dioecious Flowering Plants
网页First, the fact that dioecious plants have arisen independently gives an opportunity to study the different ways in which dioecism may become established. Second, in plants the step from dioecism to bisexuality is often a short one and in …
Genetics of dioecy and causal sex chromosomes in plants
网页2014年5月2日 · Hermaphroditism and dioecism, respectively promote automixis and amphimixis. Whereas hermaphroditism is a common feature among plants, and nonarthropod invertebrate animals, dioecism is more or less universal among the phylogenetic groups. Dioecy is of two kinds: haploid and diploid.
Temporal Dioecism: Systematic Breadth, Associated Traits, and …
网页Temporal dioecism, the temporal alternation of pistillate and staminate functions within a plant, is a relatively common mating system among flowering plants. It occurs in at least 37 angiosperm families and is common in Apiaceae, Araceae, Arecaceae, Juglandaceae, Sparganiaceae, Typhaceae, and hermaphroditic species in …
Plant sex chromosomes defy evolutionary models of expanding ... - Nature
网页2021年3月29日 · Nature Communications (2023) Hundreds of land plant lineages have independently evolved separate sexes in either gametophytes (dioicy) or sporophytes (dioecy), but 43% of all dioecious...
Dioecy - an overview | ScienceDirect Topics
网页A term mainly used for animals: a sexual system where individuals only ever exhibit either the male or the female sexual strategy throughout their lives (synonymous with ‘dioecy’ used for plants and ‘heterothallism’ used for algae and fungi). From: Encyclopedia of Evolutionary Biology, 2016.
Geographical distribution of dioecy and its ecological correlates …
网页2019年12月2日 · The continental and oceanic distributions of dioecism and its latitudinal pattern have long been the subject of biogeographical research. Most studies relied on regional floristic checklists (Baker & Cox, 1984 ; Sakai et al., 1995 ; Tseng et al., 2008 ), but analyses examining dioecy and its geographical patterns based on complete and detailed ...
Dioecy: The Dimorphic Sexual System and Pollination in
网页2022年10月31日 · Dioecy, the occurrence of separate male and female individuals in a population, relies on biotic or abiotic pollen vectors for sexual reproduction. We evaluated the dimorphic sexual system, pollination, attractive floral attributes, and floral visitors of ten dioecious species in restinga vegetation.