Results 61 to 70 of about 3,902 (197)

Evolution of plant sex and molecular mechanisms underlying plants sex separation

Forestry Research, 2023
Unlike animals, plants exhibit more complexity of sexual morphs. The genetic mechanism underlying plant sex is a hot research topic in plant biology. In recent decades, advanced theories have been put forth on plant sex determination, but experimental ...
Wei Li, Wei Fu, Jing Hou, Yonghua Yang, Tongming Yin   +4 more
doaj   +1 more source

Pollinator Behavior Drives Sexual Specializations in the Hermaphrodite Flowers of a Heterodichogamous Tree

Frontiers in Plant Science, 2019
Dioecy, the specialization of individuals into either male-only or female-only sexual function, has multiple evolutionary origins in plants. One proposed ancestral mating system is heterodichogamy, two morphs of cross-fertilizing hermaphrodite flowers ...
Eric Wajnberg, Noemi Tel-Zur, Idan Shapira, Yochai Lebber, Simcha Lev-Yadun, Udi Zurgil, Orna Reisman-Berman, Orna Reisman-Berman, Tamar Keasar   +8 more
doaj   +1 more source

Sex expression in Serbian dendroflora: A case study of Fraxinus ornus var. angustifolia [PDF]

Archives of Biological Sciences, 2012
Out of a total number of tree species in Serbian flora, 28% are hermaphrodites, 43% are monoecious and 29% are dioecious. The dendroflora appears to have a larger proportion of unisexual than hermaphrodite species.
Popović Zorica, Stefanović Milena, Smiljanić Miroslava, Matić Rada, Kostić M., Vidaković Vera, Bojović S.   +6 more
doaj   +1 more source

Data from: Recurrent evolution of dioecy in bryophytes

, 2012
The origin and maintenance of separate sexes (dioecy) is an enduring evolutionary puzzle. Although both hermaphroditism and dioecy occur in many diverse clades, we know little about the long-term evolutionary consequences of changing sexual system.
McDaniel, Stuart F., Burleigh, J. Gordon, Atwood, John   +2 more
core   +1 more source

Role of Pollinators in the Evolution of Dioecy from Distyly

, 1980
Although dioecy in flowering plants is mostly thought to have evolved because of its function as an outbreeding system (Lewis 1942; Stebbins 1950; Baker 1959; Charlesworth and Charlesworth 1978; and see Willson 1979), other possible explanations based on
Bawa, K. S., Beach, J. H., K. S. Bawa, J. H. Beach   +3 more
core   +2 more sources

Rethinking pathways to the dioecy-polyploidy association: Genera with many dioecious species have fewer polyploids.

American-Eurasian journal of botany
PREMISE Numerous studies have found a positive association between dioecy and polyploidy; however, this association presents a theoretical conflict: While polyploids are predicted to benefit from self-reproduction for successful establishment, dioecious ...
Wilhelm H. A. Osterman, A. Hill, James G. Hagan, Jeannette Whitton, C. Bacon, Anne D. Bjorkman   +5 more
semanticscholar   +1 more source

Management and incipient domestication of Chamaedorea tepejilote in agroforestry systems in Mexico

PLANTS, PEOPLE, PLANET, EarlyView.
Native wild plants are key elements in addressing global biodiversity loss and supporting sustainable food systems. We investigated how rural communities in Mexico manage Chamaedorea tepejilote, a wild palm with edible male inflorescences, by combining ethnobotanical, genetic, morphological and ecological approaches.
Viviana Andrade, Alejandro Casas, Edna Arévalo‐Marín, Gonzalo D. Álvarez‐Ríos, Hernán Alvarado‐Sizzo, Vanessa Guerrero‐Hernández, Paola Ubiergo‐Corvalán, Maite Lascurain‐Rangel   +7 more
wiley   +1 more source

Dioecy is associated with higher diversification rates in flowering plants

, 2014
International audienceIn angiosperms, dioecious clades tend to have fewer species than their nondioecious sister clades. This departure from the expected equal species richness in the standard sister clade test has been interpreted as implying that ...
de Boer, Hugo J.,, Kaefer, J., de Boer, Hugo, J, Käfer, Jos, Dufaÿ, Mathilde, Marais, G. A. B., Kool, Anneleen, Marais, Gabriel, A.B., Marais, Gabriel,, Dufay, M., Mousset, Sylvain, de Boer, Hugo,, Mousset, S., Kool, A.   +13 more
core   +1 more source

Exceptions from dioecy and sex lability in genus Salix [PDF]

, 2014
Bisexualism (and its derivatives) is a rare exception in species which already acquired the dioecious breeding system. Although it occurs in some tree species, it is still rather uncommon, except for willows, in which bisexualism occurs in at least 18 ...
Mirski, P.
core   +1 more source

How pollen and ovule development underlay dioecy in Chloroluma gonocarpa (Sapotaceae)

Journal of plant research
Previous studies have determined that Chloroluma gonocarpa (Sapotaceae), is a species that has cryptic dioecy. This type of sexual system is characterized by flowers that are morphologically perfect (both sexual whorls are present) but functionally ...
M. D. Judkevich, P. A. Luaces, A. M. González   +2 more
semanticscholar   +1 more source