Results 11 to 20 of about 287 (133)

Is increased male flower production a strategy for avoidance of predispersal seed predation in andromonoecious plants?

Ecology and Evolution, 2021
Floral gender in angiosperms often varies within and among populations. We conducted a field survey to test how predispersal seed predation affects sex allocation in an andromonoecious alpine herb Peucedanum multivittatum.
Gaku Kudo, Akari Shibata
doaj   +2 more sources

Seasonal change of flower sex ratio and pollinator dynamics in three reproductive ecotypes of protandrous plant

Ecosphere, 2020
Cimicifuga simplex has three genetically and ecologically distinct pollination morphs with different flowering phenology, flower sex expressions, and selfing rates. A previous study showed that strong protandry in hermaphroditic flowers of C.
Tsubasa Toji, Natsumi Ishimoto, Takao Itino   +2 more
doaj   +2 more sources

Evidence of andromonoecy in a northern population of Guaiacum coulteri (Zygophyllaceae).

Botan‪ical Sciences
Background: Angiosperms exhibit diverse reproductive systems, and andromonoecy—where individuals produce both hermaphroditic and staminate flowers—is rare, occurring in about 1.7 % of species.
Selina Y. Hernández-Lizárraga, Leonela Giselle Báez-Vásquez, Francisco Molina-Freaner, Karla Fabiola Yescas-Romo   +3 more
doaj   +2 more sources

Disruptive selection via pollinators and seed predators on the height of flowers on a wind-dispersed alpine herb. [PDF]

Am J Bot, 2022
Abstract Premise Floral stalk height is known to affect seed dispersal of wind‐dispersed grassland species, but it may also affect the attractiveness of flowers and fruits of animal‐pollinated and animal‐dispersed plants. Stalk height may thus be responsive to selection via interactions with both mutualist pollinators and seed dispersers, but also ...
Chen KH, Pannell JR.
europepmc   +2 more sources

Separated Sexes, Shared Consequences: Disentangling Predictors of Genetic Diversity in Dioecious Angiosperms. [PDF]

Ecol Evol
This study evaluates the factors influencing intrapopulation genetic diversity in dioecious flowering plants by integrating genetic and ecological data from studies published up to 2025. We show that pollination mode, endemism, and conservation status significantly shape genetic diversity patterns, with endemic and threatened species exhibiting the ...
Teixeira TM, Nazareno AG.
europepmc   +2 more sources

Reversibility of sex changes in the plant kingdom: more important than we thought? [PDF]

Biol Rev Camb Philos Soc
ABSTRACT Compared to animals, plants show a wide range of reproductive strategies with different degrees of sex separation (e.g. dioecy, monoecy, hermaphroditism). While sex expression was previously thought to be genetically determined and fixed in plants, accumulating evidence suggests that sex expression can change reversibly even within one ...
Sammarco I, Krtilová E, Slovák M, Lafon Placette C.   +3 more
europepmc   +2 more sources

Andromonoecy and Floral Protandry of Oenanthe aquatica (Apiaceae)

Vestnik Tomskogo gosudarstvennogo universiteta. Biologiya, 2022
The paper studies the synflorescence structure and flowering biology of the biennial monocarpic wetland plant Oenanthe aquatica. This species has a set of adaptations to prevent self-pollination, including generation of a pseudanthium, andromonoecy, intra- and interfloral protandry, and a specific sequence of flowering within its umbels.
Godin, Vladimir N., Arkhipova, Tatyana V., Vetlova, Maria A., Kuranova, Natalia G.   +3 more
openaire   +2 more sources

Size-dependent sex allocation in Solanum lycocarpum St. Hil. (Solanaceae)

Brazilian Journal of Biology, 2021
Resource allocation to reproduction can change depending on size, as predicted by the size-dependent sex allocation. This theory is based on the fact that small individuals will invest in the allocation of sex with lower cost of production, usually male ...
F. F. Coelho, A. G. Damasceno, A. Fávaro, G. S. Teodoro, L. P. Langsdorff   +4 more
doaj   +1 more source

Climate adaptation and functional constraints drive pollen evolution in Apiales. [PDF]

New Phytol
Summary Pollen grains exhibit remarkable morphological diversity, shaped by selective pressures from environmental factors and mechanical constraints. Here, we investigate macroevolutionary patterns of pollen morphology in Apiales, an order of angiosperms with significant ecological and geographical diversity, to disentangle the roles of climate and ...
Baczyński J, Spalik K, Burke JM, Banasiak Ł.   +3 more
europepmc   +2 more sources

Evolution of crop phenotypic spaces through domestication. [PDF]

New Phytol
Summary We used domestication as an in vivo replicated experiment to investigate how divergent selection has shaped the evolution of multivariate phenotypic spaces. We measured 11–57 qualitative and quantitative traits in 13 species, either unique or shared between species, and established a framework for cross‐species comparisons. Our results revealed
Wojcik A, Belcram H, Rousselet A, Bouët M, Brault M, Serin P, Desprez A, Rincent R, Peil A, Henry K, Marchal C, Lacombe T, Glémin S, Alix K, Gérard PR, Manicacci D, Vigouroux Y, Dogimont C, Tenaillon MI.   +18 more
europepmc   +2 more sources