Results 31 to 40 of about 1,446 (175)

Sex is determined by XY chromosomes across the radiation of dioecious Nepenthes pitcher plants

open access: yesEvolution Letters, 2019
Species with separate sexes (dioecy) are a minority among flowering plants, but dioecy has evolved multiple times independently in their history. The sex‐determination system and sex‐linked genomic regions are currently identified in a limited number of ...
Mathias Scharmann   +3 more
doaj   +1 more source

Salix gordejevii females exhibit more resistance against wind erosion than males under aeolian environment

open access: yesFrontiers in Plant Science, 2022
Effects of wind erosion on growth and adaptability have been widely reported in many plants, but little attention has been paid to dioecious plants. Recent studies have shown that sex-specific responses to environmental changes in many plants exist.
Shaowei Ma   +6 more
doaj   +1 more source

Reproductive biology of two Lagenaria (Curcubitaceae) species

open access: yesBotanica, 2022
The genus Lagenaria (Cucurbitaceae) members are underutilised, neglected and on the verge of being threatened to extinction. An investigation of their reproductive biology will serve as the basis for effective strategic planning towards their ...
Babatunde Olanrewaju Okunlola   +2 more
doaj   +1 more source

Terrestrial gastropods - how do they reproduce? [PDF]

open access: yesInvertebrate Survival Journal, 2017
Molluscs are the most diverse group in respect of sexual systems and strategies. They can be dioecious with separate sexes or hermaphroditic. Within hermaphroditism, it is possible to distinguish a number of modifications of this type of reproduction ...
K S Zajac, P E Kramarz
doaj   +1 more source

Notes on the floral sexuality of some species of the tree genus Triplaris (Polygonaceae)

open access: yesCaldasia, 2021
The majority of angiosperms (~94 %) are synoecious, with only a small minority separating the pro-duction of the two gamete types onto different biological individuals (dioecy).
Daniel Mark Koenemann
doaj   +1 more source

Pollination ecology of Litsea glutinosa (Lour.) C.B. Robinson (Lauraceae): A commercially and medicinally important semi-evergreen tree species [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2019
Litsea glutinosa is a semi-evergreen wet season blooming tree species. It is a dioecious plant characterized by separate staminate and pistillate trees occurring in a 3:1 ratio.
K. Venkata Ramana, A. Jacob Solomon Raju
doaj   +1 more source

Molecular evidence for recent divergence of X- and Y-linked gene pairs in Spinacia oleracea L.

open access: yesPLoS ONE, 2019
Dioecy has evolved recently and independently from cosexual populations in many angiosperm lineages, providing opportunities to understand the evolutionary process underlying this transition.
Yosuke Okazaki   +4 more
doaj   +1 more source

Anatomy and fruit development in Schinopsis balansae (Anacardiaceae)

open access: yesAnales del Jardín Botánico de Madrid, 2010
Schinopsis balansae Engl. is a dioecious tree; reproduction is by woody samaras containing a single seed. Fruit set is high, even in isolated trees, empty fruits are frequent and account for a high proportion of the total fruit production.
Ana María González   +1 more
doaj   +1 more source

The ecology, evolution, and biogeography of dioecy in the genus Solanum: With paradigms from the strong dioecy in Solanum polygamum, to the unsuspected and cryptic dioecy in Solanum conocarpum [PDF]

open access: yesAmerican Journal of Botany, 2015
• Premise of the study: Island plants are over‐exploited and “under‐explored.” Understanding the reproductive biology of plants, especially rare species, is fundamental to clarifying their evolution, estimating potential for change, and for creating effective conservation plans. Clarification of sexual systems like dioecy, and unusual manifestations of
Gregory J, Anderson   +2 more
openaire   +2 more sources

Altitudinal variation of the sex ratio and segregation by gender in the dioecious plant Mercurialis perennis L. (Euphorbiaceae) in Serbia [PDF]

open access: yesArchives of Biological Sciences, 2007
The sex ratio is one of the most intriguing problems for evolutionary biologists. Spatio-temporal variation of male frequency in sexually dimorphic plant species, spatial segregation, and differential investment of the two sex functions have attracted ...
Cvetković Dragana, Jovanović V.
doaj   +1 more source

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