Results 51 to 60 of about 3,902 (197)

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

Adaptation of the autosomal part of the genome on the presence of dioecy

open access: yesbioRxiv, 2021
We have attempted to answer the question of whether the presence of sex chromosomes in the genome can affect the evolution of the autosomal part of the genome. As a model, we used dioecious plants from the section Otites of the genus Silene.
J. Žlůvová, R. Hobza, B. Janoušek
semanticscholar   +1 more source

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

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

Plant sex-determining genes and the genetics of the evolution towards dioecy.

open access: yesJournal of Experimental Botany
Thanks to significant advances in genomics and bioinformatics, research on plant sex-determining genes has made remarkable progress over the past decade.
Gabriel A. B. Marais   +4 more
semanticscholar   +1 more source

Fruit Development in Ficus carica L.: Morphological and Genetic Approaches to Fig Buds for an Evolution From Monoecy Toward Dioecy

open access: yesFrontiers in Plant Science, 2020
The mechanism behind the bud evolution towards breba or main crop in Ficus carica L. is uncertain. Anatomical and genetic studies may put a light on the possible similarities/differences between the two types of fruits.
I. Marcotuli   +10 more
semanticscholar   +1 more source

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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