Results 51 to 60 of about 1,446 (175)

Caracterização funcional do sistema reprodutivo da aroeira-vermelha (Schinus terebinthifolius Raddi), em Florianópolis-SC, Brasil Characterization of the functional reproductive system of the pink-pepper (Schinus terebinthifolius Raddi), in Florianópolis, SC, Brazil

open access: yesRevista Brasileira de Fruticultura, 2004
Determinou-se a dioicia como sistema reprodutivo de S. terebinthifolius (Anacardiaceae), em uma área com influência antrópica e em outra área de restinga, no município de Florianópolis-SC.
Maurício Lenzi, Afonso Inácio Orth
doaj   +1 more source

Three closely linked X‐chromosomal genes potentially control sex determination in Cannabis sativa

open access: yesNew Phytologist, Volume 251, Issue 1, Page 505-522, July 2026.
Summary Sex determination mechanisms in dioecious plants remain poorly understood yet offer an excellent model system to study genetic changes underlying morphological evolution. We investigated the genetic basis of sex determination in Cannabis sativa, combining quantitative trait locus mapping in a segregating population, comparative transcriptomics ...
Matteo Toscani   +8 more
wiley   +1 more source

Sex Determination in Sponges

open access: yesMolecular Reproduction and Development, Volume 93, Issue 6, June 2026.
ABSTRACT Sex determination in Porifera remains one of the least understood aspects of early metazoan biology despite the group's key phylogenetic position. Sponges display exceptional diversity in sexual systems—ranging from stable gonochorism to sequential hermaphroditism and sex reversal—yet lack morphological dimorphism and any discrete gonadal ...
Jose M. Lorente‐Sorolla, Ana Riesgo
wiley   +1 more source

Confirming Dioecy in Isoëtes butleri

open access: yesAmerican Fern Journal, 2005
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Turner, Nicholas A, Taylor, W. Carl
openaire   +3 more sources

Genetic architecture of phenological, morphological, and phytochemical traits in Cannabis landraces

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Despite its long history of cultivation and diverse applications, Cannabis sativa remains underexplored at the genomic level, particularly in landrace populations that harbor untapped genetic diversity. In this study, we investigated the genetic architecture of 145 Iranian cannabis landrace accessions, including both male and female plants ...
Mehdi Babaei, Davoud Torkamaneh
wiley   +1 more source

An angiosperm-wide analysis of the gynodioecy–dioecy pathway [PDF]

open access: yesAnnals of Botany, 2014
About 6 % of an estimated total of 240 000 species of angiosperms are dioecious. The main precursors of this sexual system are thought to be monoecy and gynodioecy. A previous angiosperm-wide study revealed that many dioecious species have evolved through the monoecy pathway; some case studies and a large body of theoretical research also provide ...
Dufaÿ, Mathilde   +5 more
openaire   +2 more sources

Sex-Specific Responses of Sexual Reproduction, Clonal Reproduction, and Vegetative Growth to Environmental (Biotic and Abiotic) Factors in the Clonal Dioecious Plant Acer barbinerve

open access: yesPlants
Sexual dimorphism in dioecious plants serves as a critical adaptive strategy in complex environments. This study systematically investigated the effects of topographic factors (elevation, slope, aspect, and convexity), soil nutrients (C, N, P), and ...
Dan Liao   +5 more
doaj   +1 more source

Differentiation during fig ontogeny suggests opposing selection by mutualists

open access: yesEcology and Evolution, 2020
Dioecy allows separation of female and male functions and therefore facilitates separate co‐evolutionary pathways with pollinators and seed dispersers. In monoecious figs, pollinators' offspring develop inside the syconium by consuming some of the seeds.
Silvia B. Lomáscolo, Douglas J. Levey
doaj   +1 more source

Sex Determination in Dioscorea dumetorum: Evidence of Heteromorphic Sex Chromosomes and Sex-Linked NORs

open access: yesPlants, 2023
Yams (Dioscorea spp.) are a pantropical genus located worldwide that constitute an important source of nutrients and pharmaceutical substances. Some Dioscorea crop species are widely grown in West Africa. One species that is mainly cultivated in Cameroon
Florence Ngo Ngwe, Sonja Siljak-Yakovlev
doaj   +1 more source

Repeated evolution of dioecy from androdioecy in Acer [PDF]

open access: yesNew Phytologist, 2004
The evolution of breeding systems was studied in the genus Acer, with special attention to the origin of androdioecy and dioecy, using a phylogenetic approach. Parsimony and maximum-likelihood techniques were used to infer the ancestral character state and trends in the evolution of breeding systems.
Gleiser, G., Verdú, Miguel
openaire   +3 more sources

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