Results 71 to 80 of about 3,609 (241)

Contrasting microbial communities on male and female flowers of a dioecious plant, Mallotus japonicus (Euphorbiaceae)

Environmental DNA, 2022
Flowers play a central role in plant reproduction by dispersing and receiving pollen grains delivered by animal vectors or air. They are rich in various nutrients, and therefore, provide an ideal habitat for many microbes.
Maxime Marre, Masayuki Ushio, Shoko Sakai   +2 more
doaj   +1 more source

Colonisation History of Freshwater Snails Across the Atlantic and Mediterranean Islands: Insights From Mercuria (Littorinimorpha, Hydrobiidae)

Zoologica Scripta, EarlyView.
ABSTRACT Islands harbour unique biodiversity, and depending on their geological origin, they have fundamentally different colonisation histories: continental islands may contain relict faunas shaped by vicariance and sporadic gene flow, whereas oceanic islands must have been colonised across open seas, often through long‐distance dispersal events ...
Jonathan P. Miller, Omar Sánchez, Vincent Prié, Diana Delicado   +3 more
wiley   +1 more source

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

New 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, Afsheen Malik, Ainhoa Riera‐Begue, Caroline A. Dowling, Quentin Rougemont, Ricardo C. Rodríguez de la Vega, Tatiana Giraud, Susanne Schilling, Rainer Melzer   +8 more
wiley   +1 more source

A model for the gradual evolution of dioecy and heterogametic sex determination

bioRxiv
In plants with separate sexes, the development of an individual as male or female is controlled by a dominant allele at a sex-determining locus - the fundamental basis of XY and ZW systems.
Thomas Lesaffre, J. Pannell, Charles Mullon   +2 more
semanticscholar   +1 more source

Recent Sex Chromosome Divergence despite Ancient Dioecy in the Willow Salix viminalis

Molecular biology and evolution, 2017
Sex chromosomes can evolve when recombination is halted between a pair of chromosomes, and this can lead to degeneration of the sex-limited chromosome.
P. Pucholt, Alison E. Wright, L. L. Conze, J. Mank, S. Berlin   +4 more
semanticscholar   +1 more source

High incidence of dioecy in young successional tropical forests

, 2015
The role of plant sexual systems in community assembly has been little studied. Classical assumptions predict an association between self-fertilization and colonizing ability, a pattern not systematically supported by observations. Here, using a data set
Cheptou, Pierre-Olivier, Pierre‐Olivier Cheptou, Rejou-Mechain, Maxime, Maxime Réjou‐Méchain   +3 more
core   +1 more source

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

Revista 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

Sex Determination in Sponges

Molecular 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

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

The 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

Pleiotropic effects of sex-determining genes in the evolution of dioecy in two plant species

Proceedings of the Royal Society B, 2019
One reason for studying sex chromosomes of flowering plants is that they have often evolved separate sexes recently, and the genomes of dioecious species may not yet have evolved adaptations to their changes from the ancestral state.
T. Akagi, D. Charlesworth
semanticscholar   +1 more source