Results 51 to 60 of about 1,446 (175)
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
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
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
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Turner, Nicholas A, Taylor, W. Carl
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Genetic architecture of phenological, morphological, and phytochemical traits in Cannabis landraces
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]
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
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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
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
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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]
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
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