Results 31 to 40 of about 1,444 (208)
Evolutionary lability of a complex life cycle in the aphid genus
BMC Evolutionary Biology, 2010 Background Most aphid species complete their life cycle on the same set of host-plant species, but some (heteroecious species) alternate between different hosts, migrating from primary (woody) to secondary (herbaceous) host plants.
Armelle Coeur d'acier +2 more
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Mapping a Partial Andromonoecy Locus in Citrullus lanatus Using BSA-Seq and GWAS Approaches
Frontiers in Plant Science, 2020 The sexual expression of watermelon plants is the result of the distribution and occurrence of male, female, bisexual and hermaphrodite flowers on the main and secondary stems. Plants can be monoecious (producing male and female flowers), andromonoecious
Encarnación Aguado +9 more
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Reproductive assurance through autogamous self-pollination across diverse sexual and breeding systems [PDF]
, 2015 Pollination becomes a constraint when conspecific plants and/or their pollinators become scarce. Many plant species have evolved autogamous self-pollination as a means of reproductive assurance (RA) under pollination-uncertain environments. So far RA has
Shivanna, KR
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, 2011 Nuclear and plastid sequences from two individuals of a suspected new species of Coccinia from West Africa were added to an available molecular phylogeny for the remaining 27 species of the genus.
Holstein, Norbert, Renner, Susanne S.
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A conserved ethylene biosynthesis enzyme leads to andromonoecy in two cucumis species. [PDF]
PLoS ONE, 2009 Andromonoecy is a widespread sexual system in angiosperms, characterized by plants carrying both male and bisexual flowers. Monoecy is characterized by the presence of both male and female flowers on the same plant.
Adnane Boualem +5 more
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Acta Botânica Brasílica, 2022 Distyly is a floral polymorphism with reciprocal placement of male and female structures, heteromorphic self-incompatibility, and other ancillary traits. However, breeding system breakdowns and loss of polymorphism are common.
Ebenézer B. Rodrigues +3 more
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New Species of Siparuna (Siparunaceae) IV [PDF]
, 2005 A new species of Siparuna (Siparunaceae), S. ficoides, is described, illustrated, and placed in a phylogenetic context based on morphological and DNA sequence data. The species, which is a monoecious subcanopy tree, is known from three collections made
Hausner, Gerlinde, Renner, Susanne S.
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Sex Allocation in the Monoecious Herb Begonia semiovata [PDF]
Evolution, 1995 Sex-allocation models predict that the evolution of self-fertilization should result in a reduced allocation to male function and pollinator attraction in plants. The evolution of sex allocation may be constrained by both functional and genetic factors, however. We studied sex allocation and genetic variation for floral sex ratio and other reproductive
Jon, Ågren, Douglas W, Schemske
openaire +2 more sources
Plant Sex Prediction Using Genetic Markers in Cultivated Yams (Dioscorea rotundata Poir.) in Benin
Agronomy, 2020 Dioscorea rotundata Poir. is mainly dioecious but it also produces monoecious individuals. Recently two genetic markers were proposed to determine the sex in this species.
Narcisse Denadi +4 more
doaj +1 more source
Dicliny in Bouteloua (Poaceae: Chloridoideae): Implications for the Evolution of Dioecy [PDF]
, 2007 The New World grass genus Bouteloua (Chloridoideae: Cynodonteae) comprises 57 species, 13 of which produce unisexual spikelets and hence are diclinous. Andromonoecy, gynodioecy, monoecy, trimonoecy, and dioecy all occur in the genus, and ten species are ...
Columbus, J. Travis +2 more
core +3 more sources