Results 11 to 20 of about 205,620 (250)

Mating system and role of pycnidiospores in biology of Polystigma amygdalinum, the causal agent of almond red leaf blotch

open access: yesPhytopathologia Mediterranea, 2016
Polystigma amygdalinum is a serious leaf pathogen of almonds. Ascospores are believed to be the only inoculum of this pathogen. Ascocarp initials develop in infected leaves in contact with, or in close proximity to, filimentous spore-bearing bodies ...
Azadeh HABIBI, Zia BANIHASHEMI
doaj   +1 more source

Mendelian inheritance of introrse orientated anthers in Brassica rapa

open access: yesCzech Journal of Genetics and Plant Breeding, 2022
The inheritance of anther orientation of 154 individuals from two B1 populations of Brassica rapa (syn. Brassica campestris) was evaluated under controlled conditions in a greenhouse.
Jaroslav Salava, Derek Lydiate
doaj   +1 more source

Plant Mating Systems Often Vary Widely Among Populations

open access: yesFrontiers in Ecology and Evolution, 2018
Most flowering plants are hermaphroditic, yet the proportion of seeds fertilized by self and outcross pollen varies widely among species, ranging from predominant self-fertilization to exclusive outcrossing.
Michael R. Whitehead   +4 more
doaj   +1 more source

Mixed mating system and variable mating patterns in tropical woody bamboos

open access: yesBMC Plant Biology, 2019
Background So far, little is known in detail about mating systems of woody bamboos. Paternity analysis of offspring improved our understanding of these systems, and contributed to their germplasm conservation and genetic improvement.
Ning Xie   +3 more
doaj   +1 more source

Mating system drives negative associations between morphological features in Schistosomatidae

open access: yesBMC Evolutionary Biology, 2010
Background Sexual morphological features are known to be associated with the mating systems of several animal groups. However, it has been suggested that morphological features other than sexual characteristics could also be constrained by the mating ...
Beltran Sophie   +3 more
doaj   +1 more source

A Comment on "Mate Recognition Systems" [PDF]

open access: yesEvolution, 1980
In a recent response to a note by Ringo (1977) on "Why 300 species of Hawaiian Drosophila?," Templeton (1979) introduced a new aspect to the discussion. This was the idea of the Mate Recognition System, or, as I now prefer to call it, the Specific-Mate Recognition System (SMRS), which I introduced in 1976.
openaire   +2 more sources

On extending the Hardy-Weinberg law

open access: yesGenetics and Molecular Biology, 2007
This paper gives a general mating system for an autosomal locus with two alleles. The population reproduces in discrete and non-overlapping generations.
Alan E. Stark
doaj   +1 more source

Animal‐borne video systems provide insight into the reproductive behavior of the Asian black bear

open access: yesEcology and Evolution, 2021
Previous studies on the mating system of the Asian black bear (Ursus thibetanus) have been limited to observations of captive populations and estimations of multiple paternities. Hence, the mating system of wild bears remains poorly understood.
Tomoko Naganuma   +8 more
doaj   +1 more source

Morning glory species co‐occurrence is associated with asymmetrically decreased and cascading reproductive isolation

open access: yesEvolution Letters, 2021
Hybridization between species can affect the strength of the reproductive barriers that separate those species. Two extensions of this effect are (1) the expectation that asymmetric hybridization or gene flow will have asymmetric effects on reproductive ...
Kate L. Ostevik   +3 more
doaj   +1 more source

Experimental evidence of polyandry and prolonged copulations in Photinus palaciosi, a synchronous firefly with brachypterous females (Coleoptera: Lampyridae)

open access: yesEuropean Journal of Entomology, 2023
Males of some species of the firefly Photinus produce nutritious spermatophores (nuptial gifts) the production of which is associated with a specific reproductive morphology.
Aldair VERGARA   +5 more
doaj   +1 more source

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