Results 51 to 60 of about 690,322 (292)

Asexual Reproduction in Infectious Diseases

, 2009
Parasitic organisms in the strict sense (eukaryotes) represent a significant part of the general biodiversity which has been described and, with 179 species affecting people worldwide, are of relevance for mankind in particular. Contrary to the classical view, many of these species are clonal.
De Meeûs, Thierry, Prugnolle, Franck, Agnew, Philip   +2 more
openaire   +2 more sources

Evolution of Complex Asexual Reproductive Strategies in Jellyfish [PDF]

The American Naturalist, 2018
Many living organisms in terrestrial and aquatic ecosystems rely on multiple reproductive strategies to reduce the risk of extinction in variable environments. Examples are provided by the polyp stage of several bloom-forming jellyfish species, which can reproduce asexually using different budding strategies.
Schnedler-Meyer, Nicolas Azaña, Pigolotti, Simone, Mariani, Patrizio; id_orcid 0000-0002-8015-1583   +2 more
openaire   +2 more sources

Trait convergence under warming: drought tolerance, not thermal limits, mediates native–invader dynamics in alpine ecosystems

Oikos, EarlyView.
Climate warming and plant invasions jointly alter alpine ecosystems, but the mechanisms underlying these interactions remain unclear. A key to predicting ecosystem vulnerability is whether native and invasive species can sustain performance as conditions warm.
Indira V. Leon‐Garcia, Julie R. Deslippe   +1 more
wiley   +1 more source

Intensity and mode of Lindera melissifolia reproduction are affected by flooding and light availability

Ecology and Evolution, 2021
We studied the impact of flooding and light availability gradients on sexual and asexual reproduction in Lindera melissifolia (Walt.) Blume, an endangered shrub found in floodplain forests of the Mississippi Alluvial Valley (MAV), USA.
Theodor D. Leininger, Emile S. Gardiner, Brian Roy Lockhart, Nathan M. Schiff, Alphus Dan Wilson, Margaret S. Devall, Paul B. Hamel, Kristina F. Connor   +7 more
doaj   +1 more source

Management and incipient domestication of Chamaedorea tepejilote in agroforestry systems in Mexico

PLANTS, PEOPLE, PLANET, EarlyView.
Native wild plants are key elements in addressing global biodiversity loss and supporting sustainable food systems. We investigated how rural communities in Mexico manage Chamaedorea tepejilote, a wild palm with edible male inflorescences, by combining ethnobotanical, genetic, morphological and ecological approaches.
Viviana Andrade, Alejandro Casas, Edna Arévalo‐Marín, Gonzalo D. Álvarez‐Ríos, Hernán Alvarado‐Sizzo, Vanessa Guerrero‐Hernández, Paola Ubiergo‐Corvalán, Maite Lascurain‐Rangel   +7 more
wiley   +1 more source

Mating-type genes of the anamorphic fungus Ulocladium botrytis affect both asexual sporulation and sexual reproduction

Scientific Reports, 2017
Ulocladium was thought to be a strictly asexual genus of filamentous fungi. However, Ulocladium strains were shown to possess both MAT1-1-1 and MAT1-2-1 genes as observed in homothallic filamentous Ascomycetes. Here, we demonstrate that the U.
Qun Wang, Shi Wang, Chen Lin Xiong, Timothy Y. James, Xiu Guo Zhang   +4 more
doaj   +1 more source

The epidemiology of the blackleg pathogen, Leptosphaeria maculans, impacts fungicide resistance management strategies

Pest Management Science, EarlyView.
Understanding how infection timing drives disease is essential for the development of fungicide resistance management strategies. For blackleg disease of canola, all infection timings can contribute to the following generation, therefore all fungicide applications have the ability to select for resistance.
Alec J McCallum, Sean Roberts, Alexander Idnurm, Angela P Van de Wouw   +3 more
wiley   +1 more source

Patterns of molecular evolution in a parthenogenic terrestrial isopod (Trichoniscus pusillus) [PDF]

PeerJ
The “paradox of sex” refers to the question of why sexual reproduction is maintained in the wild, despite how costly it is compared to asexual reproduction. Because of these costs, one might expect nature to select for asexual reproduction, yet sex seems
Emily Yarbrough, Christopher Chandler
doaj   +2 more sources

The first report of M918L (super‐kdr) and L932F voltage‐gated sodium channel mutations in the English grain aphid (Sitobion avenae)

Pest Management Science, EarlyView.
The study has identified mutations in the voltage gated sodium channel of the English grain aphid (Sitobion avenae) at M918 and L932, which have not been previously reported in this species. Abstract BACKGROUND The grain aphid, Sitobion avenae Fabricius (Hemiptera: Aphididae), is a vector of yellow dwarf viruses and an important pest of cereals.
Virgile Ballandras, Louise McNamara, James C Carolan, Tom Ruttink, Stephen Byrne   +4 more
wiley   +1 more source

Stable demographic ratios of haploid gametophyte to diploid sporophyte abundance in macroalgal populations.

PLoS ONE
Macroalgal populations often consist of free-living haploid (gametophyte) and diploid (sporophyte) stages. Various ecological studies have been conducted to examine the demographic diversity of haploid-diploid populations with regard to the dominant ...
Kazuhiro Bessho
doaj   +1 more source