Results 11 to 20 of about 66,642 (275)

Simulated emergence of cyclic sexual–asexual reproduction [PDF]

Physica A: Statistical Mechanics and its Applications, 2001
Motivated by the cyclic pattern of reproductive regimes observed in some species of green flies (``{\it aphids}''), we simulate the evolution of a population enduring harsh seasonal conditions for survival. The reproductive regime of each female is also seasonal in principle and genetically acquired, and can mutate for each newborn with some small ...
Sá Martins, J. S., Racco, A.
openaire   +3 more sources

Environmental and molecular regulation of asexual reproduction in the sea anemone Nematostella vectensis

Royal Society Open Science, 2023
Cnidarians exhibit incredible reproductive diversity, with most capable of sexual and asexual reproduction. Here, we investigate factors that influence asexual reproduction in the burrowing sea anemone Nematostella vectensis, which can propagate ...
Layla Al-Shaer, Whitney Leach, Noor Baban, Mia Yagodich, Mathew C. Gibson, Michael J. Layden   +5 more
doaj   +1 more source

Density, parasitism, and sexual reproduction are strongly correlated in lake Daphnia populations

Ecology and Evolution, 2021
Many organisms can reproduce both asexually and sexually. For cyclical parthenogens, periods of asexual reproduction are punctuated by bouts of sexual reproduction, and the shift from asexual to sexual reproduction has large impacts on fitness and ...
Camden D. Gowler, Mary A. Rogalski, Clara L. Shaw, Katherine K. Hunsberger, Meghan A. Duffy   +4 more
doaj   +1 more source

Interploidy gene flow involving the sexual-asexual cycle facilitates the diversification of gynogenetic triploid Carassius fish

Scientific Reports, 2021
Asexual vertebrates are rare and at risk of extinction due to their restricted adaptability through the loss of genetic recombination. We explore the mechanisms behind the generation and maintenance of genetic diversity in triploid asexual (gynogenetic ...
Tappei Mishina, Hirohiko Takeshima, Mikumi Takada, Kei’ichiro Iguchi, Chunguang Zhang, Yahui Zhao, Ryouka Kawahara-Miki, Yasuyuki Hashiguchi, Ryoichi Tabata, Takeshi Sasaki, Mutsumi Nishida, Katsutoshi Watanabe   +11 more
doaj   +1 more source

Detection of Gene Flow from Sexual to Asexual Lineages in Thrips tabaci (Thysanoptera: Thripidae). [PDF]

PLoS ONE, 2015
Populations of Thrips tabaci are known to have two sympatric but genetically isolated reproductive modes, arrhenotoky (sexual reproduction) and thelytoky (asexual reproduction).
Xiao-Wei Li, Ping Wang, Jozsef Fail, Anthony M Shelton   +3 more
doaj   +1 more source

Scaling in a continuous time model for biological aging [PDF]

, 2000
In this paper we consider a generalization to the asexual version of the Penna model for biological aging, where we take a continuous time limit.
Cai C., Cormen T.H., Cramér H., Fisher R.A., Fisher R.A., Frieden B.R., Frieden B.R., Grime S., Grocholsky B., Kalman R.E., Kreucher C., Kullback S., Principe J., Scheler D., Schenker P., van der Meulen E.   +15 more
core   +3 more sources

Difference in reproductive strategies of two scleractinian corals (branching vs massive) along the west coast of Mexico

Ciencias Marinas, 2013
This study addressed the relative contribution of sexual and asexual reproduction to the genetic composition of populations of two scleractinian corals, Pocillopora damicornis and Porites panamensis, off the west coast of mainland Mexico.
Héctor Efraín Chávez-Romo, David Arturo Paz-García, Francisco Correa-Sandoval, Héctor Reyes-Bonilla, Ramón Andrés López-Pérez, Pedro Medina-Rosas   +5 more
doaj   +1 more source

Population dynamics with a mixed type of sexual and asexual reproduction in a fluctuating environment

BMC Evolutionary Biology, 2012
Background Carassius gibelio, a cyprinid fish from Eurasia, has the ability to reproduce both sexually and asexually. This fish is also known as an invasive species which colonized almost all continental Europe, most likely originating from Asia and ...
Barbuti Roberto, Mautner Selma, Carnevale Giorgio, Milazzo Paolo, Rama Aureliano, Sturmbauer Christian   +5 more
doaj   +1 more source

Origin, divergence, and phylogeny of asexual Epichloë endophyte in Elymus species from western China. [PDF]

PLoS ONE, 2015
Asexual Epichloë species are likely derived directly from sexual Epichloë species that then lost their capacity for sexual reproduction or lost sexual reproduction because of interspecific hybridization between distinct lineages of sexual Epichloë and/or
Hui Song, Zhibiao Nan
doaj   +1 more source

Evolution of asexual and sexual reproduction in the aspergilli [PDF]

, 2018
Aspergillus nidulans has long-been used as a model organism to gain insights into the genetic basis of asexual and sexual developmental processes both in other members of the genus Aspergillus, and filamentous fungi in general.
Chen, W., Cánovas López, David, Dyer, P.S., Eagle, C.E., Gutiérrez Pozo, Gabriel, Huang, Z., Jia, W.L., Ojeda López, M., Park, H.S., Swilaiman, S.S., Yu, J.H.   +10 more
core   +2 more sources