Results 11 to 20 of about 690,322 (300)

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

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   +2 more sources

Sexual versus Asexual Reproduction: Distinct Outcomes in Relative Abundance of Parthenogenetic Mealybugs following Recent Colonization.

PLoS ONE, 2016
Asexual reproduction, including parthenogenesis in which embryos develop within a female without fertilization, is assumed to confer advantages over sexual reproduction, which includes a "cost of males." Sexual reproduction largely predominates in ...
Jun Tabata, Ryoko T Ichiki, Hirotaka Tanaka, Daisuke Kageyama   +3 more
doaj   +2 more sources

Asexual reproduction strategies in the moon jellyfish Aurelia (Cnidaria: Scyphozoa) [PDF]

Frontiers in Ecology and Evolution, 2023
The genus Aurelia is one of the major contributors to jellyfish blooms in coastal waters, possibly due to its adaptive reproduction strategies. Different Aurelia lineages have adapted their reproduction modes to varying environmental conditions in their ...
Fanghan Wang, Fanghan Wang, Agustin Schiariti, Agustin Schiariti, Shengnan Xu, Yuanqing Ma, Tingting Sun, Tingting Sun, Lei Wang, Jianmin Zhao, Jianmin Zhao, Zhijun Dong, Zhijun Dong   +12 more
doaj   +3 more sources

Asexual reproduction reduces transposable element load in experimental yeast populations

eLife, 2019
Theory predicts that sexual reproduction can either facilitate or restrain transposable element (TE) accumulation by providing TEs with a means of spreading to all individuals in a population, versus facilitating TE load reduction via purifying selection.
Jens Bast, Kamil S Jaron, Donovan Schuseil, Denis Roze, Tanja Schwander   +4 more
doaj   +2 more sources

Hybridization promotes asexual reproduction in Caenorhabditis nematodes.

PLoS Genetics, 2019
Although most unicellular organisms reproduce asexually, most multicellular eukaryotes are obligately sexual. This implies that there are strong barriers that prevent the origin or maintenance of asexuality arising from an obligately sexual ancestor.
Piero Lamelza, Janet M Young, Luke M Noble, Lews Caro, Arielle Isakharov, Meenakshi Palanisamy, Matthew V Rockman, Harmit S Malik, Michael Ailion   +8 more
doaj   +2 more sources

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

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

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

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

Origins of asexuality in Bryobia mites (Acari: Tetranychidae) [PDF]

, 2008
Background Obligate asexual reproduction is rare in the animal kingdom. Generally, asexuals are considered evolutionary dead ends that are unable to radiate. The phytophagous mite genus Bryobia contains a large number of asexual species.
Johannes A.J. Breeuwer, Ros Vera ID, Steph B.J. Menken, Menken Steph BJ, Breeuwer, J.A.J., Menken, S.B.J., Breeuwer Johannes AJ, Ros, V.I.D., Vera I.D. Ros   +8 more
core   +2 more sources