Results 21 to 30 of about 68,621 (218)

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

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

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

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

Genomic consequences and selection efficacy in sympatric sexual versus asexual kelps

Frontiers in Marine Science, 2022
Genetic diversity can influence resilience and adaptative capacity of organisms to environmental change. Genetic diversity within populations is largely structured by reproduction, with the prevalence of asexual versus sexual reproduction often ...
Sofie Vranken, Sofie Vranken, Armin Scheben, Armin Scheben, Jacqueline Batley, Thomas Wernberg, Thomas Wernberg, Thomas Wernberg, Melinda Ann Coleman, Melinda Ann Coleman, Melinda Ann Coleman   +10 more
doaj   +1 more source

Evolution of plant reproduction: from fusion and dispersal to interaction and communication [PDF]

, 2009
Based on the existing data concerning the evolution of the sexual reproduction, it is argued that the processes of sex differentiation and interactions play a key role in evolution. From the beginning environment and organism are unified.
Willemse, M.T.M.
core   +1 more source

Extreme genetic diversity in asexual grass thrips populations. [PDF]

, 2016
The continuous generation of genetic variation has been proposed as one of the main factors explaining the maintenance of sexual reproduction in nature.
Dumas, Z., Fontcuberta García-Cuenca, A., Schwander, T.   +2 more
core   +1 more source