Results 81 to 90 of about 68,621 (218)

Asexual reproduction for improved livestock breeding

Trends in Biotechnology
As natural environments deteriorate, genetic improvements to agricultural animals will be required to ensure global food security. Improving livestock production by introducing asexual reproduction (AR) into mainstream animal husbandry can help meet the challenge, but its advantages must be accompanied by social, commercial, and governmental acceptance.
Ziyao Fan, Taotao Gu, Perry B. Hackett, Kui Li   +3 more
openaire   +2 more sources

Cluster geometry and survival probability in systems driven by reaction-diffusion dynamics

, 2007
We consider a reaction-diffusion model incorporating the reactions A -> 0, A -> 2A and 2A -> 3A. Depending on the relative rates for sexual and asexual reproduction of the quantity A, the model exhibits either a continuous or first-order absorbing phase ...
Alastair Windus, Grassberger P, Henrik J Jensen, Nelson D R, Windus A L   +4 more
core   +1 more source

Justification of Sexual Reproduction by Modified Penna Model of Ageing

, 2001
We generalize the standard Penna bit-string model of biological ageing by assuming that each deleterious mutation diminishes the survival probability in every time interval by a small percentage. This effect is added to the usual lethal but age-dependent
Bernardes, D. Stauffer, Dasgupta, J.S. Sá Martins, Medeiros, Penna, Redfield, Stauffer, Stauffer, Stauffer, Sá Martins, Sá Martins   +11 more
core   +2 more sources

Asexual reproduction through seeds: the complex case of diplosporous apomixis [PDF]

, 2023
Letizia Cornaro, Camilla Banfi, Mara Cucinotta, Lucia Colombo, Peter J. van Dijk   +4 more
openalex   +1 more source

Rate of adaptation in sexuals and asexuals: A solvable model of the Fisher-Muller effect

, 2013
The adaptation of large asexual populations is hampered by the competition between independently arising beneficial mutations in different individuals, which is known as clonal interference.
Bürger, Felsenstein, Franke, Gillespie, Joachim Krug, Kimura, Kondrashov, Kondrashov, Su-Chan Park, Turner, Wright   +10 more
core   +1 more source

Impact of Nitrate and Ammonium Ratios on Flowering and Asexual Reproduction in the Everbearing Strawberry Cultivar Fragaria × ananassa Albion [PDF]

, 2021
Xiaonan Shi, Ricardo Hernández, M. Hoffmann   +2 more
openalex   +1 more source

What does it take to evolve behaviorally complex organisms? [PDF]

, 2001
What genotypic features explain the evolvability of organisms that have to accomplish many different tasks? The genotype of behaviorally complex organisms may be more likely to encode modular neural architectures because neural modules dedicated to ...
Calabretta, Raffaele, Di Ferdinando, Andrea, Parisi, Domenico, Wagner, Günter P.   +3 more
core  

Exact Solution of an Evolutionary Model without Ageing

, 1999
We introduce an age-structured asexual population model containing all the relevant features of evolutionary ageing theories. Beneficial as well as deleterious mutations, heredity and arbitrary fecundity are present and managed by natural selection.
A. F. R. de Toledo Piza, B. Charlesworth, B. Gompertz, C. E. Finch, C. M. Sorensen, D. Stauffer, G. A. Parker, H. E. Huntley, L. Partridge, M. Heumann, M. Lynch, M. R. Rose, M. Ya. Azbel, Nazareno G. F. de Medeiros, P. B. Medawar, P. H. Leslie, R. M. C. de Almeida, R. R. Reddel, Roberto N. Onody, S. Moss de Oliveira, S. Moss de Oliveira, S. Vollmar, T. J. P. Penna, T. S. Ray   +23 more
core   +1 more source

The effect of stress on rates of asexual reproduction in an invasive planarian. [PDF]

Ecotoxicology, 2023
Rock SL, Oudendijk Z, Kürten FT, Veglia L, Tyukosova V, Bourtzi I, Verzé N, Sloggett JJ.   +7 more
europepmc   +1 more source

A simple algorithm for optimization and model fitting: AGA (asexual genetic algorithm)

, 2009
Context. Mathematical optimization can be used as a computational tool to obtain the optimal solution to a given problem in a systematic and efficient way.
Anglada, Bachiller, Barsony, Bounds, Brooks, Charbonneau, Curiel, E. Martínez-Gómez, Fischer, Fischer, Girart, J. Cantó, Kirkpatrick, Lee, Mayor, McCall, Reipurth, S. Curiel   +17 more
core   +1 more source