Results 101 to 110 of about 66,642 (275)

Asexual reproduction for improved livestock breeding

open access: yesTrends 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   +3 more
openaire   +2 more sources

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

open access: yes, 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   +17 more
core   +1 more source

Anholocyclic overwintering of Myzus persicae: Host plant selection as a driver for aphid performance and survival

open access: yesAnnals of Applied Biology, EarlyView.
The green peach aphid, Myzus persicae, is the main virus vector in sugar beet. We examine its performance on potential winter hosts as well as the host selection and overwintering success of anholicyclic aphids in order to improve forecasting models for virus outbreaks through targeted monitoring of suitable winter hosts. Abstract Virus yellows (VY) is
Mohamed Matared   +2 more
wiley   +1 more source

Chromosome length scaling in haploid, asexual reproduction [PDF]

open access: yesJournal of Physics: Condensed Matter, 2007
We study the genetic behaviour of a population formed by haploid individuals which reproduce asexually. The genetic information for each individual is stored along a bit-string (or chromosome) with L bits, where 0-bits represent the wild-type allele and 1-bits correspond to harmful mutations.
openaire   +2 more sources

Analysis of plant and environmental samples for the quarantine fungus Phyllosticta citricarpa in four European citrus‐growing areas

open access: yesAnnals of Applied Biology, EarlyView.
Methodologies for the early detection of Phyllosticta citricarpa in air and rainwater samples were developed and applied over three consecutive years (2018–2021) in four European citrus sites, previously reported to harbour the pathogen. Phyllosticta citricarpa was not detected in plant, air, or rainwater samples, and no CBS symptoms were observed on ...
Irene Vloutoglou   +17 more
wiley   +1 more source

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

open access: yes, 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   +3 more
core  

Success of restoration strategies in preventing extirpation of 2 critically endangered coral species

open access: yesConservation Biology, EarlyView.
Abstract An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral (Acropora palmata) and staghorn coral (Acropora cervicornis), were severely affected.
Erinn M. Muller   +29 more
wiley   +1 more source

Advancing conservation breeding programs for marine invertebrates

open access: yesConservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam   +3 more
wiley   +1 more source

The Effects of LED Daylength Extensions on the Daily Activity Patterns of a Greenhouse Biological Control Agent, Aphidius matricariae

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
We used automated activity monitors to examine how light‐emitting diode illumination affects the daily locomotor activity of the parasitoid biocontrol agent Aphidius matricariae. We compared 4‐ to 20 h broad‐spectrum white (BSW) photoperiods, and 12 h BSW photoperiods extended with an additional 6 h of red‐blue, red‐green‐blue, or BSW light, or no ...
Jessica L. Fraser   +2 more
wiley   +1 more source

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

open access: yes, 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   +4 more
core   +1 more source

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