Results 131 to 140 of about 422,026 (334)

Asymmetric assortative mating and queen polyandry are linked to a supergene controlling ant social organization

Molecular Ecology, 2018
Nonrecombining genomic variants underlie spectacular social polymorphisms, from bird mating systems to ant social organization. Because these “social supergenes” affect multiple phenotypic traits linked to survival and reproduction, explaining their ...
A. Avril, J. Purcell, A. Brelsford, M. Chapuisat   +3 more
semanticscholar   +1 more source

Family Matters: Exploring the Link Between Parental and Executive Financial Misconduct

Journal of Accounting Research, EarlyView.
ABSTRACT Using a novel data set of misconduct records for Finnish CEOs and directors and their parents, we explore whether corporate executives’ financial misconduct is associated with similar behavior by their parents. Controlling for various other factors of executive financial misconduct, we find that executives are significantly more likely to ...
JENNI KALLUNKI, JUHA‐PEKKA KALLUNKI, WAYNE LANDSMAN, EMMA‐RIIKKA MYLLYMÄKI, LASSE NIEMI   +4 more
wiley   +1 more source

Evolution of assortative mating in a population expressing dominance.

PLoS ONE, 2011
In this article, we study the influence of dominance on the evolution of assortative mating. We perform a population-genetic analysis of a two-locus two-allele model.
Kristan A Schneider, Stephan Peischl
doaj   +1 more source

Neoclassical development of genetic sexing strains for insect pest and disease vector control

Insect Science, EarlyView.
The sterile insect technique has been effectively used for decades, and an important component is the availability of sex separation systems, in particular genetic sexing strains. Classical approaches, such as irradiation‐induced chromosomal translocations, have yielded stable strains for species like the Mediterranean fruit fly.
Giovanni Petrucci, Maria‐Eleni Gregoriou, Philippos Aris Papathanos, Marc F. Schetelig, Zhijian Tu, Kostas Bourtzis   +5 more
wiley   +1 more source

Colour Morphs as Alternative Solutions to the Trade‐Off Predicted by the Immuno‐Competence Handicap Hypothesis

Integrative Zoology, EarlyView.
In this study, we tested whether white and yellow morphs of the common wall lizard (Podarcis muralis) adopt alternative strategies shaped by the immuno‐competence handicap hypotheses (ICHH). We found that testosterone‐induced immune suppression was stronger in white males, while aggression decreased in both morphs.
Roberto Sacchi, Alan J. Coladonato, Stefano Scali, Marco A. L. Zuffi, Rupert Palme, Marco Mangiacotti   +5 more
wiley   +1 more source

Spatial self-structuring accelerates adaptive speciation in sexual populations [PDF]

, 2012
Questions: How does spatial self-structuring influence the waiting time until adaptive speciation in a population with sexual reproduction? Which mechanisms underlie this effect? Model: Using a spatially explicit individual-based multi-locus model of
Dieckmann, U., Fazalova, V.
core  

Hox Gene Variation Drives Morphological Specialization of Humpback Grouper Cromileptes altivelis

Integrative Zoology, EarlyView.
Cromileptes altivelis exhibits a distinctive “sunken head and humpback” morphology, formed through cranial remodeling. Genetic analyses identified unique amino acid variants in Hoxa7a and Hoxa10b, with functional tests confirming their role in enhancing osteoblast activity and driving cranial remodeling.
Xiaoying Cao, Zhaowei Zhong, Lisheng Wu, Quanyin Liu, Shaoxiong Ding   +4 more
wiley   +1 more source

The Effects of Assortative Mating on Income Inequality: A Decompositional Analysis

, 2006
Using the Australian Bureau of Statistics’ Survey of Income and Household Costs, this paper explores the effect of changing assortative mating patterns on income inequality.
Worner, Shane Mathew
core  

Asymmetric Platform Oligopoly

The RAND Journal of Economics, EarlyView.
ABSTRACT We propose a tractable model of asymmetric platform oligopoly with logit demand in which users from two distinct groups are subject to within‐group and cross‐group network effects and decide which platform to join. We characterize the equilibrium when platforms manage user access by setting participation fees for each user group.
Martin Peitz, Susumu Sato
wiley   +1 more source

Buyer‐Optimal Platform Design

The RAND Journal of Economics, EarlyView.
ABSTRACT A platform matches a unit mass of sellers, each owning a single product of heterogeneous quality, to a unit mass of buyers with differing valuations for unit‐quality. After matching, sellers make take‐it‐or‐leave‐it price‐offers to buyers. Initially, valuations of buyers are only known to them and the platform, but sellers make inferences from
Daniele Condorelli, Balazs Szentes
wiley   +1 more source