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https://read.qxmd.com/read/38531929/genetic-similarity-between-relatives-provides-evidence-on-the-presence-and-history-of-assortative-mating
#1
JOURNAL ARTICLE
Hans Fredrik Sunde, Nikolai Haahjem Eftedal, Rosa Cheesman, Elizabeth C Corfield, Thomas H Kleppesto, Anne Caroline Seierstad, Eivind Ystrom, Espen Moen Eilertsen, Fartein Ask Torvik
Assortative mating - the non-random mating of individuals with similar traits - is known to increase trait-specific genetic variance and genetic similarity between relatives. However, empirical evidence is limited for many traits, and the implications hinge on whether assortative mating has started recently or many generations ago. Here we show theoretically and empirically that genetic similarity between relatives can provide evidence on the presence and history of assortative mating. First, we employed path analysis to understand how assortative mating affects genetic similarity between family members across generations, finding that similarity between distant relatives is more affected than close relatives...
March 26, 2024: Nature Communications
https://read.qxmd.com/read/38530852/color-polymorphism-and-mating-trends-in-a-population-of-the-alpine-leaf-beetle-oreina-gloriosa
#2
JOURNAL ARTICLE
Angela Roggero, Daniele Alù, Alex Laini, Antonio Rolando, Claudia Palestrini
The bright colors of Alpine leaf beetles (Coleoptera, Chrysomelidae) are thought to act as aposematic signals against predation. Within the European Alps, at least six species display a basal color of either blue or green, likely configuring a classic case of müllerian mimicry. In this context, intra-population color polymorphism is paradoxical as the existence of numerous color morphs might hamper the establishment of a search image in visual predators. Assortative mating may be one of the main factors contributing to the maintenance of polymorphic populations...
2024: PloS One
https://read.qxmd.com/read/38466135/genetic-basis-and-evolutionary-forces-of-sexually-dimorphic-colour-variation-in-a-toad-headed-agamid-lizard
#3
JOURNAL ARTICLE
Bin Lu, Xia Qiu, Weizhao Yang, Zhongyi Yao, Xiaofeng Ma, Shunyan Deng, Qi Zhang, Jinzhong Fu, Yin Qi
In the animal kingdom, sexually dimorphic colour variation is a widespread phenomenon that significantly influences survival and reproductive success. However, the genetic underpinnings of this variation remain inadequately understood. Our investigation into sexually dimorphic colour variation in the desert-dwelling Guinan population (GN) of the toad-headed agamid lizard (Phrynocephalus putjatai) utilized a multidisciplinary approach, encompassing phenotypic, ultrastructural, biochemical, genomic analyses, and behavioral experiments...
March 11, 2024: Molecular Biology and Evolution
https://read.qxmd.com/read/38409260/the-structure-of-psychiatric-comorbidity-without-selection-and-assortative-mating
#4
JOURNAL ARTICLE
Ziada Ayorech, Fartein Ask Torvik, Rosa Cheesman, Espen M Eilertsen, Mathias Valstad, Ludvig Daae Bjørndal, Espen Røysamb, Alexandra Havdahl, Eivind Ystrøm
The widespread comorbidity observed across psychiatric disorders may be the result of processes such as assortative mating, gene-environment correlation, or selection into population studies. Between-family analyses of comorbidity are subject to these sources of bias, whereas within-family analyses are not. Because of Mendelian inheritance, alleles are randomly assigned within families, conditional on parental alleles. We exploit this variation to compare the structure of comorbidity across broad psychiatric polygenic scores when calculated either between-family (child polygenic scores) or within-family (child polygenic scores regressed on parental polygenic scores) in over 25,000 genotyped parent-offspring trios from the Norwegian Mother Father and Child Cohort study (MoBa)...
February 26, 2024: Translational Psychiatry
https://read.qxmd.com/read/38403065/glucose-aversion-a-behavioral-resistance-mechanism-in-the-german-cockroach
#5
REVIEW
Ayako Wada-Katsumata, Coby Schal
The German cockroach is a valuable model for research on indoor pest management strategies and for understanding mechanisms of adaptive evolution under intense anthropogenic selection. Under the selection pressure of toxic baits, populations of the German cockroach have evolved a variety of physiological and behavioral resistance mechanisms. In this review, we focus on glucose aversion, an adaptive trait that underlies a behavioral resistance to baits. Taste polymorphism, a change in taste quality of glucose from sweet to bitter causes cockroaches to avoid glucose-containing baits...
February 23, 2024: Current Opinion in Insect Science
https://read.qxmd.com/read/38366106/the-impact-of-assortative-mating-participation-bias-and-socioeconomic-status-on-the-polygenic-risk-of-behavioural-and-psychiatric-traits
#6
JOURNAL ARTICLE
Brenda Cabrera-Mendoza, Frank R Wendt, Gita A Pathak, Loic Yengo, Renato Polimanti
To investigate assortative mating (AM), participation bias and socioeconomic status (SES) with respect to the genetics of behavioural and psychiatric traits, we estimated AM signatures using gametic phase disequilibrium and within-spouses and within-siblings polygenic risk score correlation analyses, also performing a SES conditional analysis. The cross-method meta-analysis identified AM genetic signatures for multiple alcohol-related phenotypes, bipolar disorder, major depressive disorder, schizophrenia and Tourette syndrome...
February 16, 2024: Nature Human Behaviour
https://read.qxmd.com/read/38316558/genetic-coupling-of-mate-recognition-systems-in-the-genomic-era
#7
JOURNAL ARTICLE
Michael G Ritchie, Roger K Butlin
The concept of "genetic coupling" in mate recognition systems arose in the 1960s as a potential mechanism to maintain coordination between signals and receivers during evolutionary divergence. At its most basic it proposed that the same genes might influence trait and preference, and therefore mutations could result in coordinated changes in both traits. Since then, the concept has expanded in scope and is often used to include linkage or genetic correlation between recognition system components. Here we review evidence for genetic coupling, concentrating on proposed examples of a common genetic basis for signals and preferences...
February 5, 2024: Cold Spring Harbor Perspectives in Biology
https://read.qxmd.com/read/38306464/divergent-warning-patterns-influence-male-and-female-mating-behaviours-in-a-tropical-butterfly
#8
JOURNAL ARTICLE
Chi-Yun Kuo, Lina Melo-Flóres, Andrea Aragón, Morgan M Oberweiser, W Owen McMillan, Carolina Pardo-Diaz, Camilo Salazar, Richard M Merrill
Traits under divergent ecological selection that also function during mating can be important in maintaining species boundaries. Few studies have considered mutual mate choice, where both males and females base mating decisions on the same trait. Wing colouration in Heliconius butterflies evolved as a warning signal but also functions as a mating cue. We investigated the contribution of visual preference to assortative mating in an aposematic butterfly Heliconius cydno in the context of reproductive isolation with its sympatric, visually distinct relative Heliconius melpomene...
January 19, 2024: Journal of Evolutionary Biology
https://read.qxmd.com/read/38285657/sympatry-and-parapatry-among-rocky-reef-cichlids-of-lake-victoria-explained-by-female-mating-preferences
#9
JOURNAL ARTICLE
Ola Svensson, Katie Woodhouse, Alan Smith, Ole Seehausen, George F Turner
Work on the Lake Victoria cichlids Pundamilia nyererei (red dorsum males, deeper water), Pundamilia pundamilia (blue males, shallower water) and related species pairs has provided insights into processes of speciation. Here, we investigate the female mating behaviour of 5 Pundamilia species and 4 of their F1 hybrids through mate choice trials and paternity testing. Complete assortative mating was observed among all sympatric species. Parapatric species with similar depth habitat distributions interbred whereas other parapatric and allopatric species showed complete assortative mating...
January 29, 2024: Journal of Evolutionary Biology
https://read.qxmd.com/read/38240162/genetic-structure-uv-vision-wing-coloration-and-size-coincide-with-colour-polymorphism-in-fabriciana-adippe-butterflies
#10
JOURNAL ARTICLE
Daniela Polic, Yeşerin Yıldırım, Sami Merilaita, Markus Franzén, Anders Forsman
Colour polymorphisms have long served as model systems in evolutionary studies and continue to inform about processes involved in the origin and dynamics of biodiversity. Modern sequencing tools allow for evaluating whether phenotypic differences between morphs reflect genetic differentiation rather than developmental plasticity, and for investigating whether polymorphisms represent intermediate stages of diversification towards speciation. We investigated phenotypic and genetic differentiation between two colour morphs of the butterfly Fabriciana adippe using a combination of ddRAD-sequencing and comparisons of body size, colour patterns and optical properties of bright wing spots...
January 19, 2024: Molecular Ecology
https://read.qxmd.com/read/38226169/genomic-insights-into-the-montseny-brook-newt-calotriton-arnoldi-a-critically-endangered-glacial-relict
#11
JOURNAL ARTICLE
Adrián Talavera, Marc Palmada-Flores, Bernat Burriel-Carranza, Emilio Valbuena-Ureña, Gabriel Mochales-Riaño, Dean C Adams, Héctor Tejero-Cicuéndez, Anna Soler-Membrives, Fèlix Amat, Daniel Guinart, Francesc Carbonell, Elena Obon, Tomàs Marquès-Bonet, Salvador Carranza
The Montseny brook newt ( Calotriton arnoldi ), considered the most endangered amphibian in Europe, is a relict salamandrid species endemic to a small massif located in northeastern Spain. Although conservation efforts should always be guided by genomic studies, those are yet scarce among urodeles, hampered by the extreme sizes of their genomes. Here, we present the third available genome assembly for the order Caudata, and the first genomic study of the species and its sister taxon, the Pyrenean brook newt ( Calotriton asper ), combining whole-genome and ddRADseq data...
January 19, 2024: IScience
https://read.qxmd.com/read/38225420/ecological-disruptive-selection-acting-on-quantitative-loci-can-drive-sympatric-speciation
#12
JOURNAL ARTICLE
Pavithra Venkataraman, Supreet Saini
The process of speciation generates biodiversity. According to the null model of speciation, barriers between populations arise in allopatry, where, prior to biology, geography imposes barriers to gene flow. On the other hand, sympatric speciation requires that the process of speciation happen in the absence of a geographical barrier, where the members of the population have no spatial, temporal barriers. Several attempts have been made to theoretically identify the conditions in which speciation can occur in sympatry...
January 15, 2024: NPJ Systems Biology and Applications
https://read.qxmd.com/read/38168304/using-twin-pairs-to-assess-potential-bias-in-polygenic-prediction-of-externalising-behaviours-across-development
#13
Joanna K Bright, Christopher Rayner, Ze Freeman, Helena M S Zavos, Yasmin I Ahmadzadeh, Essi Viding, Tom A McAdams
Prediction from polygenic scores may be confounded sources of passive gene-environment correlation (rGE; e.g. population stratification, assortative mating, and environmentally mediated effects of parental genotype on child phenotype). Using genomic data from 10,000 twin pairs, we asked whether polygenic scores from the recent externalising genome-wide association study predicted conduct problems, ADHD symptomology and callous-unemotional traits, and whether these predictions are biased by rGE. We ran regression models including within-family and between-family polygenic scores, to separate the direct genetic influence on a trait from environmental influences that correlate with genes (indirect genetic effects)...
December 14, 2023: medRxiv
https://read.qxmd.com/read/38089446/robert-mare-s-legacy-advances-in-the-study-of-assortative-mating
#14
JOURNAL ARTICLE
Christine R Schwartz
No abstract text is available yet for this article.
December 2023: Research in Social Stratification and Mobility
https://read.qxmd.com/read/38077008/non-random-mating-patterns-in-education-mental-and-somatic-health-a-population-study-on-within-and-cross-trait-associations
#15
Fartein Ask Torvik, Hans Fredrik Sunde, Rosa Cheesman, Nikolai Haahjem Eftedal, Matthew C Keller, Eivind Ystrom, Espen Moen Eilertsen
Partners resemble each other on many traits, such as health and education. The traits are usually studied one by one in data from established couples and with potential participation bias. We studied all Norwegian parents who had their first child between 2016 and 2020 (N=187,926) and the siblings of these parents. We analysed grade point averages (GPA), educational attainment (EA), and medical records with prospective diagnostic data on 10 mental and 10 somatic health conditions measured 10 to 5 years before childbirth...
November 27, 2023: medRxiv
https://read.qxmd.com/read/38073579/combining-mendelian-randomization-with-the-sibling-comparison-design
#16
JOURNAL ARTICLE
Arvid Sjölander, Thomas Frisell, Sara Öberg, Yunzhang Wang, Sara Hägg
Mendelian randomization (MR) is a popular epidemiologic study design that uses genetic variants as instrumental variables (IVs) to estimate causal effects, while accounting for unmeasured confounding. The validity of the MR design hinges on certain IV assumptions, which may sometimes be violated due to dynastic effects, population stratification, or assortative mating. Since these mechanisms act through parental factors it was recently suggested that the bias resulting from violations of the IV assumptions can be reduced by combing the MR design with the sibling comparison design, which implicitly controls for all factors that are constant within families...
December 11, 2023: Statistics in Medicine
https://read.qxmd.com/read/38059374/effect-on-genetic-diversity-of-the-absence-of-intraspecies-preference-in-2-sympatric-reticulitermes-termite-species-isoptera-rhinotermitidae
#17
JOURNAL ARTICLE
Jia Wu, Ya-Nan Dong, Tong Niu, Huan Wang, Ali Hassan, Bei Du
The recombinant genotypes that can be produced when closely related species mate improve the genetic diversity of the population. Among closely related species, the link between interspecific reproduction behaviors and genetic diversity has barely been studied. Reticulitermes chinensis and R. flaviceps, which live close to each other, were used as research subjects in our study to find out how preferring conspecifics affects reproductive behavior between species. We discovered that neither R. chinensis nor R...
November 1, 2023: Journal of Insect Science
https://read.qxmd.com/read/38038347/the-genomic-footprint-of-social-stratification-in-admixing-american-populations
#18
JOURNAL ARTICLE
Alex Mas Sandoval, Sara Mathieson, Matteo Fumagalli
Cultural and socioeconomic differences stratify human societies and shape their genetic structure beyond the sole effect of geography. Despite mating being limited by sociocultural stratification, most demographic models in population genetics often assume random mating. Taking advantage of the correlation between sociocultural stratification and the proportion of genetic ancestry in admixed populations, we sought to infer the former process in the Americas. To this aim, we define a mating model where the individual proportions of the genome inherited from Native American, European and sub-Saharan African ancestral populations constrain the mating probabilities through ancestry-related assortative mating and sex bias parameters...
December 1, 2023: ELife
https://read.qxmd.com/read/38033176/social-plasticity-enhances-signal-preference-codivergence
#19
JOURNAL ARTICLE
Camille Desjonquères, Bretta Speck, Sara Seidita, Lauren A Cirino, Ignacio Escalante, Clinton Sergi, Jak Maliszewski, Christine Wiese, Gerlinde Hoebel, Nathan W Bailey, Rafael L Rodríguez
AbstractThe social environment is often the most dynamic and fitness-relevant environment animals experience. Here we tested whether plasticity arising from variation in social environments can promote signal-preference divergence-a key prediction of recent speciation theory but one that has proven difficult to test in natural systems. Interactions in mixed social aggregations could reduce, create, or enhance signal-preference differences. In the latter case, social plasticity could establish or increase assortative mating...
December 2023: American Naturalist
https://read.qxmd.com/read/38025733/genetic-divergences-and-hybridization-within-the-sebastes-inermis-complex
#20
JOURNAL ARTICLE
Diego Deville, Kentaro Kawai, Hiroki Fujita, Tetsuya Umino
The Sebastes inermis complex includes three sympatric species ( Sebastes cheni , viz Sebastes inermis , and Sebastes ventricosus ) with clear ecomorphological differences, albeit incomplete reproductive isolation. The presence of putative morphological hybrids (PMH) with plausibly higher fitness than the parent species indicates the need to confirm whether hybridization occurs within the complex. In this sense, we assessed the dynamics of genetic divergence and hybridization within the species complex using a panel of 10 microsatellite loci, and sequences of the mitochondrial control region (D-loop) and the intron-free rhodopsin (RH1) gene...
2023: PeerJ
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