Oxidative Challenges Do Not Impact Pheomelanin‐Dependent Coloration in Male Japanese Quails DOI

Vianey Alejandro,

América Hernández,

Lorenzo Pérez‐Rodríguez

et al.

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 18, 2024

ABSTRACT Colorful traits play an important role in animal communication. Melanin‐based colorations are the most extended color animals and produced by two types of endogenous melanic pigments: eumelanins pheomelanins, last ones being least studied context The production pheomelanin requires a semi‐essential amino acid, cysteine, which is also used for synthesis antioxidant, glutathione. Hence, it has been proposed that glutathione may compete cysteine available organism. In case, pheomelanic predicted to be less intense when individual facing oxidative challenge, therefore, they would provide information on status bearer. Here, we experimentally evaluated this hypothesis using male Japanese quails ( Coturnix japonica ) as model study, species with pheomelanin‐based plumage breast cheeks. During feather growth, individuals were exposed one three possible conditions: Control (saline), challenge Escherichia coli lipopolysaccharide injections), or exogenous (paraquat injections). Contrary predictions, found that: (1) Birds from groups exhibited feathers after experimental manipulation, magnitude change did not differ among groups. (2) There was no effect treatments proportion reduced/oxidized glutathione, index status. (3) Lipid peroxidation lower birds paraquat experiencing stronger decline than other (4) Cysteine total levels decreased differences per group decline. Taken together results do support plays key at determining variation intensity colorations.

Language: Английский

Increased male-induced harm in response to female-limited selection: interactive effects between intra- and interlocus sexual conflict? DOI Creative Commons
Ana Á. Romero‐Haro, Lorenzo Pérez‐Rodríguez, Barbara Tschirren

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(1997)

Published: April 26, 2023

Interlocus sexual conflict (IRSC) occurs because of shared interactions that have opposite effects on male and female fitness. Typically, it is assumed loci involved in IRSC sex-limited expression are thus not directly affected by selective pressures acting the other sex. However, if pleiotropic sex, intersexual selection can shape evolutionary dynamics escalation resolution, as well evolution reproductive traits linked to loci, vice versa. Here we used an artificial approach Japanese quail ( Coturnix japonica ) test female-limited investment affects amount harm caused males during mating. We found originating from lines selected for high more oxidative damage tract than low investment. This male-induced was specific oviduct tissues, suggesting ejaculate-mediated. Our results suggest shapes may contribute maintenance variation

Language: Английский

Citations

6
Quantitative trait loci mapping of innate fear behavior in day-old F2 chickens of Japanese Oh-Shamo and White Leghorn breeds using restriction site-associated DNA sequencing DOI Creative Commons

Vanessa Viterbo Velasco,

Takayuki Ochiai,

Masaoki Tsudzuki

et al.

Poultry Science, Journal Year: 2023, Volume and Issue: 103(1), P. 103228 - 103228

Published: Oct. 24, 2023

Understanding the genetic mechanisms that underlie innate fear behavior is essential for improving management and performance of poultry industry. This study aimed to map QTL associated with responses in open field (OF) tonic immobility (TI) tests, using an F2 chicken intercross population between 2 behaviorally distinct breeds: aggressive Japanese Oh-Shamo (OSM) docile White Leghorn T-line (WL-T). Genome-wide analysis OF TI traits was conducted 2,109 single nucleotide polymorphism (SNP) markers obtained through restriction site-associated DNA sequencing (RAD-seq). While several suggestive were identified at genome-wide 20% significance threshold levels, revealed significant (total distance maximum speed) 5% levels. These located 12.34 30.49 megabase (Mb) on chromosome 1 40.02 63.38 Mb 2, explaining 6.75 7.40% total variances. findings provide valuable insights industry, particularly refining strategies informing targeted breeding efforts.

Language: Английский

Citations

3
Why is measuring and predicting fitness under genomic conflict so hard? DOI Creative Commons
Jessica K. Abbott, Katrine K. Lund‐Hansen, Colin Olito

et al.

Current Opinion in Genetics & Development, Journal Year: 2023, Volume and Issue: 81, P. 102070 - 102070

Published: June 25, 2023

Genomic conflict between the sexes is caused by differences in optimal male and female reproductive strategies, a major contributor to genetic, phenotypic, life history variation. While early experimental work appeared strongly support sexual paradigm, recent has produced more ambiguous results. Recent advances evolution studies combined with theoretical arguments can shed light on why measuring fitness under so challenging, including incidental alteration of mating dynamics, demographic effects, inherent complexity what quantity selection maximizes. We stress that non-intuitive results do not necessarily mean absence conflict, follow-up experiments determine priori predictions failed ultimately teach us than if they had been confirmed.

Language: Английский

Citations

2
The association between age and telomere length is age‐dependent: Evidence for a threshold model of telomere length maintenance DOI Creative Commons
Ana Á. Romero‐Haro, G. Mulder, Mark F. Haussmann

et al.

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, Journal Year: 2024, Volume and Issue: 341(4), P. 338 - 344

Published: Jan. 22, 2024

Abstract Telomere length and dynamics are commonly used biomarkers of somatic state, yet the role telomeres underlying aging process is still debated. Indeed, to date, empirical evidence for an association between age telomere mixed. Here, we test if age‐dependency can provide a potential explanation reported inconsistencies across studies. To this end, quantified by restriction fragment analysis in two groups Japanese quail ( Coturnix japonica ) that differed their distribution. One group consisted young adults only, whereas second wide range ages. In group, there was highly significant negative age, no found all‐ages group. This difference not due length‐dependent selective disappearance. Our results shows age‐dependent suggest costs benefits associated with maintenance dynamic individual's life course.

Language: Английский

Citations

0
Sexual Conflict DOI
Alison Pischedda, Andrew D. Stewart, Edward H. Morrow

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Citations

0
Oxidative Challenges Do Not Impact Pheomelanin‐Dependent Coloration in Male Japanese Quails DOI

Vianey Alejandro,

América Hernández,

Lorenzo Pérez‐Rodríguez

et al.

Journal of Experimental Zoology Part A Ecological and Integrative Physiology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 18, 2024

ABSTRACT Colorful traits play an important role in animal communication. Melanin‐based colorations are the most extended color animals and produced by two types of endogenous melanic pigments: eumelanins pheomelanins, last ones being least studied context The production pheomelanin requires a semi‐essential amino acid, cysteine, which is also used for synthesis antioxidant, glutathione. Hence, it has been proposed that glutathione may compete cysteine available organism. In case, pheomelanic predicted to be less intense when individual facing oxidative challenge, therefore, they would provide information on status bearer. Here, we experimentally evaluated this hypothesis using male Japanese quails ( Coturnix japonica ) as model study, species with pheomelanin‐based plumage breast cheeks. During feather growth, individuals were exposed one three possible conditions: Control (saline), challenge Escherichia coli lipopolysaccharide injections), or exogenous (paraquat injections). Contrary predictions, found that: (1) Birds from groups exhibited feathers after experimental manipulation, magnitude change did not differ among groups. (2) There was no effect treatments proportion reduced/oxidized glutathione, index status. (3) Lipid peroxidation lower birds paraquat experiencing stronger decline than other (4) Cysteine total levels decreased differences per group decline. Taken together results do support plays key at determining variation intensity colorations.

Language: Английский

Citations

0