Evolutionary interactions between thermal ecology and sexual selection

Ecology Letters, Journal Year: 2022, Volume and Issue: 25(9), P. 1919 - 1936

Published: July 13, 2022

Abstract Thermal ecology and mate competition are both pervasive features of ecological adaptation. A surge recent work has uncovered the diversity ways in which temperature affects mating interactions sexual selection. However, potential for thermal biology reproductive to evolve together as organisms adapt their environment been underappreciated. Here, we develop a series hypotheses regarding (1) not only how system dynamics, but also dynamics can generate selection on traits; (2) consequences favour reciprocal co‐adaptation traits. We discuss our context pre‐copulatory post‐copulatory processes. call future integrating experimental phylogenetic comparative approaches understand evolutionary feedbacks between Overall, studying may be necessary have adapted environments past could persist future.

Language: Английский

---

When and how can we predict adaptive responses to climate change?

Evolution Letters, Journal Year: 2023, Volume and Issue: 8(1), P. 172 - 187

Published: Nov. 29, 2023

Predicting if, when, and how populations can adapt to climate change constitutes one of the greatest challenges in science today. Here, we build from contributions special issue on evolutionary adaptation change, a survey its authors, recent literature explore limits opportunities for predicting adaptive responses change. We outline what might be predictable now, future, perhaps never even with our best efforts. More accurate predictions are expected traits characterized by well-understood mapping between genotypes phenotypes experiencing strong, direct selection due A meta-analysis revealed an overall moderate trait heritability evolvability studies performed under future conditions but indicated no significant current conditions, suggesting neither more nor less genetic variation adapting climates. population persistence rescue remains uncertain, especially many species without sufficient ecological data. Still, when polled, authors contributing this were relatively optimistic about ability predict Predictions will improve as expand efforts understand diverse organisms, their ecology, potential. Advancements functional genomic resources, extension non-model union experiments "omics," should also enhance predictions. Although challenging, small advances reduce substantial uncertainties surrounding

Language: Английский

---

Effects of temperature anomaly on sperm quality: A multi-center study of 33,234 men

Heliyon, Journal Year: 2024, Volume and Issue: 10(5), P. e26765 - e26765

Published: Feb. 22, 2024

Global fertility rates continue to decline and sperm quality is a prime factor affecting male fertility. Both extreme cold heat have been demonstrated be associated with decreased quality, but no epidemiological studies considered human adaptation long-term temperature. Our aim was conduct multi-center retrospective cohort study investigate exposure-response relationship between temperature anomaly (TA) that deviate from climate patterns quality.

Language: Английский

---

The genetic basis and adult reproductive consequences of developmental thermal plasticity

Journal of Animal Ecology, Journal Year: 2022, Volume and Issue: 91(6), P. 1119 - 1134

Published: Jan. 21, 2022

Abstract Increasing temperature and thermal variability generate profound selection on populations. Given the fast rate of environmental change, understanding role plasticity genetic adaptation in response to increasing temperatures is critical. This may be especially true for effects reproductive traits which fertility limits at high lower than survival traits. Consequences changing environments during development adult phenotypes particularly problematic core such as reproduction that begin early development. Here we examine consequences developmental subsequent its basis. We used a panel Drosophila melanogaster (the Genetic Reference Panel; DGRP) male performance was previously defined either showing relatively little (status = ‘high’‐performing lines) or substantial (‘low’‐performing decline when exposed temperatures. reaction norm approach quantify variation multiple traits, including sex‐specific responses, identify candidate genes underlying variation. Developmental stress impacted means norms all except offspring sex ratio. Mating success declined increased with no difference between low lines, whereas resulted declines both female productivity but depended line status. Fertility number were positively correlated within sexes across males more affected females. identified 933 SNPs significant evolved differentiation lines. In all, 54 these lie genomic windows overall differentiation, have genotype are associated 16 enriched affecting reproduction, responses autophagy other organisms. Our results illustrate considerable several following temperature, differentiated loci relevant phenotypic contribute this population While our work single population, align an studies demonstrating potential stronger males. Such large fitness costs short‐ long‐term evolution populations warming world.

Language: Английский

---

Understanding climate change response in the age of genomics

Journal of Animal Ecology, Journal Year: 2022, Volume and Issue: 91(6), P. 1056 - 1063

Published: June 1, 2022

Language: Английский

---

Recovery from heat‐induced infertility—A study of reproductive tissue responses and fitness consequences in male Drosophila melanogaster

Ecology and Evolution, Journal Year: 2022, Volume and Issue: 12(12)

Published: Nov. 30, 2022

Abstract The predicted temperature increase caused by climate change is a threat to biodiversity. Across animal taxa, male reproduction often sensitive elevated temperatures leading fertility loss, and in more adverse scenarios, this can result sterility when males reach their upper thermal limit. Here, we investigate temperature‐induced changes reproductive tissues, reduction, sterility, the associated fitness loss during subsequent recovery phase Drosophila melanogaster . We heat‐stressed development either allowed them recover or not early adulthood while measuring several determinants of success. found significant differences rate, organ sizes, sperm production, other key traits among from our different treatments. Sperm maturation was impaired before reaching threshold. While some effects were reversible, did compensate for due damage imposed development. Surprisingly, developmental heat stress damaging accessory gland growth, female post‐mating responses mediated seminal fluid proteins regardless possibility recovery. suggest that sub‐lethal reduction are combination inefficient functionality both testes.

Language: Английский

---

Experimental evidence for stronger impacts of larval but not adult rearing temperature on female fertility and lifespan in a seed beetle

Evolutionary Ecology, Journal Year: 2023, Volume and Issue: 37(3), P. 545 - 567

Published: Jan. 11, 2023

Abstract Temperature impacts behaviour, physiology and life-history of many life forms. In ectotherms, phenotypic plasticity within reproductive traits could act as a buffer allowing adaptation to continued global warming biological limits. But there be costs involved, potentially affecting adult performance population growth. Empirical data on the expression when different stages are exposed is still lacking. Plasticity in key components fitness (e.g., reproduction) can impose trade-offs. Ectotherms sensitive temperature variation resulting thermal stress known impact reproduction. So far, research this species has focused males. Here, I explore how rearing impacted female reproduction lifespan bruchid beetle Callosobruchus maculatus by exposing them four constant temperatures (17 °C, 25 27 °C 33 °C) during larval or stages. these experiments, cohorts (exposed 17 from egg adulthood) were tested common garden setting at cohorts, after having developed entirely °C). found stage-specific all measured here: fecundity, morphological dimensions (length width), hatching success (female fertility). Under conditions, fecundity fertility was drastically reduced (by 51% 42%) compared controls (27 Female longest across both rearing: 36% 55% controls. Collectively, results indicate that had greater impacts. Integrating effects, present evidence more development system.

Language: Английский

---

scRNA-seq Reveals Novel Genetic Pathways and Sex Chromosome Regulation in Tribolium Spermatogenesis

Genome Biology and Evolution, Journal Year: 2024, Volume and Issue: 16(3)

Published: March 1, 2024

Abstract Spermatogenesis is critical to sexual reproduction yet evolves rapidly in many organisms. High-throughput single-cell transcriptomics promises unparalleled insight into this important process but understanding can be impeded nonmodel systems by a lack of known genes that reliably demarcate biologically meaningful cell populations. Tribolium castaneum, the red flour beetle, lacks markers for spermatogenesis found insect species like Drosophila melanogaster. Using sequencing data collected from adult beetle testes, we implement strategy elucidating populations using transient expression stage identification markers, weighted principal component clustering, and SNP-based haploid/diploid phasing. We identify correspond observable points sperm differentiation find specific each stage. Our results indicate molecular pathways underlying Coleoptera are substantially diverged those Diptera. also show most on X chromosome experience meiotic sex inactivation. Temporal MSL complex homologs coupled with spatial analysis potential chromatin entry sites further suggests dosage compensation machinery may mediate escape inactivation postmeiotic reactivation chromosome.

Language: Английский

---

Sex‐specific variation in thermal sensitivity has multiple negative effects on reproductive trait performance

Journal of Animal Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Abstract Understanding how increasing temperatures influence ectotherm population growth rate is necessary for predicting persistence. Population depends on the thermal performance of multiple life‐history traits that have different sensitivities. Reproductive are considered more thermally sensitive than other traits, such as survival and development rate. Moreover, sensitivity reproductive can be sex‐specific, which may differentially affect growth. However, research concurrently assessing sex‐specific heat stress limited. We investigated effect pupal in both sexes to determine performance. Individuals butterfly Pieris napi were reared at either 22°C or 29°C throughout larval stages. The latter temperature reflects fastest this population, influencing generation time, a common metric. recorded adult body weight sexes. After eclosion, males females from treatments allowed interact, mating success, copulation duration, egg production, fertility male sterility recovery measured. A subset mated was dissected assess number length fertilising eupyrene non‐fertilising apyrene sperm transferred by each treatment. While elevated reduced resulted smaller weights sexes, substantial effects observed. Mating success heat‐stressed but not males. In contrast, production unaffected females, while males, despite having longer durations, exhibited near‐complete sterility. Male heat‐induced mediated disruption transfer. remating did recover fertility, suggesting continued negative production. Our results highlight reproduction, illustrating generating optimal non‐reproductive like rate, negatively impact fitness. These consequences persistence, highlighting necessity incorporate these findings into future advanced models species' responses climate warming.

Language: Английский

---

Heat stress reveals a fertility debt owing to postcopulatory sexual selection

Evolution Letters, Journal Year: 2023, Volume and Issue: 8(1), P. 101 - 113

Published: March 16, 2023

Abstract Climates are changing rapidly, demanding equally rapid adaptation of natural populations. Whether sexual selection can aid such is under debate; while should promote when individuals with high mating success also best adapted to their local surroundings, the expression sexually selected traits incur costs. Here we asked what demographic consequences costs may be once climates change become harsher and strength increases. We first adopted a classic life history theory framework, incorporating trade-off between reproduction maintenance, applied it male germline generate formalized predictions for how an evolutionary strong postcopulatory (sperm competition) affect fertility acute adult heat stress. then tested these by assessing thermal sensitivity (TSF) in replicated lineages seed beetles maintained 68 generations three alternative regimes manipulating opportunity selection. In line theoretical predictions, find that males evolving suffer from increased TSF. Interestingly, females regime selection, who experienced relaxed on own reproductive effort, had benign settings but suffered TSF, like brothers. This implies female TSF evolved through genetic correlation males. Paternal not maternal stress reduced offspring no evidence adaptive transgenerational plasticity among heat-exposed offspring, indicating observed effects compound over generations. Our results suggest trade-offs increasing revealed harsh environments. put polyandrous species immediate risk during extreme waves expected future climate change.

Language: Английский

---