Topics

Genetic benefits of extreme sequential polyandry in a terrestrial-breeding frog.

08:00 EDT 14th August 2019 | BioPortfolio

Summary of "Genetic benefits of extreme sequential polyandry in a terrestrial-breeding frog."

Sequential polyandry may evolve as an insurance mechanism to reduce the risk that females choose mates that are genetically inferior (intrinsic male quality hypothesis) or genetically incompatible (genetic incompatibility hypothesis). The prevalence of such indirect benefits remains controversial, however, because studies estimating the contributions of additive and non-additive sources of genetic variation to offspring fitness have been limited to a small number of taxonomic groups. Here, we use artificial fertilisation techniques combined with a cross-classified breeding design (North Carolina Type II) to simultaneously test the 'good genes hypothesis' and the 'genetic incompatibility hypothesis' in the brown toadlet (Pseudophryne bibronii); a terrestrial breeding species with extreme sequential polyandry. Our results revealed no significant additive or non-additive genetic effects on fertilisation success. Moreover, they revealed no significant additive genetic effects, but highly significant non-additive genetic effects (sire by dam interaction effects), on hatching success and larval survival to initial and complete metamorphosis. Taken together, these results indicate that offspring viability is significantly influenced by the combination of parental genotypes, and that negative interactions between parental genetic elements manifest during embryonic and larval development. More broadly, our findings provide quantitative genetic evidence that insurance against genetic incompatibility favours the evolution and maintenance of sequential polyandry. This article is protected by copyright. All rights reserved.

Affiliation

Journal Details

This article was published in the following journal.

Name: Evolution; international journal of organic evolution
ISSN: 1558-5646
Pages:

Links

DeepDyve research library

PubMed Articles [10791 Associated PubMed Articles listed on BioPortfolio]

No selection for change in polyandry under experimental evolution.

What drives mating system variation is a major question in evolutionary biology. Female multiple mating (polyandry) has diverse evolutionary consequences, and there are many potential benefits and cos...

Exploration of time sequential, patient specific 3D heart unlocks clinical understanding.

The purpose was to create a time sequential three-dimensional virtual reality model, also referred to as a four-dimensional model, to explore its possible benefit and clinical applications. We hypothe...

Genetic interaction networks in cancer cells.

The genotype-to-phenotype relationship in health and disease is complex and influenced by both an individual's environment and their unique genome. Personal genetic variants can modulate gene function...

Technological advances in maize breeding: past, present and future.

Maize has for many decades been both one of the most important crops worldwide and one of the primary genetic model organisms. More recently, maize breeding has been impacted by rapid technological ad...

Limits to environmental masking of genetic quality in sexual signals.

There is considerable debate over the value of male sexual ornaments as signals of genetic quality. Studies alternately report that environmental variation enhances or diminishes the genetic signal, o...

Clinical Trials [5029 Associated Clinical Trials listed on BioPortfolio]

The TEMPO (Tracing the Effect of the MC4 Pathway in Obesity) Registry

A voluntary prospective study that will allow registration and follow-up of individuals with MC4R pathway genetic obesity.

Genetic Sources of Variability of the Adaptation of the Ventricular Repolarisation

The main objective is to research for genetic factors involved in the extreme modifications of the QT interval of the electrocardiogram in answer to a pharmacological stimulation (sotalol)...

Me-GC: A Randomized Controlled Trial of Meditation for Genetic Counselors

This study is designed to determine whether meditation is beneficial for genetic counselors and genetic counseling students. The main goal is to see if meditation can help with professiona...

The Genetic, Protein, and Lipid Basis of Variation in Cholesterol Efflux

The rationale of this research is that deep phenotyping of individuals at the extremes of cholesterol efflux will identify key determinants of efflux that are potential novel therapeutic t...

A Efficacy and Tolerability Study of TEGAFOX Sequential S-1 in the Treatment of Adjuvant Chemotherapy for Gastric Cancer

This study is designed to compare the three chemotherapy regimens(TEGAFOX Sequential S-1 or SOX Sequential S-1 or SOX non-Sequential S-1) for postoperative patients with gastric cancer, ob...

Medical and Biotech [MESH] Definitions

The production of offspring by selective mating or HYBRIDIZATION, GENETIC in animals or plants.

A species of the family Ranidae which occurs primarily in the eastern half of the United States and Canada. Two subspecies exist, commonly referred to as green frog (R. c. melanota) and bronze frog (R. c. clamitans).

Deliberate breeding of two different individuals that results in offspring that carry part of the genetic material of each parent. The parent organisms must be genetically compatible and may be from different varieties or closely related species.

Improving the NUTRITIONAL VALUE of plant foods by augmenting the plant's environment, by using PLANT BREEDING, or by GENETIC ENGINEERING plants to increase their ability to synthesize VITAMINS or uptake essential NUTRIENTS from the soil.

A 1974 Federal act which preempts states' rights with regard to workers' pension benefits and employee benefits. It does not affect the benefits and rights of employees whose employer is self-insured. (From Slee & Slee, Health Care Reform Terms, 1993)

Quick Search


DeepDyve research library

Searches Linking to this Article