Physical linkage and mate preference generate linkage disequilibrium for behavioral isolation in two parapatric crickets

Blankers, Thomas; Berdan, Emma L.; Hennig, R. Matthias; Mayer, Frieder

doi:10.1111/evo.13706

Cited by 9 publications

(6 citation statements)

References 119 publications

(147 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They diverged 500,000 years ago followed by a long period of bidirectional gene flow that lasted until 18,000 years ago, as revealed by sequence data of gene for mitochondrial cytochrome oxidase I and transcriptome-based SNP data (Gray et al 2008;Blankers et al 2018b). The parapatric origin of G. rubens has been demonstrated, and a mechanism for the coevolution of mating song and preference has been proposed (Blankers et al 2018b(Blankers et al , 2019b. Like this, other studies have utilized the field crickets G. firmus and G. pennsylvanicus, which interact and form a hybrid zone in the Eastern USA.…”

Section: Evolutionary Biologymentioning

confidence: 99%

Dissecting cricket genomes for the advancement of entomology and entomophagy

et al. 2022

View full text Add to dashboard Cite

Significant advances in biophysical methods such as next-generation sequencing technologies have now opened the way to conduct evolutionary and applied research based on the genomic information of greatly diverse insects. Crickets belonging to Orthoptera (Insecta: Polyneoptera), one of the most flourishing groups of insects, have contributed to the development of multiple scientific fields including developmental biology and neuroscience and have been attractive targets in evolutionary ecology for their diverse ecological niches. In addition, crickets have recently gained recognition as food and feed. However, the genomic information underlying their biological basis and application research toward breeding is currently underrepresented. In this review, we summarize the progress of genomics of crickets. First, we outline the phylogenetic position of crickets in insects and then introduce recent studies on cricket genomics and transcriptomics in a variety of fields. Furthermore, we present findings from our analysis of polyneopteran genomes, with a particular focus on their large genome sizes, chromosome number, and repetitive sequences. Finally, how the cricket genome can be beneficial to the food industry is discussed. This review is expected to enhance greater recognition of how important the cricket genomes are to the multiple biological fields and how basic research based on cricket genome information can contribute to tackling global food security.

show abstract

Section: Evolutionary Biologymentioning

confidence: 99%

Dissecting cricket genomes for the advancement of entomology and entomophagy

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Although the visual signals have been shown to be a strong sexual signal for female choice, auditory cues are important as well (Jacobs et al, 2016; Kaiser et al, 2018). Ultimately, the strength of behavioural isolation is likely governed by the extent of linkage disequilibrium of multiple, polygenic traits and preferences, their position in the genome and the gene expression of pleiotropic traits (Blankers et al, 2019). This provides an exciting avenue for future research in this system.…”

Section: Discussionmentioning

confidence: 99%

Sexual signal evolution and patterns of assortative mating across an intraspecific contact zone

Pascal,

Vega,

Akopyan

et al. 2023

Journal of Evolutionary Biology

View full text Add to dashboard Cite

Contact zones provide important insights into the evolutionary processes that underlie lineage divergence and speciation. Here, we use a contact zone to ascertain speciation potential in the red‐eyed treefrog (Agalychnis callidryas), a brightly coloured and polymorphic frog that exhibits unusually high levels of intraspecific variation. Populations of A. callidryas differ in a number of traits, several of which are known sexual signals that mediate premating reproductive isolation in allopatric populations. Along the Caribbean coast of Costa Rica, a ~100 km contact zone, situated between two phenotypically and genetically divergent parent populations, contains multiple colour pattern phenotypes and late‐generation hybrids. This contact zone provides the opportunity to examine processes that are important in the earliest stages of lineage divergence. We performed analyses of colour pattern variation in five contact zone sites and six parental sites and found complex, continuous colour variation along the contact zone. We found discordance between the geographic distribution of colour pattern and previously described genomic population structure. We then used a parental site and contact zone site to measure assortative mating and directional selection from naturally‐occurring amplectant mating pairs. We found assortative mating in a parental population, but no assortative mating in the contact zone. Furthermore, we uncovered evidence of directional preference towards the adjacent parental phenotype in the contact zone population, but no directional preference in the parent population. Combined, these data provide insights into potential dynamics at the contact zone borders and indicate that incipient speciation between parent populations will be slowed.

show abstract

“…To circumvent this issue, researchers have recently begun to identify a subset of markers to create a high-quality map using few enough markers to match the number of recombinations in the mapping panel. Onto these base maps are layered as many additional markers as possible, either by grouping markers into “0-recombinant clusters” as in (Li et al 2015 ) or by using a regression algorithm to layer additional markers onto the map as in (Blankers et al 2019 ). Here we use a simple genotype matching algorithm that identifies groups of identical or near-identical markers with which to associate each additional marker.…”

Section: Discussionmentioning

confidence: 99%

A high-density genetic map and molecular sex-typing assay for gerbils

et al. 2019

View full text Add to dashboard Cite

We constructed a high-density genetic map for Mongolian gerbils ( Meriones unguiculatus ). We genotyped 137 F2 individuals with a genotype-by-sequencing (GBS) approach at over 10,000 loci and built the genetic map using a two-step approach. First, we chose the highest-quality set of 485 markers to construct a robust map of 1239 cM with 22 linkage groups as expected from the published karyotype. Second, we added an additional 5449 markers onto the map based on their genotype similarity with the original markers. We used the final marker set to assemble 1140 genomic scaffolds (containing ~ 20% of annotated genes) into a chromosome-level assembly. We used both genetic linkage and relative sequencing coverage in males and females to identify X- and Y-chromosome scaffolds and from these we designed a robust and internally-controlled PCR assay to determine sex. This assay will facilitate early stage sex-typing of embryonic and young gerbils which is difficult using current visual methods. Accession ID: Meriones unguiculatus : 10047. Electronic supplementary material The online version of this article (10.1007/s00335-019-09799-z) contains supplementary material, which is available to authorized users.

show abstract

Physical linkage and mate preference generate linkage disequilibrium for behavioral isolation in two parapatric crickets

Cited by 9 publications

References 119 publications

Dissecting cricket genomes for the advancement of entomology and entomophagy

Dissecting cricket genomes for the advancement of entomology and entomophagy

Sexual signal evolution and patterns of assortative mating across an intraspecific contact zone

A high-density genetic map and molecular sex-typing assay for gerbils

Contact Info

Product

Resources

About