Search
Results: 8885
Eukaryote hybrid genomes.
Interspecific hybridization is the process where closely related species mate and produce offspring with admixed genomes. The genomic revolution has shown that hybridization is common, and that it may represent an important...
Eukaryote hybrid genomes.
Interspecific hybridization is the process where closely related species mate and produce offspring with admixed genomes. The genomic revolution has shown that hybridization is common, and that it may represent an important...
A Combinatorial View on Speciation and Adaptive Radiation.
Speciation is often thought of as a slow process due to the waiting times for mutations that cause incompatibilities, and permit ecological differentiation or assortative mating. Cases of rapid speciation and particularly cases...
Rapid generation of ecologically relevant behavioral novelty in experimental cichlid hybrids.
Anna F Feller, Oliver M Selz, Matthew D McGee, Joana I Meier, Salome Mwaiko, Ole Seehausen
Oct 28, 2020
The East African cichlid radiations are characterized by repeated and rapid diversification into many distinct species with different ecological specializations and by a history of hybridization events between nonsister species....
Genomics of Rapid Incipient Speciation in Sympatric Threespine Stickleback.
David A Marques, Kay Lucek, Joana I Meier, Salome Mwaiko, Catherine E Wagner, Laurent Excoffier, Ole Seehausen
Dec 11, 2019
Ecological speciation is the process by which reproductively isolated populations emerge as a consequence of divergent natural or ecologically-mediated sexual selection. Most genomic studies of ecological speciation have...
A Dense Linkage Map of Lake Victoria Cichlids Improved the Pundamilia Genome Assembly and Revealed a Major QTL for Sex-Determination.
Genetic linkage maps are essential for comparative genomics, high quality genome sequence assembly and fine scale quantitative trait locus (QTL) mapping. In the present study we identified and genotyped markers via...
Cichlidae Genetics of Sex RAD XY system amh recombination rate sex chromosome evolution sex determination Synteny Animals Chromosome Mapping Cichlids Databases Genetic evolution Molecular Genetic Linkage Genetic Markers Genomics Genotype High-Throughput Nucleotide Sequencing lakes Quantitative Trait Loci Recombination Genetic Sex Determination Processes Synteny
Multispecies colour polymorphisms associated with contrasting microhabitats in two Mediterranean wrasse radiations.
Sarya N Fark, Steve Gerber, Suzanne H Alonzo, Holly K Kindsvater, Joana I Meier, Ole Seehausen
Mar 19, 2022
Intraspecific colour polymorphisms (CPs) present unique opportunities to study fundamental evolutionary questions, such as the link between ecology and phenotype, mechanisms maintaining genetic diversity and their putative role...
Haplotype tagging reveals parallel formation of hybrid races in two butterfly species.
Joana I Meier, Patricio A Salazar, Marek Kučka, Robert William Davies, Andreea Dréau, Ismael Aldás, Olivia Box Power, Nicola J Nadeau, Jon R Bridle, Campbell Rolian, Nicholas H Barton, W Owen McMillan, Chris D Jiggins, Yingguang Frank Chan
Jul 28, 2021
Genetic variation segregates as linked sets of variants or haplotypes. Haplotypes and linkage are central to genetics and underpin virtually all genetic and selection analysis. Yet, genomic data often omit haplotype information...
Ancient hybridization fuels rapid cichlid fish adaptive radiations.
Joana I Meier, David A Marques, Salome Mwaiko, Catherine E Wagner, Laurent Excoffier, Ole Seehausen
Nov 27, 2019
Understanding why some evolutionary lineages generate exceptionally high species diversity is an important goal in evolutionary biology. Haplochromine cichlid fishes of Africa's Lake Victoria region encompass >700 diverse...
The coincidence of ecological opportunity with hybridization explains rapid adaptive radiation in Lake Mweru cichlid fishes.
Joana I Meier, Rike B Stelkens, Domino A Joyce, Salome Mwaiko, Numel Phiri, Ulrich K Schliewen, Oliver M Selz, Catherine E Wagner, Cyprian Katongo, Ole Seehausen
Dec 11, 2019
The process of adaptive radiation was classically hypothesized to require isolation of a lineage from its source (no gene flow) and from related species (no competition). Alternatively, hybridization between species may generate...
Demographic modelling with whole-genome data reveals parallel origin of similar Pundamilia cichlid species after hybridization.
Joana I Meier, Vitor C Sousa, David A Marques, Oliver M Selz, Catherine E Wagner, Laurent Excoffier, Ole Seehausen
Nov 27, 2019
Modes and mechanisms of speciation are best studied in young species pairs. In older taxa, it is increasingly difficult to distinguish what happened during speciation from what happened after speciation. Lake Victoria cichlids...
Movement of transposable elements contributes to cichlid diversity.
Karen L Carleton, Matthew A Conte, Milan Malinsky, Sri Pratima Nandamuri, Benjamin A Sandkam, Joana I Meier, Salome Mwaiko, Ole Seehausen, Thomas D Kocher
Nov 09, 2020
African cichlid fishes are a prime model for studying speciation mechanisms. Despite the development of extensive genomic resources, it has been difficult to determine which sources of genetic variation are responsible for...
Altitude and life-history shape the evolution of Heliconius wings.
Gabriela Montejo-Kovacevich, Jennifer E Smith, Joana I Meier, Caroline N Bacquet, Eva Whiltshire-Romero, Nicola J Nadeau, Chris D Jiggins
Nov 04, 2019
Phenotypic divergence between closely related species has long interested biologists. Taxa that inhabit a range of environments and have diverse natural histories can help understand how selection drives phenotypic divergence....
The coincidence of ecological opportunity with hybridization explains rapid adaptive radiation in Lake Mweru cichlid fishes
Joana I. Meier, Rike B. Stelkens, Domino A. Joyce, Salome Mwaiko, Numel Phiri, Ulrich K. Schliewen, Oliver M. Selz, Catherine E. Wagner, Cyprian Katongo, Ole Seehausen
Dec 02, 2020
Abstract: The process of adaptive radiation was classically hypothesized to require isolation of a lineage from its source (no gene flow) and from related species (no competition). Alternatively, hybridization between species...
Genomics of altitude-associated wing shape in two tropical butterflies.
Gabriela Montejo-Kovacevich, Patricio A Salazar, Sophie H Smith, Kimberly Gavilanes, Caroline N Bacquet, Yingguang Frank Chan, Chris D Jiggins, Joana I Meier, Nicola J Nadeau
Jul 28, 2021
Understanding how organisms adapt to their local environment is central to evolution. With new whole-genome sequencing technologies and the explosion of data, deciphering the genomic basis of complex traits that are ecologically...
Genomics of Parallel Ecological Speciation in Lake Victoria Cichlids.
Joana Isabel Meier, David Alexander Marques, Catherine Elise Wagner, Laurent Excoffier, Ole Seehausen
Nov 27, 2019
The genetic basis of parallel evolution of similar species is of great interest in evolutionary biology. In the adaptive radiation of Lake Victoria cichlid fishes, sister species with either blue or red-back male nuptial...
A haplotype-resolved, de novo genome assembly for the wood tiger moth (Arctia plantaginis) through trio binning.
Eugenie C Yen, Shane A McCarthy, Juan A Galarza, Tomas N Generalovic, Sarah Pelan, Petr Nguyen, Joana I Meier, Ian A Warren, Johanna Mappes, Richard Durbin, Chris D Jiggins
Jul 28, 2020
BACKGROUND: Diploid genome assembly is typically impeded by heterozygosity because it introduces errors when haplotypes are collapsed into a consensus sequence. Trio binning offers an innovative solution that exploits...
Nearest Neighbor Decoding and Pilot-AidedChannel Estimation for Fading Channels
We study the information rates of noncoherent, stationary, Gaussian, and multiple-input multiple-output (MIMO) flat-fading channels that are achievable with nearest neighbor decoding and pilot-aided channel estimation. In...
Haplotype tagging reveals parallel formation of hybrid races in two butterfly species.
Joana I Meier, Patricio A Salazar, Marek Kučka, Robert William Davies, Andreea Dréau, Ismael Aldás, Olivia Box Power, Nicola J Nadeau, Jon R Bridle, Campbell Rolian, Nicholas H Barton, W Owen McMillan, Chris D Jiggins, Yingguang Frank Chan
Jul 02, 2021
Genetic variation segregates as linked sets of variants or haplotypes. Haplotypes and linkage are central to genetics and underpin virtually all genetic and selection analysis. Yet, genomic data often omit haplotype information...
Repeated genetic adaptation to altitude in two tropical butterflies
Naturalism<i>in extremis</i>
Claire White
Oct 08, 2015
Adaptive Introgression across Semipermeable Species Boundaries between Local Helicoverpa zea and Invasive Helicoverpa armigera Moths.
Wendy A Valencia-Montoya, Samia Elfekih, Henry L North, Joana I Meier, Ian A Warren, Wee Tek Tay, Karl HJ Gordon, Alexandre Specht, Silvana V Paula-Moraes, Rahul Rane, Tom K Walsh, Chris D Jiggins
Jul 29, 2020
Hybridization between invasive and native species has raised global concern, given the dramatic increase in species range shifts and pest outbreaks due to anthropogenic dispersal. Nevertheless, secondary contact between sister...
Repeated genetic adaptation to altitude in two tropical butterflies.
Nearest Neighbor Decoding and Pilot-AidedChannel Estimation for Fading Channels
We study the information rates of noncoherent, stationary, Gaussian, and multiple-input multiple-output (MIMO) flat-fading channels that are achievable with nearest neighbor decoding and pilot-aided channel estimation. In...
|
|< |
< |
1 |