ArticleGenetica2016
Hawaiian Drosophila genomes: size variation and evolutionary expansions.
Article in Genetica, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Recombination Suppression Drives Expansion of the Drosophila Dot Chromosome.Molecular biology and evolution · 2025Article
- Climate change and plant genomic plasticity.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Review
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- Long-read genome assemblies for the study of chromosome expansion: Drosophila kikkawai, Drosophila takahashii, Drosophila bipectinata, and Drosophila ananassae.G3 (Bethesda, Md.) · 2023Article
- Long-read genome assemblies for the study of chromosome expansion:bioRxiv : the preprint server for biology · 2023Article
- Article
- In-Depth Satellitome Analyses of 37 Drosophila Species Illuminate Repetitive DNA Evolution in the Drosophila Genus.Genome biology and evolution · 2022Article
- Chromosome Comparisons of AustralianInsects · 2022Article
- Phylotranscriptomics Reveals Discordance in the Phylogeny of Hawaiian Drosophila and Scaptomyza (Diptera: Drosophilidae).Molecular biology and evolution · 2022Article
- Genome Size Covaries More Positively with Propagule Size than Adult Size: New Insights into an Old Problem.Biology · 2021Article
- Structure, Organization, and Evolution of Satellite DNAs: Insights from the Drosophila repleta and D. virilis Species Groups.Progress in molecular and subcellular biology · 2021Article
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- Article
- TheGenetics · 2018Article
- Retrotransposons Are the Major Contributors to the Expansion of theG3 (Bethesda, Md.) · 2017Article
- Dissecting the Satellite DNA Landscape in Three CactophilicG3 (Bethesda, Md.) · 2017Article
- Profuse evolutionary diversification and speciation on volcanic islands: transposon instability and amplification bursts explain the genetic paradox.Biology direct · 2016Article
- Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This paper reports genome sizes of one Hawaiian Scaptomyza and 16 endemic Hawaiian Drosophila species that include five members of the antopocerus species group, one member of the modified mouthpart group, and ten members of the picture wing clade. Genome size expansions have occurred independently multiple times among Hawaiian Drosophila lineages, and have resulted in an over 2.3-fold range of genome sizes among species, with the largest observed in Drosophila cyrtoloma (1C = 0.41 pg). We find evidence that these repeated genome size expansions were likely driven by the addition of significant amounts of heterochromatin and satellite DNA. For example, our data reveal that the addition of seven heterochromatic chromosome arms to the ancestral haploid karyotype, and a remarkable proportion of ~70 % satellite DNA, account for the greatly expanded size of the D. cyrtoloma genome. Moreover, the genomes of 13/17 Hawaiian picture wing species are composed of substantial proportions (22-70 %) of detectable satellites (all but one of which are AT-rich). Our results suggest that in this tightly knit group of recently evolved species, genomes have expanded, in large part, via evolutionary amplifications of satellite DNA sequences in centric and pericentric domains (especially of the X and dot chromosomes), which have resulted in longer acrocentric chromosomes or metacentrics with an added heterochromatic chromosome arm. We discuss possible evolutionary mechanisms that may have shaped these patterns, including rapid fixation of novel expanded genomes during founder-effect speciation.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.