Rapid adaptive radiation and host plant conservation in the Hawaiian picture wing Drosophila (Diptera: Drosophilidae)

Magnacca, Karl N.; Price, Daniel O.

doi:10.1016/j.ympev.2015.06.014

Cited by 44 publications

(82 citation statements)

References 55 publications

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“…Thus, we might expect that ecological shifts create opportunities for late colonists to escape the impact of priority effects as a result of exploring new niche dimensions. Highly dynamic adaptive radiations that appear to violate the progression rule via back migration, such as some branches of the Hawaiian picture-winged Drosophila radiation (30), provide an opportunity to test this idea. Perhaps herein lies the explanation for the finding that adaptive radiations in the Galapagos were not found to adhere to the progression rule (59).…”

Section: Discussionmentioning

confidence: 99%

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Comparative phylogeography of oceanic archipelagos: Hotspots for inferences of evolutionary process

Shaw

Gillespie

2016

Proc. Natl. Acad. Sci. U.S.A.

136

151

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Remote island archipelagos offer superb opportunities to study the evolution of community assembly because of their relatively young and simple communities where speciation contributes to the origin and evolution of community structure. There is great potential for common phylogeographic patterns among remote archipelagos that originate through hotspot volcanism, particularly when the islands formed are spatially isolated and linearly arranged. The progression rule is characterized by a phylogeographic concordance between island age and lineage age in a species radiation. Progression is most likely to arise when a species radiation begins on an older island before the emergence of younger islands of a hotspot archipelago. In the simplest form of progression, colonization of younger islands as they emerge and offer appropriate habitat, is coincident with cladogenesis. In this paper, we review recent discoveries of the progression rule on seven hotspot archipelagos. We then discuss advantages that progression offers to the study of community assembly, and insights that community dynamics may offer toward understanding the evolution of progression. We describe results from two compelling cases of progression where the mosaic genome may offer insights into contrasting demographic histories that shed light on mechanisms of speciation and progression on remote archipelagos.progression rule | speciation | priority effect | community assembly | radiation zone

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Section: Discussionmentioning

confidence: 99%

“…1A). Funk and Wagner (29) discuss this pattern with reference to Hawaiian endemics, where it is rare for taxa to conform exactly to this simple manifestation of the progression rule, although some taxa do illustrate the progression perfectly (30).…”

Section: The Progression Rule In Comparative Island Phylogeographymentioning

confidence: 99%

Comparative phylogeography of oceanic archipelagos: Hotspots for inferences of evolutionary process

Shaw

Gillespie

2016

Proc. Natl. Acad. Sci. U.S.A.

136

151

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“…The subgroup is known for selecting leks in more open spaces as opposed to other subgroups that prefer a hidden location. Current phylogenetic analyses show that D. planitibia shares a close ancestor with both D. silvestris and D. heteroneura as the latter two species were established on Hawai'i Island (Magnacca and Price, 2015).…”

Section: Introductionmentioning

confidence: 97%

“…Here we analyze the differential gene expression and allelespecific expression (ASE) of testis-level fertility in BC males between two closely related endemic Hawaiian Drosophila species in the picture-wing clade under planitibia group and IVβ subgroup, Drosophila planitibia and Drosophila silvestris (Spieth, 1986). D. silvestris is endemic to Hawai'i Island and D. planitibia is endemic to the island of Maui, and diverged ∼ 0.7 Mya (O'Grady et al, 2011;Magnacca and Price, 2015). Both species are bark breeders, whereby females oviposit eggs on and larvae develop in the decaying bark of the endemic Hawaiian flowering plant, Clermontia spp.…”

Section: Introductionmentioning

confidence: 99%

Hybrid sterility and evolution in Hawaiian Drosophila: differential gene and allele-specific expression analysis of backcross males

et al. 2016

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The Hawaiian Drosophila are an iconic example of sequential colonization, adaptive radiation and speciation on islands. Genetic and phenotypic analysis of closely related species pairs that exhibit incomplete reproductive isolation can provide insights into the mechanisms of speciation. Drosophila silvestris from Hawai'i Island and Drosophila planitibia from Maui are two closely related allopatric Hawaiian picture-winged Drosophila that produce sterile F 1 males but fertile F 1 females, a pattern consistent with Haldane's rule. Backcrossing F 1 hybrid females between these two species to parental species gives rise to recombinant males with three distinct sperm phenotypes despite a similar genomic background: motile sperm, no sperm (sterile), and immotile sperm. We found that these three reproductive morphologies of backcross hybrid males produce divergent gene expression profiles in testes, as measured with RNA sequencing. There were a total of 71 genes significantly differentially expressed between backcross males with no sperm compared with those backcross males with motile sperm and immotile sperm, but no significant differential gene expression between backcross males with motile sperm and backcross males with immotile sperm. All of these genes were underexpressed in males with no sperm, including a number of genes with previously known activities in adult testis. An allele-specific expression analysis showed overwhelmingly more cis-divergent than transdivergent genes, with no significant difference in the ratio of cis-and trans-divergent genes among the sperm phenotypes. Overall, the results indicate that the regulation of gene expression involved in sperm production likely diverged relatively rapidly between these two closely related species.

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“…Speciation in the Hawaiian picture-winged Drosophila involved allopatric speciation following the "progression rule" that occurred when a new species was founded on each new island as it emerged from the volcanic hotspot in the middle of the Pacific plate [Carson and Clague, 1995]. Sympatric species divergence within islands also appears to have occurred, in part due to switching host-plant associations [Magnacca and Price, 2015]. More recently, many of the Hawaiian picture-wing Drosophila have declined in numbers with 11 species now classified as endangered, including D. differens and D. heteroneura .…”

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confidence: 99%

Mapping Genomic Scaffolds to Chromosomes Using Laser Capture Microdissection in Application to Hawaiian Picture-Winged Drosophila

Kang

George²,

Price³

et al. 2017

Cytogenet Genome Res

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successfully assigned to chromosome arms. Even though the scaffolds are not ordered within a chromosome, the fastgenerated chromosome information allows for chromosome-related analyses after genome assembling. We utilize this new information to test the faster-X evolution effect for the first time in these Hawaiian picture-winged Drosophila species. © 2017 S. Karger AG, Basel Along with the rapid development of massively parallel sequencing, or next-generation sequencing (NGS), DNA sequencing capabilities grow exponentially. This allows researchers to perform de novo genome assemblies for thousands of species, from viruses and insects to mammals (e.g., Genome 10K, i5K [Genome 10K Community of Scientists, 2009; i5K Consortium, 2013]). However, the complexity of the assembly task using short reads still poses a major challenge. Genome assemblies are hierarchical, and a typical de novo assembly process, especially for large eukaryotic genomes, often ends at the level of scaffolds, assembled from shorter as- KeywordsChromosome mapping · Hawaiian Drosophila · Laser capture · Microdissection Abstract Next-generation sequencing technologies have led to a decreased cost and an increased throughput in genome sequencing. Yet, many genome assemblies based on short sequencing reads have been assembled only to the scaffold level due to the lack of sufficient chromosome mapping information. Traditional ways of mapping scaffolds to chromosomes require a large amount of laboratory work and time to generate genetic and/or physical maps. To address this problem, we conducted a rapid technique which uses laser capture microdissection and enables mapping scaffolds of de novo genome assemblies directly to chromosomes in Hawaiian picture-winged Drosophila . We isolated and sequenced intact chromosome arms from larvae of D. differens. By mapping the reads of each chromosome to the recently assembled scaffolds from 3 Hawaiian picturewinged Drosophila species, at least 67% of the scaffolds were

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Rapid adaptive radiation and host plant conservation in the Hawaiian picture wing Drosophila (Diptera: Drosophilidae)

Cited by 44 publications

References 55 publications

Comparative phylogeography of oceanic archipelagos: Hotspots for inferences of evolutionary process

Comparative phylogeography of oceanic archipelagos: Hotspots for inferences of evolutionary process

Hybrid sterility and evolution in Hawaiian Drosophila: differential gene and allele-specific expression analysis of backcross males

Mapping Genomic Scaffolds to Chromosomes Using Laser Capture Microdissection in Application to Hawaiian Picture-Winged Drosophila

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