Hostplant change and paleoclimatic events explain diversification shifts in skipper butterflies (Family: Hesperiidae)

Sahoo, Ranjit Kumar; Warren, Andrew; Collins, Steve C.; Kodandaramaiah, Ullasa

doi:10.1186/s12862-017-1016-x

Cited by 57 publications

(73 citation statements)

References 96 publications

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“…For Hedylidae, only the study by Heikkilä et al (2012) had an estimate for the crown age, whose mean age was 45.3 Ma, which is older than our result (32.8, 95%CI=23.4–43.6). The age of Hesperiidae (65.2, 95%CI=55.8–78.1) was similar to Wahlberg et al (2013) and Heikkilä et al (2012), but much younger than Sahoo et al (2017) with an estimate of 82 Ma. Pieridae is the family that showed highest variation in age estimates among different studies.…”

Section: Resultsmentioning

confidence: 83%

The Trials and Tribulations of Priors and Posteriors in Bayesian Timing of Divergence Analyses: the Age of Butterflies Revisited

Chazot

Wahlberg

Freitas

et al. 2018

Preprint

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Section: Resultsmentioning

confidence: 83%

The Trials and Tribulations of Priors and Posteriors in Bayesian Timing of Divergence Analyses: the Age of Butterflies Revisited

Chazot

Wahlberg

Freitas

et al. 2018

Preprint

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“…Feeding on nutrient-deficient grasses, sedges and palms (34) leads to a prolonged caterpillar stage and may increase the likelihood of oxidative damage that would be mitigated by additional catalases. Apparently switching to monocot feeding was an evolutionarily successful innovation that resulted in explosive speciation in both satyrs and grass-skippers (35). They became the most species-rich phylogenetic groups among American butterflies, and their parallel diversifications of catalases are intriguing.…”

Section: Fig 1 Ultra-conserved Genomic Elements (Uce) In Butterfly mentioning

confidence: 99%

Genomics of a complete butterfly continent

Zhang

Cong

Shen

et al. 2019

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Never before have we had the luxury of choosing a continent, picking a large phylogenetic group of animals, and obtaining genomic data for its every species. Here, we sequence all 845 species of butterflies recorded from North America north of Mexico. Our comprehensive approach reveals the pattern of diversification and adaptation occurring in this phylogenetic lineage as it has spread over the continent, which cannot be seen on a sample of selected species. We observe bursts of diversification that generated taxonomic ranks: subfamily, tribe, subtribe, genus, and species. The older burst around 70 Mya resulted in the butterfly subfamilies, with the major evolutionary inventions being unique phenotypic traits shaped by high positive selection and gene duplications. The recent burst around 5 Mya is caused by explosive radiation in diverse butterfly groups associated with diversification in transcription and mRNA regulation, morphogenesis, and mate selection. Rapid radiation correlates with more frequent introgression of speciation-promoting and beneficial genes among radiating species. Radiation and extinction patterns over the last 100 million years suggest the following general model of animal evolution. A population spreads over the land, adapts to various conditions through mutations, and diversifies into several species. Occasional hybridization between these species results in accumulation of beneficial alleles in one, which eventually survives, while others become extinct. Not only butterflies, but also the hominids may have followed this path.Butterflies are among the most beloved animals , beautiful and harmless, they have attracted human attention since prehistoric times (1). Being one of the best-studied insects phenotypically (2), butterflies remain largely unexplored by genomics. Until recently, genomic studies of butterflies were confined to a couple of model organisms and pests, such as Heliconius, monarch, and cabbage white, with initial studies leading to groundbreaking insights into mimicry, migration, and toxin resistance (3-5). We have been expanding these efforts on butterfly genomics to cover a broader range of species (6-11). With the rapid decrease in the price of DNA sequencing and the constant development of analytical methods, the time is ripe to sequence the genomes of all butterfly species over a continent.

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“…A recent study on Hesperiidae butterflies reported a strong increase in diversification coincident with a switch from dicot-feeders to monocot-feeders (Sahoo, Warren, Collins, & Kodandaramaiah, 2017). As postulated for Hesperiidae, the emergence of open grasslands and global temperature decrease may have affected diversification in the Sclerotiniaceae.…”

Section: Discussionmentioning

confidence: 89%

Shifts in diversification rates and host jump frequencies shaped the diversity of host range amongSclerotiniaceaefungal plant pathogens

Navaud

Barbacci

Taylor

et al. 2017

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The range of hosts that a parasite can infect in nature is a trait determined by its own evolutionary history and that of its potential hosts. However, knowledge on host range diversity and evolution at the family level is often lacking. Here, we investigate host range variation and diversification trends within the Sclerotiniaceae, a family of Ascomycete fungi. Using a phylogenetic framework, we associate diversification rates, the frequency of host jump events and host range variation during the evolution of this family. Variations in diversification rate during the evolution of the Sclerotiniaceae define three major macro-evolutionary regimes with contrasted proportions of species infecting a broad range of hosts. Host-parasite cophylogenetic analyses pointed towards parasite radiation on distant hosts long after host speciation (host jump or duplication events) as the dominant mode of association with plants in the Sclerotiniaceae. The intermediate macro-evolutionary regime showed a low diversification rate, high frequency of duplication events and the highest proportion of broad host range species. Our findings suggest that the emergence of broad host range fungal pathogens results largely from host jumps, as previously reported for oomycete parasites, probably combined with low speciation rates. These results have important implications for our understanding of fungal parasites evolution and are of particular relevance for the durable management of disease epidemics.

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Hostplant change and paleoclimatic events explain diversification shifts in skipper butterflies (Family: Hesperiidae)

Cited by 57 publications

References 96 publications

The Trials and Tribulations of Priors and Posteriors in Bayesian Timing of Divergence Analyses: the Age of Butterflies Revisited

The Trials and Tribulations of Priors and Posteriors in Bayesian Timing of Divergence Analyses: the Age of Butterflies Revisited

Genomics of a complete butterfly continent

Shifts in diversification rates and host jump frequencies shaped the diversity of host range amongSclerotiniaceaefungal plant pathogens

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