Drosophila curviceps Species-Group (Diptera: Drosophilidae) from India, with Description of a New Species and Redescription of a Known Species

Pradhan, S. G.; Sati, Pradeep C; Fartyal, Rajendra Singh; Chatterjee, R.; Sarswat, Manisha; Kandpal, Mukul C; Singh, B. K.

doi:10.1007/s12595-014-0121-8

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…Our analysis, based on a larger amount of sequence data than previous studies, confirms these observations, namely that (1) D. quadrilineata is not closely related either to the immigrans species group s.s. or to D. annulipes, (2) D. curviceps is not closely related to the immigrans species group s.s., and (3) D. annulipes is related to D. curviceps. Based on these results, we support the conclusions on other authors (Katoh et al, 2007;Pradhan et al, 2015;Yassin, 2013) that the definition of the immigrans species group should be . CC-BY 4.0 International license under a not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity.…”

Section: Supplemental Text -The Immigrans Species Groupsupporting

confidence: 91%

“…Yassin (Yassin, 2013) pointed out important differences between D. quadrilineata and the curviceps subgroup and the immigrans group s.s. Finally, Pradhan et al (Pradhan et al, 2015) removed the curviceps subgroup from the immigrans species group, elevating it to the status of a separate species group.…”

Section: Supplemental Text -The Immigrans Species Groupmentioning

confidence: 99%

“…Further work, with a more extensive sampling of the immigrans group s.s., is needed to revise its internal taxonomy and re-establish monophyletic subgroups. Similarly, better taxon sampling will be needed to determine whether D. annulipes could be reassigned to the curviceps species group (Pradhan et al, 2015), or whether it is possible to establish a monophyletic quadrilineata species group.…”

Section: Supplemental Text -The Immigrans Species Groupmentioning

confidence: 99%

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Evolution and development of male-specific leg brushes in Drosophilidae

et al. 2022

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Sexually dimorphic morphological traits are among the fastest evolving animal features. Similar sex-specific structures have sometimes evolved independently in multiple lineages, presumably as targets of parallel sexual selection. In such cases, comparing the cellular mechanisms that generate these structures in different species can elucidate the interplay between selection and developmental constraint in evolution. In Drosophilidae, malespecific tarsal brushes on the front legs are found in at least four separate lineages. In this study, we combine phylogenetic reconstruction with developmental analyses and behavioral observations to investigate the evolutionary origin of these structures. We show that the sex brush has evolved independently at least three times from sexually monomorphic ancestral morphology. However, all sex brushes have very similar fine structure and develop through indistinguishable cellular processes, providing a striking example of developmental convergence. In all examined species, males use their sex brushes to grasp the female abdomen prior to copulation. We discuss potential reasons why convergent evolution of novel structures is rare even in the face of similar functional demands.

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Section: Supplemental Text -The Immigrans Species Groupsupporting

confidence: 91%

Section: Supplemental Text -The Immigrans Species Groupmentioning

confidence: 99%

Section: Supplemental Text -The Immigrans Species Groupmentioning

confidence: 99%

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Evolution and development of male-specific leg brushes in Drosophilidae

et al. 2022

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“…This taxonomic situation is inconvenient: some members (the immigrans , nasuta and hypocausta subgroups) of the immigrans group belong to the subgenus Drosophila , but the others (the quadrilineata and curviceps subgroups) are incertae sedis for the subgenus. To partly solve this problem, Pradhan et al [ 47 ] have made the curviceps subgroup independent, as a species group, from the immigrans group, but left its subgeneric assignment undetermined, i.e., incertae sedis . Thus, more taxonomic revision is needed for the traditional immigrans group and its related taxa.…”

Section: Discussionmentioning

confidence: 99%

Phylogeography of the Subgenus Drosophila (Diptera: Drosophilidae): Evolutionary History of Faunal Divergence between the Old and the New Worlds

et al. 2016

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The current subgenus Drosophila (the traditional immigrans-tripunctata radiation) includes major elements of temperate drosophilid faunas in the northern hemisphere. Despite previous molecular phylogenetic analyses, the phylogeny of the subgenus Drosophila has not fully been resolved: the resulting trees have more or less varied in topology. One possible factor for such ambiguous results is taxon-sampling that has been biased towards New World species in previous studies. In this study, taxon sampling was balanced between Old and New World species, and phylogenetic relationships among 45 ingroup species selected from ten core species groups of the subgenus Drosophila were analyzed using nucleotide sequences of three nuclear and two mitochondrial genes. Based on the resulting phylogenetic tree, ancestral distributions and divergence times were estimated for each clade to test Throckmorton’s hypothesis that there was a primary, early-Oligocene disjunction of tropical faunas and a subsequent mid-Miocene disjunction of temperate faunas between the Old and the New Worlds that occurred in parallel in separate lineages of the Drosophilidae. Our results substantially support Throckmorton’s hypothesis of ancestral migrations via the Bering Land Bridge mainly from the Old to the New World, and subsequent vicariant divergence of descendants between the two Worlds occurred in parallel among different lineages of the subgenus Drosophila. However, our results also indicate that these events took place multiple times over a wider time range than Throckmorton proposed, from the late Oligocene to the Pliocene.

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