Prashant P. Sharma
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  • Research
    • Phylogenomics >
      • Chelicerate phylogenomics
      • Scorpion phylogenomics
      • Sea spider phylogenomics
    • Evo-devo >
      • Harvestman Hox genes
      • Scorpion Hox genes
      • Evolution of the chelicera
      • RNAi in Phalangium opilio
      • Deutocerebral appendages
    • Genomics
    • Biodiversity discovery
    • Older (archived) projects >
      • Systematics >
        • Arthropod systematics >
          • Cyphophthalmi
          • Zalmoxidae
          • Basal Opiliones phylogeny
        • Laniatores
        • Bivalve systematics >
          • Basal bivalve phylogeny
          • Protobranch phylogeny
      • Biogeography >
        • Sandokanidae
        • Zalmoxoidea
        • Simulations and theory
  • Personnel
    • Join the lab
    • Jesús A. Ballesteros Chávez
    • Caitlin M. Baker
    • Guilherme Gainett
    • Andrew Z. Ontano
    • Emily V.W. Setton
  • Lab Photos
  • Publications
  • Fieldwork
    • Australia 2014
    • Philippines 2014
    • Laos 2014
    • Australia 2015
    • Colorado 2018
  • Protocols
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Selected publications
(at UW-Madison)
Underlined authors are Sharma group members or affiliates.
For complete bibliography, please download CVs on the personnel pages.


In the works 

98. Gainett, G., González, V.L., Ballesteros, J.A., Setton, E.V.W., Baker, C.M., Barolo Gargiulo, L., Santibáñez-López, C.E., Coddington, J.A., Sharma, P.P. (in review) The genome of a daddy-long-legs (Opiliones) illuminates the evolution of arachnid appendages and chelicerate genome architecture. (preprint: https://doi.org/10.1101/2021.01.11.426205)

97. Ontano, A.Z., Gainett, G., Aharon, S., Ballesteros, J.A., Benavides, L.R., Corbett, K.F., Gavish-Regev, E., Harvey, M.S., Monsma, S., Santibáñez-López, C.E., Setton, E.V.W., Zehms, J.T., Zeh, J.A., Zeh, D.W., Sharma, P.P. (in revision) Taxonomic sampling and rare genomic changes overcome long-branch attraction in the phylogenetic placement of pseudoscorpions.

96. Santibáñez-López, C.E., Aharon, S., Ballesteros, J.A., Gainett, G., Baker, C.M., González-Santillán, E., Harvey, M.S., Hassan, M.K., Abu-Almaaty, A.H., Aldeyarbi, S.M., Monod, L., Ojanguren-Affilastro, A., Raven, R.J., Pinto-da-Roca, R., Zvik, Y., Gavish-Revev, E., Sharma, P.P. (in review) Phylogenomics of scorpions reveal contemporaneous diversification of scorpion mammalian predators and mammal-specific sodium channel toxins.

95. Setton, E.V.W., Sharma, P.P. (in revision) A conserved role for arrow in posterior axis patterning across Arthropoda. 

94. Baudouin-González, L., Schoenaeur, A., Harper, A., Blakely, G., Seiter, M., Arif, S., Summer-Rooney, L., Russel, S., Sharma, P.P., McGregor, A.P. (in revision) 
The evolution of Sox gene repertoires and regulation of segmentation in arachnids. (preprint: https://doi.org/10.1101/2020.06.04.133389)

Peer reviewed


93. Giribet, G., Baker, C.M., Sharma, P.P. (2021) A revised phylogeny of the New Caledonian endemic genus Troglosiro (Opiliones : Cyphophthalmi : Troglosironidae) with the description of four new species. Invertebrate Systematics 35:59-89. [PDF]

92. Bartel, C., Dunlop, J.A., Sharma, P.P., Selden, P.A., Ren, D., Shi C. (2021) Laniatorid harvestmen (Arachnida) from Late Cretaceous Burmese amber. Cretaceous Research 119:104703. [PDF]

91. Dehnert, G.K., Freitas, M., Sharma, P.P., Barry, T., Karasov, W.H. (2021) Impacts of sub-chronic exposure to a commercial 2,4-D herbicide on developmental stages of multiple freshwater fish species. Chemosphere 263:127638. [PDF]

90. *Gainett, G., *Ballesteros, J.A., Kanzler, C.R., ^Zehms, J.T., ^Zern, J.M., Aharon, S., Gavish-Regev, E., Sharma, P.P. (2020) Systemic paralogy and function of retinal determination network homologs in arachnids. (*Equal author contribution) BMC Genomics 21:811. [PDF] (^undergraduate co-author)

89. Gainett, G., Willemart, R.H., Giribet, G., Sharma, P.P. (2020) Convergent evolution of sexually dimorphic glands in an amphi-Pacific harvestman family. Invertebrate Systematics 34:871-892. [PDF]

88. Brenneis, G., Arango, C.P., Sharma, P.P., Schwentner, M. (2020) The more the merrier: Unparalleled sympatric species richness in a sea spider genus (Pycnogonida: Callipallenidae: Meridionale) from Tasmanian waters. Invertebrate Systematics
34:837-870. [PDF]

87. *Ballesteros, J.A., *Setton, E.V.W., *Santibáñez-López, C.E., Arango, C.P., Brenneis, G., Brix, S., Cano-Sánchez, E., ^Corbett, K.F., ^Dandouch, M., Dilly, G.F., Eleaume, M., Gainett, G., Gallut, C., ^McAtee, S., ^McIntyre, L., Moran, A.L., ^Moran, R., López-González, P.J., Scholtz, G., ^Williamson, C., Woods, H.A., ^Zehms, J.T., Wheeler, W.C., Sharma, P.P.​ (2020) Phylogenomic resolution of sea spider diversification through integration of multiple data classes. Molecular Biology and Evolution (doi: https://academic.oup.com/mbe/advance-article/doi/10.1093/molbev/msaa228/5904272) (*Equal author contribution) (^undergraduate co-author) [Advance PDF] [Featured in Science]

86. Gainett, G., Sharma, P.P. (2020) New genomic resources and toolkits for developmental study of whip spiders (Amblypygi) provide insights into arachnid genome evolution and antenniform leg patterning. EvoDevo 11:18. [PDF]

85. *Schmidt, S.M., Clouse, R.M., Sharma, P.P. (2020) A new Miopsalis from Mindanao supports a biogeographic umbilicus between Borneo and the southern Philippines (Arachnida: Opiliones: Cyphophthalmi: Stylocellidae). Zootaxa 4779:379-390. [PDF] (*undergraduate co-author)

84. Cano-Sánchez, E., Sharma, P.P., López-González, P.J. (2020) Postembryonic development of Nymphon australe Hodgson, 1902 (Pycnogonida, Nymphonidae) from Antarctica. Polar Biology 43:207-223. [PDF]

83. Santibanez-López, C.E., Ojanguren-Affilastro, A.A., Sharma, P.P. (2020) Another one bites the dust: taxonomic sampling of a key genus in phylogenomic datasets reveals more non-monophyletic groups in traditional scorpion classification. Invertebrate Systematics 34:133-143. [PDF]

82. Nolan, E.D., Santibáñez-López, C.E., Sharma, P.P. (2020) Developmental gene expression as a phylogenetic data class: Support for the monophyly of Arachnopulmonata. Development Genes and Evolution 230:137-153. [PDF] [Featured on the journal cover]

81.*Ballesteros, J.A., *Santibáñez-López, C.E, Kováč, L', Gavish-Regev, E., Sharma, P.P. (2019) Ordered phylogenomic subsampling enables diagnosis of systematic errors in the placement of the enigmatic arachnid order Palpigradi. Proceedings of the Royal Society of London B: Biological Sciences​ 286:20192426. [PDF] (*Equal author contribution)

80. Santibáñez-López, C.E, Graham, M.R., Sharma, P.P., Ortiz, E., Possani, L. (2019) Comparative transcriptomic analysis reveals evolutionary conservation and selective pressures in hadrurid scorpion toxins. Toxins 11:637. [PDF] [Featured on the journal cover]

79. Aharon, S., Ballesteros, J.A., *Crawford, A.C., *Friske, K., Guilherme, G., Langford, B., Santibáñez-López, C.E., Ya'aran, S., Gavish-Regev, E. & Sharma, P.P. (2019) The anatomy of an unstable node: A Levantine relict precipitates phylogenomic dissolution of higher-level relationships of the armored harvestmen (Arachnida: Opiliones: Laniatores). Invertebrate Systematics 33:697-717. [PDF] (*undergraduate co-author) [​Featured on the journal cover]

78. Santibáñez-López, C.E., González-Santillán, E., Monod, L., Sharma, P.P. (2019) Phylogenomics facilitates stable scorpion systematics: Reassessing the relationships of Vaejovidae and a new high-level classification of Scorpiones (Arachnida). Molecular Phylogenetics and Evolution 135:22-30. [PDF]

77. Setton, E.V.W., Hendrixson, B.E. & Sharma, P.P. (2019) Embryogenesis in a Colorado population of Aphonopelma hentzi (Girard, 1852), a promising system for the study of development (Araneae, Mygalomorphae, Theraphosidae). Journal of Arachnology 47:209-216. [PDF] [Featured on the journal cover]

76. Gainett, G., Sharma, P.P., Fernandes, N., Pinto-da-Rocha, R., Giribet, G. & Willemart, R.H. (2019) Evolution of a sensory cluster on the legs of Opiliones (Arachnida) informs multi-level phylogenetic relationships. Zoological Journal of the Linnean Society 187:143-165. [PDF]

75. Ballesteros, J.A. & Sharma, P.P. (2019) A critical appraisal of the placement of Xiphosura (Chelicerata) with account of known sources of phylogenetic error. ​Systematic Biology 68:896-917. [PDF] [Featured on the journal cover]

74. Sharma, P.P. (2019) Integrating morphology and phylogenomics supports a terrestrial origin of insect flight. Proceedings of the National Academy of Sciences of the USA 116:2796-2798. [PDF]

73. *Schmidt, S.M., Buenavente, P.A.C., Blatchley, D.D., Diesmos, A.C., Diesmos, M.L., General, D.E.M., Mohagan, A.B., Mohagan, D.J., Clouse, R.M. & Sharma, P.P. (2019)  A new species of Tithaeidae (Arachnida: Opiliones: Laniatores) from Mindanao reveals contemporaneous colonization of the Philippines by Sunda Shelf opiliofauna. ​Invertebrate Systematics 33:237-251. [PDF]

72. *March, L.E., *Smaby, R.M., *Setton, E.V.W. & Sharma, P.P. (2018) The evolution of selector gene function: Expression dynamics and regulatory interactions of tiptop/teashirt across Arthropoda. ​Evolution & Development 20:219-232. [PDF] (*undergraduate co-author)

71. Santibañez López, C.E., Kriebel, R., Ballesteros, J.A., Rush, N., Witter, Z., Williams, J., Janies, D.A. & Sharma, P.P. (2018) Integration of phylogenomics and molecular modeling reveals lineage-specific diversification of toxins in scorpions. PeerJ 5902:1-13. [PDF]

70. Zhang, C., Zhang F. & Sharma, P.P. (2018) Two new species of Petrobunus Sharma & Giribet, 2011 from China (Opiliones: Laniatores: Petrobunidae). Zootaxa 4524:51-64. [PDF]

69. Leite, D.J., Baudouin-Gonzalez, L., Iwasaki-Yokozawa, S., Lozano-Fernandez, J., Turetzek, N., Akiyama-Oda, Y., Pisani, D., Oda, H., Sharma, P.P. & McGregor, A.P. (2018) Homeobox gene duplication and divergence in arachnids. ​Molecular Biology and Evolution 35:2240-2253. [PDF]

68. Sharma, P.P. (2018) Chelicerates. Current Biology 28:R774-778. [PDF]

67. Oberski, J.T., Sharma, P.P., Jay, K.R., Coblens, M., Lemon, K.A., Johnson, J.E. & Boyer, S.L. (2018) A dated molecular phylogeny of mite harvestmen (Arachnida: Opiliones: Cyphophthalmi) elucidates ancient diversification dynamics in the Australian Wet Tropics. Molecular Phylogenetics and Evolution 127:813-822. [PDF]. 

66. Gainett, G., Sharma, P.P., Giribet, G., Willemart, R.H. (2018) The sensory equipment of a sandokanid: an extreme case of tarsal reduction in a harvestman (Arachnida, Opiliones). Journal of Morphology ​(doi: 10.1002/jmor.20843). [PDF]

65. Di, Z., Edgecombe, G.D., Sharma, P.P. (2018) Homeosis in a scorpion supports a telopodal origin of pectines and book lungs. BMC Evolutionary Biology 18:73. [PDF]

64. Santibáñez-López, C.E., Ontano, A.Z., Harvey, M.S., & Sharma, P.P. (2018) Transcriptomic analysis of pseudoscorpion venom reveals a unique cocktail dominated by enzymes and protease inhibitors. ​Toxins 10:207. [PDF]

63. *Setton, E.V.W., Sharma, P.P. (2018) Cooption of an appendage patterning gene cassette in the head segmentation of arachnids. Proceedings of the National Academy of Sciences of the USA 115:E3491-E3500. [PDF] (*undergraduate co-author)

62. Gainett, G., Sharma, P.P., Giribet, G., Willemart, R.H. (2018) Putative adhesive setae on the walking legs of the Paleotropical harvestman Metibalonius​ sp. (Arachnida: Opiliones: Podoctidae). Journal of Arachnology 46:62-68. [PDF]

61. Sharma, P.P., Baker, C.M., Cosgrove, J.G., Johnson, J.E., Oberski, J.T., Raven, R.J., Harvey, M.S., Boyer, S.L. & Giribet, G. (2018) A revised dated phylogeny of scorpions: Phylogenomic support for ancient divergence of the temperate Gondwanan family Bothriuridae. 
Molecular Phylogenetics and Evolution 122:37-45. [PDF]
​
60. Garb, J.E., Sharma, P.P. & Ayoub, N.A. (2018) Recent progress and prospects for advancing arachnid genomics. Current Opinions in Insect Science 25:51-57. [PDF]

59. Lewis, S.H., Quarles, K.A., Yang, Y., Tanguy, M., Frézal, L., Smith, S., Sharma, P.P, Cordaux, R., Gilbert, C., Giraud, I., Collins, D.H., Zamore, P.D., Miska, E.A., Sarkies, P. & Jiggins, F.M. (2018) Pan-arthropod analysis reveals somatic piRNAs as an ancestral defence against transposable elements. Nature Ecology and Evolution​ 2:174-181. [PDF]

58. Daniels, S.R., Dreyer, M. & Sharma, P.P. (2017) Contrasting the population genetic structure of two velvet worm taxa (Onychophora: Peripatopsidae: Peripatopsis) in forest fragments along the south eastern Cape, South Africa. Invertebrate Systematics 31:781-796. [PDF]

57. Sharma, P.P. (2017) Chelicerates and the conquest of land: A view of arachnid origins through an evodevo spyglass. Integrative and Comparative Biology 57, 510-522. [PDF]

56. *Schwager, E.E., *Sharma, P.P., *Clarke, T., *Leite, D.J., Wierschin, T., Pechmann M., Akiyama-Oda, Y., Esposito, L., Arensburger, P., Bechsgaard, J., Bilde, T., Buffry, A., Chao, H., Dinh, H., Doddapaneni, H., Dugan, S., Eibner C., Extavour, C.G., Funch, P., Garb, J., Gonzalez, V.L., Griffiths-Jones, S., Han, Y., Hayashi, C., Hilbrant, M., Hughes, D.S.T., Janssen, R., Lee, S.L., Maeso, I., Murali, S.C., Muzny, D.M., da Fonseca, R.N., Qu, J., Ronshaugen, M., Schomburg, C., Schönauer, A., Stollewerk, A., Torres-Oliva, M., Turetzek, N., Vanthournout, B., Werren, J., Wolff, C., Worley, K.C., Gibbs, R.A., Coddington, J., Oda, H., Stanke, M., Ayoub, N.A., Damen, W.G.M., Prpic, N.-M., Flot, J.-F., Posnien, N., Richards, S., & McGregor, A.P. (2017) The house spider genome reveals a whole genome duplication during arachnid evolution. BMC Biology 15:62. [PDF] (*equal author contribution)
​
55. *Setton, E.V.W., *March, L.E., *Nolan, E.D., Jones, T.E., Cho, H., Wheeler, W.C., Extavour, C.G. & Sharma, P.P. (2017) Expression and function of spineless orthologs correlate with distal deutocerebral appendage morphology in Arthropoda. Developmental Biology 430:224-236. (*undergraduate co-author) [PDF]

54. Clouse, R.M., Branstetter, M.G., Buenavente, P.A.C., Crowley, L.M., Czekanski-Moir, J., General, D.E.M., Giribet, G., Harvey, M.S., Janies, D.A., Mohagan, A.B., Sharma, P.P. & Wheeler, W.C. (2017) First molecular phylogeny of two arachnid orders (Schizomida and Uropygi) supports a tropical Pangean origin and mid-Cretaceous diversification. Journal of Biogeography 44:2660-2672. [PDF] [Featured on the journal cover]

53. Sharma P.P., Oberski, J.T., Santiago, M.A., Ricardo Kriebel, *Savana M. Lipps, Buenavente, P.A.C., Diesmos, A.C., Janda, M., Boyer, S.L., Clouse, R.M. & Wheeler, W.C. (2017) There is no evidence that Podoctidae carry eggs of their own species: Reply to Machado and Wolff (2017). Molecular Phylogenetics and Evolution. (*undergraduate co-author) (doi: 10.1016/j.ympev.2017.03.026) [PDF]

52. *Santibañez-López, C., *Kriebel, R. & Sharma, P.P. (2017) eadem figura manet: Measuring morphological convergence in diplocentrid scorpions (Arachnida: Scorpiones: Diplocentridae) under a multilocus phylogenetic framework. Invertebrate Systematics. Invertebrate Systematics 31:233-248. [PDF] (*equal author contribution) [Featured on the journal cover]

51. Fernández, R., Sharma P.P., Tourinho, A.L. & Giribet, G. (2017) The Opiliones Tree of Life: shedding light on harvestmen relationships through transcriptomics. Proceedings of the Royal Society of London B: Biological Sciences 284:20162340. [PDF]

50. Sharma P.P., *Santiago, M.A., Kriebel, R., *Lipps, S.M., Buenavente, P.A.C., Diesmos, A.C., Janda, M., Boyer, S.L., Clouse, R.M. & Wheeler, W.C. (2017) A multilocus phylogeny of Podoctidae (Arachnida, Opiliones, Laniatores) reveals the disutility of subfamily nomenclature and traditional character systems in armored harvestman systematics. Molecular Phylogenetics and Evolution 106:164-173. [PDF] (*undergraduate co-author)

49. *Jay, K.R., Popkin-Hall, Z.R., *Coblens, M.J., *Oberski, J.T., Sharma, P.P. & Boyer, S.L. (2016) New species of Austropurcellia, cryptic short-range endemic mite harvestmen (Arachnida, Opiliones, Cyphophthalmi) from Australia's Wet Tropics biodiversity hotspot. Zookeys 586:37-93. [PDF] (*undergraduate co-author)

48. Iyer, H., Issigonis, M., Sharma, P.P., Extavour, C.G. & Newmark, P.A. (2016) A novel pre-meiotic function for boule in the planarian Schmidtea mediterranea. Proceedings of the National Academy of Sciences of the USA 113:E3509-E3518. ​(doi: 10.1073/pnas.1521341113) [PDF]

47. Sharma, P.P., Clouse, R.M. & Wheeler, W.C. (2016) Hennig's semaphoront concept and the use of ontogenetic stages in phylogenetic reconstruction. Cladistics. ​(doi: 10.1111/cla.12156) [PDF]

46. Daniels, S.R., Kunaka, C., Klaus, S. & Sharma, P.P. (2016) Unmasking alpha diversity, cladogenesis and biogeographical patterning in an ancient panarthropod lineage (Onychophora: Peripatopsidae: Opisthopatus cinctipes) with the description of five novel species. Cladistics. (doi: 10.1111/cla.12154) [PDF]

45. Giribet, G., Boyer, S.L., Baker, C.M., Fernández, R., Sharma P.P., de Bivort, B.L., Daniels, S.R., Harvey, M.S., Neethling, J.A. & Griswold, C.E. (2016) A molecular phylogeny of the temperate Gondwanan family Pettalidae (Arachnida, Opiliones, Cyphophthalmi) and the limits of taxonomic sampling. Zoological Journal of the Linnean Society 178:523-545. [PDF]

44. Pérez-González, A., Sharma, P.P. & Proud, D.N. (2016) Morphological tricks and blessed genitalia: rectifying the familial placement of Fijicolana tuberculata​ (Opiliones: Laniatores: Zalmoxidae). Zootaxa 4061:253-260. [PDF]

43. Clouse, R.M., Sharma, P.P., *Stuart, J.C., Davis, L.R., Giribet, G., Sarah, S.L. & Wheeler, W.C. (2016) Phylogeography of the harvestman Metasiro (Arthropoda, Arachnida, Opiliones) reveals a potential solution to the Pangean paradox. Organisms, Diversity and Evolution ​16:167-184. [​PDF​] (*undergraduate co-author)

42. Sharma, P.P., *Santiago, M.A., González-Santillán, E., Monod, L. & Wheeler, W.C. (2015) Evidence of duplicated Hox genes in the most recent common ancestor of extant scorpions. Evolution and Development ​17:347-355. [PDF] (*undergraduate co-author)
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