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J Eukaryot Microbiol. 2019 Jun 24. doi: 10.1111/jeu.12748. [Epub ahead of print]

Morphology and Phylogenetic Position of Two New Gregarine Species (Apicomplexa: Eugregarinorida) Parasitizing the Lubber Grasshopper Taeniopoda centurio (Drury, 1770) (Insecta: Orthoptera: Romaleidae) in Mexico.

Author information

1
Posgrado en Ciencias Biológicas, Edificio D, 1? piso, Circuito de Posgrados, Universidad Nacional Autónoma de México, Ciudad Universitaria, Z. C. 04510, Coyoacán, Ciudad de México, México.
2
Laboratorio de Protozoología, Departamento de Biología Comparada, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Ciudad Universitaria, 04510, Coyoacán, Ciudad de México, México.
3
Department of Entomology, Texas A&M University, 2475 TAMU, 77843-2475, College Station, Texas, USA.

Abstract

Eugregarines are understudied apicomplexan parasites of invertebrates inhabiting marine, freshwater, and terrestrial environments. Most currently known terrestrial eugregarines have been described parasitizing the gut from less than 1% of total insect diversity, with a high likelihood that the remaining insect species are infected. Eugregarine diversity in orthopterans (grasshoppers, locusts, katydids, and crickets) is still little known. We carried out a survey of the eugregarines parasitizing the Mexican lubber grasshopper, Taeniopoda centurio, an endemic species to the northwest of Mexico. We described two new eugregarine species from the gut of the host: Amoebogregarina taeniopoda n. sp. and Quadruspinospora mexicana n. sp. Both species are morphologically dissimilar in their life-cycle stages. Our SSU rDNA phylogenetic analysis showed that both species are phylogenetically distant to each other, even though they parasitize the same host. Amoebogregarina taeniopoda n. sp. clustered within the clade Gregarinoidea, being closely related to Amoebogregarina nigra from the grasshopper Melanoplus differentialis. Quadruspinospora mexicana n. sp. clustered within the clade Actinocephaloidea and grouped with Prismatospora evansi, a parasite from dragonfly naiads. Amoebogregarina taeniopoda n. sp. and Q. mexicana n. sp. represent the first record of eugregarines found to infect a species of the family Romaleidae.

KEYWORDS:

Amoebogregarina taeniopoda ; Quadruspinospora mexicana ; Hidalgo State; SSU rDNA phylogeny; apicomplexan parasites; eugregarines; insect parasites

PMID:
31231936
DOI:
10.1111/jeu.12748

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