Dataset Information

Overlooked gall-inducing moths revisited, with the description of Andescecidiumparrai gen. et sp. n. and Olierasaizi sp. n. from Chile (Lepidoptera, Cecidosidae).

ABSTRACT: There are still many gall systems associated with larvae of Lepidoptera in which the true gall-inducers have not been identified to species. Reports on misidentification of gall inducers have been recurrent for these galls, particularly in complex gall-systems that may include inquilines, kleptoparasites, and cecidophages, among other feeding guilds such as predators and parasitoid wasps. Here we describe and illustrate the adults, larvae, pupae and galls, based on light and scanning microscopy, of Andescecidiumparrai gen. et sp. n. and Olierasaizi sp. n., two sympatric cecidosid moths that are associated with Schinuspolygamus (Cav.) Cabrera (Anacardiaceae) in central Chile. Adults, immatures, and galls of the former did not conform to any known cecidosid genus. Galls of A.parrai are external, spherical, and conspicuous, being known for more than one century. However, their induction has been mistakenly associated with either unidentified Coleoptera (original description) or Olieraargentinana Brèthes (recently), a distinct cecidosid species with distribution restricted to the eastern Andes. Galls of O.saizi had been undetected, as they are inconspicuous. They occur under the bark within swollen stems, and may occur on the same plant, adjacent to those of A.parrai. We also propose a time-calibrated phylogeny using sequences from mitochondrial and nuclear loci, including specimens of the new proposed taxa. Thus in addition to clarifying the taxonomy of the Chilean cecidosid species we also tested their monophyly in comparison to congeneric species and putative specimens of all genera of Neotropical and African cecidosids.

SUBMITTER: Silva GT

PROVIDER: S-EPMC6242961 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Publications

Overlooked gall-inducing moths revisited, with the description of <i>Andescecidiumparrai</i> gen. et sp. n. and <i>Olierasaizi</i> sp. n. from Chile (Lepidoptera, Cecidosidae).

Silva Gabriela T GT Moreira Gilson R P GRP Argas Héctor A HA Gislene L Gonçalves Mainardi Marina D MD Las Germán San GS Davis Donald D

ZooKeys 20181112 795

There are still many gall systems associated with larvae of Lepidoptera in which the true gall-inducers have not been identified to species. Reports on misidentification of gall inducers have been recurrent for these galls, particularly in complex gall-systems that may include inquilines, kleptoparasites, and cecidophages, among other feeding guilds such as predators and parasitoid wasps. Here we describe and illustrate the adults, larvae, pupae and galls, based on light and scanning microscopy, ...[more]

PMID: 30505156

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Project description:BackgroundPhotosynthetic eukaryotes with a secondary plastid of red algal origin (cryptophytes, haptophytes, stramenopiles, dinoflagellates, and apicomplexans) are hypothesized to share a single origin of plastid acquisition according to Chromalveolate hypothesis. Recent phylogenomic analyses suggest that photosynthetic "chromalveolates" form a large clade with inclusion of several non-photosynthetic protist lineages. Katablepharids are one such non-photosynthetic lineage closely related to cryptophytes. Despite their evolutionary and ecological importance, katablepharids are poorly investigated.Methodology/principal findingsHere, we report a newly discovered flagellate, Roombia truncata gen. et sp. nov., that is related to katablepharids, but is morphologically distinct from othermembers of the group in the following ways: (1) two flagella emerge from a papilla-like subapical protrusion, (2) conspicuous ejectisomes are aligned in multiple (5-11) rows, (3) each ejectisome increases in size towards the posterior end of the rows, and (4) upon feeding, a part of cytoplasm elastically stretch to engulf whole prey cell. Molecular phylogenies inferred from Hsp90, SSU rDNA, and LSU rDNA sequences consistently and strongly show R. truncata as the sister lineage to all other katablepharids, including lineages known only from environmental sequence surveys. A close association between katablepharids and cryptophytes was also recovered in most analyses. Katablepharids and cryptophytes are together part of a larger, more inclusive, group that also contains haptophytes, telonemids, centrohelids and perhaps biliphytes. The monophyly of this group is supported by several different molecular phylogenetic datasets and one shared lateral gene transfer; therefore, we formally establish this diverse clade as the "Hacrobia."Conclusions/significanceOur discovery of R. truncata not only expands our knowledge in the less studied flagellate group, but provide a better understanding of phylogenetic relationship and evolutionary view of plastid acquisition/losses of Hacrobia. Being an ancestral to all katablepharids, and readily cultivable, R. truncata is a good candidate for multiple gene analyses that will contribute to future phylogenetic studies of Hacrobia.

Dataset Information

Overlooked gall-inducing moths revisited, with the description of Andescecidiumparrai gen. et sp. n. and Olierasaizi sp. n. from Chile (Lepidoptera, Cecidosidae).

Publications

Overlooked gall-inducing moths revisited, with the description of <i>Andescecidiumparrai</i> gen. et sp. n. and <i>Olierasaizi</i> sp. n. from Chile (Lepidoptera, Cecidosidae).

Similar Datasets

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