Dataset Information

Taxonomic revision of the Afrotropical hover fly genus Senaspis Macquart (Diptera, Syrphidae).

ABSTRACT: The representatives of the Afrotropical hover fly genus Senaspis Macquart (Diptera) are revised. In total, ten species are recognized. Senaspis apophysata (Bezzi) is herewith placed as junior synonym of S. flaviceps Macquart, S. livida (Bezzi) is herewith placed as junior synonym of S. dentipes (Macquart) and S. griseifacies (Bezzi) is herewith placed as junior synonym of S. haemorrhoa (Gerstaecker). All species are redescribed and an identification key is provided. DNA barcoding analysis (7 species, 64 barcodes) showed that the technique can be used to unambiguously identify the species. The relationships among the different Senaspis species are discussed based on morphological and DNA data.

SUBMITTER: Meyer M

PROVIDER: S-EPMC7752890 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Taxonomic revision of the Afrotropical hover fly genus Senaspis Macquart (Diptera, Syrphidae).

Meyer Marc De M Goergen Georg G Jordaens Kurt K

ZooKeys 20201214

The representatives of the Afrotropical hover fly genus Senaspis Macquart (Diptera) are revised. In total, ten species are recognized. Senaspis apophysata (Bezzi) is herewith placed as junior synonym of S. flaviceps Macquart, S. livida (Bezzi) is herewith placed as junior synonym of S. dentipes (Macquart) and S. griseifacies (Bezzi) is herewith placed as junior synonym of S. haemorrhoa (Gerstaecker). All species are redescribed and an identificati ...[more]

PMID: 33384563

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Project description:BackgroundIn animals, signaling of Bone Morphogenetic Proteins (BMPs) is essential for dorsoventral (DV) patterning of the embryo, but how BMP signaling evolved with changes in embryonic DV differentiation is largely unclear. Based on the extensive knowledge of BMP signaling in Drosophila melanogaster, the morphological diversity of extraembryonic tissues in different fly species provides a comparative system to address this question. The closest relatives of D. melanogaster with clearly distinct DV differentiation are hover flies (Diptera: Syrphidae). The syrphid Episyrphus balteatus is a commercial bio-agent against aphids and has been established as a model organism for developmental studies and chemical ecology. The dorsal blastoderm of E. balteatus gives rise to two extraembryonic tissues (serosa and amnion), whereas in D. melanogaster, the dorsal blastoderm differentiates into a single extraembryonic epithelium (amnioserosa). Recent studies indicate that several BMP signaling components of D. melanogaster, including the BMP ligand Screw (Scw) and other extracellular regulators, evolved in the dipteran lineage through gene duplication and functional divergence. These findings raise the question of whether the complement of BMP signaling components changed with the origin of the amnioserosa.ResultsTo search for BMP signaling components in E. balteatus, we generated and analyzed transcriptomes of freshly laid eggs (0-30 minutes) and late blastoderm to early germband extension stages (3-6 hours) using Roche/454 sequencing. We identified putative E. balteatus orthologues of 43% of all annotated D. melanogaster genes, including the genes of all BMP ligands and other BMP signaling components.ConclusionThe diversification of several BMP signaling components in the dipteran linage of D. melanogaster preceded the origin of the amnioserosa.[Transcriptome sequence data from this study have been deposited at the NCBI Sequence Read Archive (SRP005289); individually assembled sequences have been deposited at GenBank (JN006969-JN006986).].

Project description:A revision of the shore-fly genus Hydrochasma Hendel. The species of the genus Hydrochasma Hendel are revised, including 27 new species (type locality in parenthesis): H. andeum (Ecuador. Guayas: Boliche (02°07.7'S, 79°35.5'W)), H. annae (United States. Utah. Grand: Swasey Beach (15.3 km N Green River; 39°07'N, 110°06.6'W; Green River; 1255 m)), H. capsum (Ecuador. Orellana: RíoTiputini (0°38.2'S, 76°8.9'W)), H. castilloi (Ecuador. Loja: Catamayo (03°59'S, 79°21'W)), H. crenulum (Peru. Cuzco: Paucartambo, Atalaya (Río Alto Madre de Dios; 12°53.3'S, 71°21.6'W; 600 m)), H. denticum (Ecuador. Orellana: Río Tiputini (0°38.2'S, 76°8.9'W)), H. digitatum (Peru. Madre de Dios: Diamante (Río Alto Madre de Dios; 12°19.9'S, 70°57.5'W; 400 m)), H. distinctum (Costa Rica. Limón: Parque Nacional Barbilla, Sector Casas Negras, (10°0.8'N, 83°28.1'W; 300 m)), H. dolabrutum (Dominican Republic. Barahona: Barahona (18°12'N, 71°5.3'W)), H. edmistoni (Dominican Republic. Azua: near Pueblo Viejo (18°24.8'N, 70°44.7'W)), H. falcatum (Peru. Madre de Dios: Río Manu, Erika (near Salvación; 12°50.7'S, 71°23.3'W; 550 m)), H. glochium (Dominican Republic. Peravia: San José Ocoa (10 km NE; 18°35'N, 70°25.6'W)), H. kaieteur (Guyana. Kaieteur Falls (05°10.5'N, 59°26.9'W)), H. lineatum (Trinidad and Tobago. Trinidad. St. George: Filette (1 km SE; 10°47'N, 61°21'W)), H. miguelito (Honduras. Cortés: San Pedro Sula (8 km S; 15°25.7'N, 88°01.4'W)), H. octogonum (Ecuador. Manabí: Pichincha (01°02.7'S, 79°49.2'W)), H. parallelum (Trinidad and Tobago. Trinidad. St. Andrew: Lower Manzanilla (16 km S; 10°22'N, 61°01'W)), H. peniculum (Dominican Republic. Pedernales: Pedernales (18°01.8'N, 71°44.7'W)), H. rictum (Honduras. Cortés: San Pedro Sula (8 km S; 15°25.7'N, 88°01.4'W)), H. robustum (Brazil. São Paulo. Ubatuba, Praia Puruba (23°21'S, 44°55.6'W; beach)), H. sagittarium (Trinidad and Tobago. Tobago: St. John: Parlatuvier (creek; 11°17.9'N, 60°35'W)), H. simplicum (Costa Rica. Limón: Parque Nacional Barbilla, Sector Casas Negras, (10°01.2'N, 83°26.2'W; 300 m)), H. sinuatum (Belize. Stann Creek: Mullins Creek (17 km N Dangriga; 17°06.2'N, 88°17.8'W)), H. spinosum (Costa Rica. Limón: Westfalia (4 km S; 09°54.5'N, 82°59'W; beach)), H. urnulum (Dominican Republic. Puerto Plata: Río Camu (14 km E Puerto Plata; 19°41.9'N, 70°37.5'W)), H. viridum (Guyana. Karanambo, Rupununi River (ox bow; 03°45.1'N, 59°18.6'W)), H. williamsae (Belize. Stann Creek: Mullins River (17 km N Dangriga; 17°06.2'N, 88°17.8'W)). All known species are described with an emphasis on structures of the male terminalia, which are fully illustrated. Detailed locality data and distribution maps for all species are provided. A lectotype is designated for Discocerina incisum Coquillett and Hydrochasma zernyi Hendel. For perspective and to facilitate genus-group and species-group recognition, the tribe Discocerinini is diagnosed and a key to included genera in the New World is provided.

Dataset Information

Taxonomic revision of the Afrotropical hover fly genus Senaspis Macquart (Diptera, Syrphidae).

Publications

Taxonomic revision of the Afrotropical hover fly genus <i>Senaspis</i> Macquart (Diptera, Syrphidae).

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