Publications by authors named "Silvia Andrade Justi"

Article Synopsis
  • * A new study using phylogenomic analysis has clarified the phylogeny of mosquitoes, revealing their origins date back to the early Triassic period, which is significantly older than earlier estimates.
  • * The research indicates that mosquitoes have repeatedly shifted to feeding on mammals throughout their evolution, with these changes often aligning with major continental drift and vertebrate diversification events.
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The taxonomic status of (Latreille, 1811) is, by far, the most discussed within Triatominae. Molecular studies have recovered at least three independently evolving lineages in across its range. The original description of (as ) included few taxonomic characters, and no types were assigned.

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More than 100 years since the first description of Chagas Disease and with over 29,000 new cases annually due to vector transmission (in 2010), American Trypanosomiasis remains a Neglected Tropical Disease (NTD). This study presents the most comprehensive Trypanosoma cruzi sampling in terms of geographic locations and triatomine species analyzed to date and includes both nuclear and mitochondrial genomes. This addresses the gap of information from North and Central America.

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, a new triatomine species, is described based on a specimen from Panama, deposited in the collection of the National Museum of Natural History (NMNH), Smithsonian Institution, Washington, DC, USA. Attempts failed to identify this specimen using the keys by Lent and Wygodzinsky (1979) and Sandoval et al. (2007).

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The subfamily Triatominae (Hemiptera: Reduviidae) comprises hematophagous insects that are vectors of Chagas disease; including species assigned to the genera and . Initial examination of revealed the hirsuteness covering the entire body-a characteristic and striking feature of members of the genus -and a systematic study revealed several other morphological characters that are in diagnostic alignment with . Based on the examination of several specimens (including the lectotype), and with the additional support of molecular and cytogenetic data, we propose the formal transferal of (Stål, 1859) into the genus with the resulting new combination: (Stål, 1859) comb.

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Background: DNA barcoding assumes that a biological entity is completely separated from its closest relatives by a barcoding gap, which means that intraspecific genetic distance (from COI sequences) should never be greater than interspecific distances. We investigated the applicability of this strategy in identifying species of the genus Triatoma from South America.

Findings: We calculated intra and interspecific Kimura-2-parameter distances between species from the infestans, matogrossensis, sordida and rubrovaria subcomplexes.

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Article Synopsis
  • The study investigates the phylogenetic relationships within the Triatomini and Rhodniini tribes, which are key vectors for Chagas disease, and aims to provide clarity on their classification.
  • Utilizing six molecular markers, the researchers analyze various genera and species groups, revealing that certain Rhodnius species are more closely related than previously thought, and highlighting geographical distribution patterns in the Triatoma genus.
  • The authors suggest reclassifying some complexes as separate genera and emphasize the need for comprehensive morphological studies to properly categorize these insects.
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