Arthropoda Cytogenetics

 


Cytogenetics of Arthropoda Spider database Scorpion database Pseudoscorpion database Harvestmen database Chromosomal analyses

Douglas Araujo

Graduated in Biology (2002)
PhD. in Cellular and Molecular Biology (2007)
 
Students
Mariana Bessa Sanches (M.Sc.)
Bruno Cansanção da Silva (undergraduate)
Lucas Henrique Bonfim de Souza (undergraduate)
 
   

Research Interests

Cytogenetics, meiosis, molecular cytogenetics, sex chromosome evolution, cytotaxonomy.
 
Current Research Projects

- Cytogenetic analyses on Araneomorphae (Arachnida, Araneae)

 
Recent Publications

Papers

Araujo, D.; Sanches, M.B.; Lima, J.S.G.S.; Nascimento, E.V.J.; Giroti, A.M.; Brescovit, A.D.; Cella, D.M. and Schneider, M.C. Chromosomal analyses of Salticinae and Lyssomaninae reveal a broad occurrence of the 2n♂ = 28, X1X20 karyotype within Salticidae. The Journal of Arachnology, v. 44, p. 148-152, 2016.

Araujo, D.; Oliveira, E.G.; Giroti, A.M.; Mattos, V.F.; Paula-Neto, E.; Brescovit, A.D.; Schneider, M.C. and Cella, D.M. Chromosome evolution in lycosoid spiders (Araneomorphae): a scenario based on analysis of seven species of the families Lycosidae, Senoculidae and Trechaleidae. The Journal of Arachnology, v. 43, p. 174-181, 2015a.

Araujo, D.; Paula-Neto, E.; Brescovit, A.D.; Cella, D.M. and Schneider, M.C. Chromosomal similarities between Nephilidae and Tetragnathidae indicate unique evolutionary traits among Araneoidea. Italian Journal of Zoology, v. 82, n. 4, p. 513-520, 2015b.
 

Araujo, D.; Oliveira, E.G.; Giroti, A.M.; Mattos, V.F.; Paula-Neto, E.; Brescovit, A.D.; Schneider, M.C. and Cella, D.M. Comparative cytogenetics of seven Ctenidae species (Araneae). Zoological Science, v. 31, n. 2, p. 83-88, 2014.
 

Paula-Neto, E.; Araujo, D.; Carvalho, L.S.; Cella, D. M. and SCHNEIDER, M.C. Chromosomal characteristics of a Brazilian whip spider (Amblypygi) and evolutionary relationships with other arachnid orders. Genetics and Molecular Research. , v.12, p.3726 - 3734, 2013.

- Araujo D; Mattos VF; Giroti AM; Kraeski MG; Carvalho LS; Brescovit, AD. Cytogenetical characterization of six orb-weaver species and review of cytogenetical data for Araneidae. Journal of Arachnology, 39(2): 337-344, 2011.

- Stavale LM; Schneider MC; Araujo D; Brescovit AD; Cella DM. Chromosomes of Theridiidae spiders (Entelegynae): interspecific karyotype diversity in Argyrodes and diploid number intraspecific variability in Nesticodes rufipes. Genetics and Molecular Biology, 33: 1-6, 2010.

- Araujo D; Maia UM; Brescovit AD. The first cytogenetic characterization of the poisonous black widow spider Latrodectus gr. Curacaviensis from Brazil, with chromosomal review of the family Theridiidae (Arachnida, Araneae). Micron (Oxford), 41: 165-168, 2010.

- Araujo D; Rheims CA; Brescovit AD; Cella DM. Extreme degree of chromosome number variability in species of the spider genus Scytodes (Araneae, Haplogynae, Scytodidae). Journal of Zoological Systematics and Evolutionary Research, 46: 89-95, 2008.

- Ramalho MO; Araújo D; Schneider MC; Brescovit AD; Cella DM. Mesabolivar brasiliensis (Moenkhaus 1898) and Mesabolivar cyaneotaeniatus (Keyserling 1891) (Araneomorphae, Pholcidae): close relationship reinforced by cytogenetic analyses. Journal of Arachnology, 36: 01-04, 2008.

- Araujo D; Cella DM; Rheims CA; Brescovit AD. Chromosomal data of two pholcids (Araneomorphae, Haplogynae): a new diploid number and the first cytogenetical record in the New World Clade. Journal of Arachnology, 33: 591-596, 2005.

- Araujo D; Cella DM; Brescovit AD. Cytogenetic analysis of Nephilengys cruentata (Araneae, Araneomorphae, Tetragnathidae): standard staining, NORs, C-bands and base-specific fluorochromes. Brazilian Journal of Biology, 65: 193-202, 2005.

Book Chapters

- Araujo D; Schneider MC; Paula-Neto E; Cella DM. Sex chromosomes and meiosis in spiders: a review. In: Meiosis - Molecular Mechanisms and Cytogenetic Diversity, Andrew Swan (Ed.). ISBN 978-953-51-0118-5, Rijeka: InTech, p. 87-108, 2012. Available from: http://www.intechopen.com/books/meiosis-molecular-mechanisms-and-cytogenetic-diversity/sex-chromosomes-and-meiosis-of-spiders-a-review

 
Courses Taught

Cell Biology

Molecular Biology

 


Cytogenetics of Arthropoda Spider database Scorpion database Pseudoscorpion database Harvestmen database Chromosomal analyses