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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Distribution of constitutive heterochromatin in Pachycoris torridus (Hemiptera, Scutelleridae) with different chromatic patterns

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Author(s):
Souza-Firmino, T. S. [1] ; Alevi, K. C. C. [2] ; Pereira, L. L. V. [1] ; Souza, E. R. S. [1] ; Junior, F. C. S. [1] ; Banho, C. A. [1] ; Carmo, G. O. [1] ; Itoyama, M. M. [1]
Total Authors: 8
Affiliation:
[1] Univ Estadual Paulista Julio de Mesquite Filho, Inst Biociencias Letras & Ciencias Exatas, Dept Biol, Lab Citogenet & Mol Insetos, Sao Jose Do Rio Preto, SP - Brazil
[2] Univ Estadual Paulista Julio de Mesquite Filho, Inst Biociencias Letras & Ciencias Exatas, Dept Biol, Lab Biol Celular, Sao Jose Do Rio Preto, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Genetics and Molecular Research; v. 14, n. 4, p. 15749-15753, 2015.
Web of Science Citations: 0
Abstract

The stink bug Pachycoris torridus is a pest of great agricultural importance due to its records on culture of physic nut (Jatropha curcas), which is the raw material for biodiesel production. An interesting feature of this insect is its high phenotypic variability, a characteristic that resulted in it being classified as a new species on eight separate occasions. In the suborder Heteroptera, the heterochromatin pattern is specific and often allows species to be differentiated. To confirm whether there is differentiation between specimens of P. torridus with different color patterns (yellow, orange, brown, and red), samples were analyzed cytogenetically using the C-banding method. During meiotic prophase, the four color patterns analyzed showed a large heterochromatic chromocenter, consisting of a combination of both sex chromosomes (X and Y). Thus, the present study reports chromosomal homogeneity in different color patterns of P. torridus and highlights the importance of this tool in the description of new species. (AU)

FAPESP's process: 08/09166-0 - Phylogenetic relationship of 24 species belonging to 4 families of Heteroptera (Coreidae, Gerridae, Pentatomidae and Reduviidae) from the COI mitochondrial gene
Grantee:Mary Massumi Itoyama
Support Opportunities: Regular Research Grants