2010
DOI: 10.1590/s1415-47572010005000100
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Abstract: Tetragonisca angustula and Tetragonisca fiebrigi have recently been listed as valid species. This study aimed to cytogenetically investigate both species, emphasizing the new registry of B chromosomes in the tribe Meliponini. We analyzed colonies of T. angustula and T. fiebrigi collected at Tangará da Serra, Mato Grosso, Brazil, through conventional Giemsa staining, C-banding, and base-specific fluorochrome staining (CMA3/DAPI). T. angustula showed 2n = 34 chromosomes in females and n = 17 in males, with karyo… Show more

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Cited by 23 publications
(24 citation statements)
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“…Along with the increase in the number of cytogenetically characterized Partamona species, the pattern of heterochromatin composition has been shown to be constant for members of the tribe Meliponini. Most of the observed heterochromatin found is DAPI-positive, with only a few small CMA 3 -positive blocks associated with nucleolus organizer regions (NORs) in some species [Brito et al, 1997;Brito, 1998;Maffei et al, 2001;Rocha et al, 2003Rocha et al, , 2007 , 2008;Duarte et al, 2009;Martins et al, 2009;Barth et al, 2011;Lopes et al, 2011]. The correlation between positive C-banding, bright CMA 3 bands, and NOR markers has been previously reported for the genus Partamona [Brito et al, 1997[Brito et al, , 2005Brito, 1998], as well as for other species of the tribe Meliponini [Maffei et al, 2001;Rocha et al, 2002Rocha et al, , 2007Duarte et al, 2009;Lopes et al, 2011] and for other organisms such as wasps [Menezes et al, 2011], Hemiptera [Criniti et al, 2009], mollusks [Petrović et al, 2009], and fish [Swarça et al, 2003].…”
Section: Resultsmentioning
confidence: 99%
“…Along with the increase in the number of cytogenetically characterized Partamona species, the pattern of heterochromatin composition has been shown to be constant for members of the tribe Meliponini. Most of the observed heterochromatin found is DAPI-positive, with only a few small CMA 3 -positive blocks associated with nucleolus organizer regions (NORs) in some species [Brito et al, 1997;Brito, 1998;Maffei et al, 2001;Rocha et al, 2003Rocha et al, , 2007 , 2008;Duarte et al, 2009;Martins et al, 2009;Barth et al, 2011;Lopes et al, 2011]. The correlation between positive C-banding, bright CMA 3 bands, and NOR markers has been previously reported for the genus Partamona [Brito et al, 1997[Brito et al, , 2005Brito, 1998], as well as for other species of the tribe Meliponini [Maffei et al, 2001;Rocha et al, 2002Rocha et al, , 2007Duarte et al, 2009;Lopes et al, 2011] and for other organisms such as wasps [Menezes et al, 2011], Hemiptera [Criniti et al, 2009], mollusks [Petrović et al, 2009], and fish [Swarça et al, 2003].…”
Section: Resultsmentioning
confidence: 99%
“…Likewise, in M.rufiventris a small B chromosome was found in a few individuals (males and females) from one of the six colonies analysed (Lopes et al 2008). Marthe et al (2010) also described the presence of one B chromosome in some individuals of two colonies of P.cupira and Barth et al (2011) observed that colonies of Tetragoniscafiebrigi can harbour individuals with 0, 1 or 2 B chromosomes. Together, our data and these published reports demonstrated that intra- and intercolony variation in the number of B chromosomes is common in stingless bees.…”
Section: Resultsmentioning
confidence: 96%
“…By analyzing them at the esterase isozyme level, it was possible to identify T. angustula and T. fiebrigi, as described in the study by Stuchi et al (2012).A cytogenetic analysis of T. angustula and T. fiebrigi revealed that only T. fiebrigi has B chromosomes (Barth et al, 2011), allowing them to be separated as two distinct species. Diniz-Filho et al (1998) identified morphological variation in T. angustula specimens collected in various regions of Brazil; body size varied in a north-south direction and wing size varied in an east-west direction.…”
Section: Discussionmentioning
confidence: 96%