Karyotype and meiotic behaviour of the holokinetic chromosomes of six Argentine species of Pentatomidae (Heteroptera)

Rebagliati, Pablo Javier; Mola, Liliana M.; Papeschi, Alba Graciela

doi:10.1080/00087114.2001.10589245

Cited by 25 publications

(48 citation statements)

References 12 publications

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“…In Pentatomidae, sex chromosomes usually associate during the diffuse stage although there is much variation with respect to degree of association between X and Y among different species (Rebagliati et al, 2001;Lanzone, Souza, 2006). In the present three predator species, X and Y chromosomes associate closely to form a single heteropycnotic body during the diffuse stage as has been observed in other species of Asopinae (Montgomery, 1906;Heizer, 1950Heizer, , 1951 and Pentatomidae in general (Camacho et al, 1985;Satapathy, Patnaik, 1988, 1991.…”

Section: As 2n=14=12a+xy Andsupporting

confidence: 48%

Meiotic behaviour of chromosomes in three predator species of the subfamily Asopinae (Heteroptera: Pentatomidae)

Kaur¹,

Semahagn²

2010

CCG

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Abstract. The study of chromosome behaviour has been carried out on males of three species of the Asopinae (Pentatomidae) bugs Andrallus spinidens (Fabricius, 1787), Canthecona furcellata Wolff, 1801 and Perillus bioculatus (Fabricius, 1775) collected in India. All the species have XY sex chromosome system and 12 autosomes (2n=14=12A+XY). The general course of meiosis is fairly uniform and is typical for heteropteran species. However, the species differ in the extent of decondensation of the autosomes during the diffuse stage and the number of ring bivalents at diplotene/ diakinesis. Also, a metaphase I arrangement of chromosomes which is different from the typical Pentatomidae type has been observed in C. furcellata and P. bioculatus.

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Section: As 2n=14=12a+xy Andsupporting

confidence: 48%

Meiotic behaviour of chromosomes in three predator species of the subfamily Asopinae (Heteroptera: Pentatomidae)

Kaur¹,

Semahagn²

2010

CCG

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“…However, in this family sex chromosomes behavior differs notably between species, with approximately 90% of Nezara viridula cells showing associated sex chromosomes during the diffuse stage and diplotene (Camacho et al, 1985) and similar behavior having been described for various other species of this family Patnaik, 1988, 1991). In the Antiteuchus species analyzed by us the frequency of XY association was less than 50% and indicates a lower tendency towards association, such behavior having also been observed for some pentatomid species analyzed by Rebagliati et al (2001). In A. sepulcralis we found that the association frequency of the Y chromosome with one of the telomeres of autosome 1 was 28.17% whereas association with the other autosomes was only 16.2%, indicating the preferential association of this sex chromosome with some autosomes.…”

Section: Discussionmentioning

confidence: 72%

“…Heteroptera chiasmata distribution and frequency data show that they are located terminally and that there is a predominance of one chiasma per bivalent (Satapathy and Patnaik, 1988;González-Garcia et al, 1996;Grozeva and Nokkala, 1996;Bressa et al, 1999;Nokkala and Nokkala, 1999), although subterminal chiasmata have been observed in some species and two chiasmata have been noted in some bivalents (Camacho et al, 1985;Mola and Papeschi, 1993;Nokkala and Nokkala, 1997;Rebagliati et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

“…The presence of the diffuse stage is a frequent meiotic phenomenon among heteropterans, although its duration and the degree of chromosome de-condensation seems to vary between species, ranging from a high degree of decondensation (Solari, 1979;Nokkala and Nokkala, 1984;Camacho et al, 1985;Nokkala, 1986;Rebagliati et al, 1998) to partial de-condensation (Papeschi and Mola 1990;52 Lanzone and Souza Jacobs and Liebenberg, 2001) up to cases of species whose chromosomes do not de-condense at all and which consequently do not have a diffuse stage (Jacobs and Liebenberg, 2001;Rebagliati et al, 2001). The three Antiteuchus species analyzed by us were characterized by a long diffuse stage and an ample degree of chromosome de-condensation during which the cells presented large nucleoli indicating strong transcriptional activity.…”

Section: Discussionmentioning

confidence: 99%

“…During the first division, the sex chromosomes are univalent, while during telophase I or metaphase II the X and Y chromosomes form a pseudobivalent that segregates in a post-reductional manner in male second meiotic division. In addition, a particular type of testicular follicle called a harlequin lobe, which produces abnormal spermatozoa, has been described in the family Pentatomidae, mainly in the subfamily Discocephalinae (Ueshima, 1979;Rebagliati et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

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Chromosome complement and meiosis in three species of the Neotropical bug genus Antiteuchus (Heteroptera, Pentatomidae, Discocephalinae)

Lanzone

Souza

2006

Genet. Mol. Biol.

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Orcein staining of spermatocytes was used to study the meiotic behavior of holocentric chromosomes in three member of the genus Antiteuchus (commonly known as stink bugs). We describe and illustrate the karyotype of Antiteuchus mixtus, A. sepulcralis and A. macraspis which were cytogenetically characterized as having a diploid number of 2n = 14 and an XY sex chromosome system showing pre-reductional meiosis for autosomes and post-reductional meiosis for sex chromosomes. These species were also shown to have a long diffuse stage during meiotic prophase I and aberrant harlequin-type meiocytes. The chiasma frequency was also analyzed for two of the three species studied.

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Chromosomal evolutionary dynamics of four multigene families in Coreidae and Pentatomidae (Heteroptera) true bugs

2016

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Previous chromosome mapping of multigene families in Pentatomomorpha (Heteroptera) insects, which was restricted to the major rDNA, revealed remarkable conservation of number of clusters and chromosomal positions. Aiming to understand the chromosomal organization and evolutionary patterns of multigene families in karyotypes of Heteroptera, we performed a chromosomal mapping using four distinct multigene families in representatives of Coreidae (ten species) and Pentatomidae (five species). A single pair of the major rDNA cluster (18S rDNA probe) and a single pair of the minor rDNA cluster (5S rDNA probe), both terminally located were primarily observed, being, in most species, located in distinct chromosomes. However, some alternative patterns were also observed. In species in which the U2 snDNA and H4 gene clusters were mapped, they were mainly located in one autosomal pair each, wherein the H4 gene cluster was located in different positions. Our data suggest that the karyotype diversity reported in Coreidae is not reflected in the distribution diversity of multigene families. This contrasts with the data for Pentatomidae, with a conserved gross karyotype but a discrete diversity in the location of the clusters of multigene families, indicating genome dynamics for these markers. The findings are discussed to shed light on the possible causes for the conservation or variation observed and to assist in understanding the chromosomal evolutionary trends in the group.

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Karyotype and meiotic behaviour of the holokinetic chromosomes of six Argentine species of Pentatomidae (Heteroptera)

Cited by 25 publications

References 12 publications

Meiotic behaviour of chromosomes in three predator species of the subfamily Asopinae (Heteroptera: Pentatomidae)

Meiotic behaviour of chromosomes in three predator species of the subfamily Asopinae (Heteroptera: Pentatomidae)

Chromosome complement and meiosis in three species of the Neotropical bug genus Antiteuchus (Heteroptera, Pentatomidae, Discocephalinae)

Chromosomal evolutionary dynamics of four multigene families in Coreidae and Pentatomidae (Heteroptera) true bugs

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