Karyotype evolution
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Recent papers in Karyotype evolution
The Neotropical Polistinae wasps are diverse in taxonomy, social behavior, and nesting founding characteristics. Although some species in this group have been used as models for studies on wasp’s biology, they are poorly known in terms of... more
We report the results of a study on the neo-sex chromosome systems of six Neotropical Melanoplinae species for contributing to a better understanding of their origin and behaviour of these systems. Our analyses included detailed... more
In this paper, karyotype data of the tribe Lilieae in China were analyzed and been superimposed onto a phylogenetic framework constructed by the internal transcribed spacer to investigate the karyotype evolution. Ten parameters for... more
... Milstead (1961) and Presch (1971) noted that this species exhibited the “Cnemidophorus” tongue type and recommended that this species be placed back in “Cnemidophorus”, whereas Vanzolini and Valencia (1966) believed the tongue... more
The clade of the North American lizard genus Sceloporus and its relatives comprising the subfamily Phrynosomatinae (Iguanidae) include perhaps 150 evolutionary lineages. The work reviewed here begins with the discovery more than 40 years... more
Insects harbor a tremendous diversity of sex determining mechanisms both within and between groups. For example, in some orders such as Hymenoptera, all members are haplodiploid, whereas Diptera contain species with homomorphic as well as... more
Citation: Řezáč, M., Arnedo, M. A., Opatova, V., Musilová, J., Řezáčová, V., & Král, J. (2018). Taxonomic revision and insights into the speciation mode of the spider Dysdera erythrina species-complex (Araneae: Dysderidae): sibling... more
Genome sizes of the planariansD. lugubris (2n=8),D. polychroa (2n=8) andD. benazzii (2n=16) were evaluated on metaphase plates by measuring both the Feulgen-DNA contents and the karyotype lengths. In the three species, genome sizes are... more
Sex chromosomes in species of the genus Microtus present some characteristic features that make them a very interesting group to study sex chromosome composition and evolution. M. cabrerae and M. agrestis have enlarged sex chromosomes... more
The review of the data on comparative chromosomal painting in mammals is presented. The development of new molecular-cytogenetic methods has resulted in the accumulation of the detailed information on homology of chromosomal segments of... more
In this series of reports I will attempt to trace both the evolutionarily important functions of and the evolutionary changes in different aspects of the cytogenetic systems of the various species of the iguanid lizard genus Sceloporus.... more
Karyotypic analyses were performed in fishes from the genus Hoplias (H. malabaricus and H. lacerdae groups) from the São Francisco River basin (Brazil), in an impacted region by a river transposition which altered the local ecology and... more
We have identified the almost complete correspondence of whole chromosome arms between the karyotypes of Bolomys lasiurus (2n = 33, 34) and Akodon montensis (2n = 24, 25) using comparative analysis of the GTG-banding patterns. To explain... more
The butterfly lizard (Leiolepis reevesii rubritaeniata) has the diploid chromosome number of 2n = 36, comprising two distinctive components, macrochromosomes and microchromosomes. To clarify the conserved linkage homology between lizard... more
Although the cytology of the Oedionychina flea beetles is unorthodox in many ways, their karyotypes are conservative in chromosome number and sex chromosome system: typically 2n = 22(X, y); 10 + X + y. Differences between karyotypes are... more
The platypus (2n = 52) has a complex karyotype that has been controversial over the last three decades. The presence of unpaired chromosomes and an unknown sex-determining system especially has defied attempts at conventional analysis.... more
Astyanax scabripinnis has been considered a species complex because it presents high karyotypic and morphological variability among its populations. In this work, individuals of two A. scabripinnis populations from different streams in... more