Publications by authors named "Ekaterina Grishko"
Meiotic recombination is an important source of genetic diversity. Using immunolocalization of several meiotic proteins at the spreads of male pachytene cells, we estimated the number of recombination nodules per cell and their distribution along the macrochromosome 1 of the , , , and . The macrochromosomes of the two former species have metapolycentromeres, composed of several centromeric domains.
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- Only a small fraction (less than 10%) of bird species have known karyotypes, but this study analyzes the male pachytene karyotypes of 17 different bird species using advanced immunolocalization techniques.
- The research provides new karyotype descriptions for three bird species, corrects the karyotype data for ten species, and confirms findings for four additional species, demonstrating the conservative nature of passerine karyotypes.
- Differences in chromosome size and morphology, particularly in germline-restricted chromosomes, suggest rapid evolution among species, with certain birds exhibiting unique features like variable centromere sizes and heterozygosity for chromosomal inversions.