Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.3390/genes8110323

Ключевые слова: Chromosome, Chromosome microdissection, Chromosome painting, DNA libraries, Evolution, Fluorescent in situ hybridization, Grasshoppers, Neo-sex, Neo-X, Neo-Y, Pamphagidae

Аннотация: In most phylogenetic lineages, the evolution of sex chromosomes is accompanied by their heteromorphization and degradation of one of them. The neo-sex chromosomes are useful model for studying early stages of these processes. Recently two lineages of the neo-sex chromosomes on different stages of heteromorphization was discovered iПоказать полностьюn Pamphagidae family. The neo-sex chromosome heteromorphization was analyzed by generation of DNA probes derived from the neo- Xs and neo-Ys followed with chromosome painting in nineteen species of Pamphagidae family. The homologous regions of the neo-sex chromosomes were determined in closely related species with the painting procedure and image analysis with application of the Visualization of the Specific Signal in Silico software package. Results of these analyses and distribution of C-positive regions in the neo-sex chromosomes revealed details of the heteromorphization of the neo-sex chromosomes in species from both phylogenetic lineages of Pamphagidae grasshoppers. The hypothetical mechanism of the neo-Y degradation was suggested. It includes expansion of different repeats from the proximal neo-Y chromosome region by inversions, spreading them towards distal region. Amplification of these repeats leads to formation of C-positive regions and elimination of the Cnegative regions located between them. © 2017 by the authors; Licensee MDPI, Basel, Switzerland.

Журнал: Genes

Выпуск журнала: Vol. 8, Is. 11

Номера страниц: 323

ISSN журнала: 20734425

Издатель: MDPI AG

• Yerkinovich I. (The Federal Research Center, Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Lavrentjev Ave., 10, Novosibirsk, Russian Federation, Institute of Systematics and Ecology of Animals, Russian Academy of Sciences, Siberian Branch, Frunze str. 11, Novosibirsk, Russian Federation)
• Bugrov A.G. (Institute of Systematics and Ecology of Animals, Russian Academy of Sciences, Siberian Branch, Frunze str. 11, Novosibirsk, Russian Federation, Novosibirsk State University, Department of Natural Sciences, Pirogov str., 2, Novosibirsk, Russian Federation)
• Buleu O.G. (Institute of Systematics and Ecology of Animals, Russian Academy of Sciences, Siberian Branch, Frunze str. 11, Novosibirsk, Russian Federation, Novosibirsk State University, Department of Natural Sciences, Pirogov str., 2, Novosibirsk, Russian Federation)
• Bogomolov A.G. (The Federal Research Center, Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Lavrentjev Ave., 10, Novosibirsk, Russian Federation, Novosibirsk State University, Department of Natural Sciences, Pirogov str., 2, Novosibirsk, Russian Federation)
• Rubtsov N.B. (The Federal Research Center, Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Branch, Lavrentjev Ave., 10, Novosibirsk, Russian Federation, Novosibirsk State University, Department of Natural Sciences, Pirogov str., 2, Novosibirsk, Russian Federation)

• Scopus