M Mohammad Sh.Sh., Vsevolodov E.B., Sharipov I.K., Aliev L. The obtaining of the sheep with odd number of chromosomes and the possibility of its inheritance

Al-Farabi Kazakh national university, Almaty, Kazakhstan 2Institute of general genetics and cytology, Almaty, Kazakhstan 3Shymkent zoo, Shymkent, Kazakhstan *E-mail: eduardvsevolodov@mail.ru

  • Shalakhmetova T. M. КазНУ имени аль-Фараби

Аннотация

The inheritance of the sheep karyotype with odd number of chromosomes was analyzed basing onthe results of interspecies crosses in Shymkent Zoo and the data of other researchers. As the sheep wildspecies (or subspecies) populations have different “even” number of chromosomes in their karyotype(Ovis ammon musimon – muflon 54 and O. ammon nigrimontana – arhar 56) their crosses have oddchromosome number (54/2 + 56/2 = 55) the hybrids being principally fertile. The progeny of interspecies hybrids with odd chromosome number (2n=55) can inherit such karyotype at least for 3 generationswithout obligate transfer to “even” chromosome number (2n=54 or 56). The mechanisms of karyotypetransfer to “even” chromosome number within the stable natural population is not clear. We can supposethat fertility of animals with odd chromosome number is somewhat lower than of normal animals with“even” chromosome number and the latter after all outnumber animals with odd chromosome numberin several generations up to elimination of the animals with odd chromosome number.Key words: wild sheep species, chromosomes number, sheep interspecies hybrids, inheritance ofodd chromosome number.
Как цитировать
T. M., Shalakhmetova. M Mohammad Sh.Sh., Vsevolodov E.B., Sharipov I.K., Aliev L. The obtaining of the sheep with odd number of chromosomes and the possibility of its inheritance. Вестник КазНУ. Серия экологическая, [S.l.], v. 50, n. 1, p. 123-129, nov. 2017. ISSN 2617-7358. Доступно на: <https://bulletin-ecology.kaznu.kz/index.php/1-eco/article/view/761>. Дата доступа: 11 aug. 2022
Раздел
АКТУАЛЬНЫЕ ПРОБЛЕМЫ СОХРАНЕНИЯ БИОЛОГИЧЕСКОГО РАЗНООБРАЗИЯ