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Pimenov A.V. Supernumerary (B) chromosomes in populations of Picea abies (L.) H. Karst. From Western Rhodopes, (Bulgaria)

Tashev A.N., Sedelínikova T.S., Pimenov A.V.

 


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Investigations on B chromosomes found for the first time for Picea abies (L.) H. Karst. have been conducted. Seeds of Picea abies from two populations of Western Rhodopes (Bulgaria) located at the southern border of species range, and protected according to Bern Convention and EC Habitat Directive were collected for this study. Mixoploidy was detected in some germinating seeds of Picea abies. It was found that metaphase cells of germinating seeds contain 0Ė4 B chromosomes of both metacentric and submetacentric types. The variability of ¬ chromosomes number and their occurrence was observed. Along with B chromosomes, some chromosome aberrations such as fragments and ring chromosomes were revealed in metaphase cells of Picea abies from studied populations. The possible adaptive role of B chromosomes presence for Picea spp. is discussed.

Tsitologiya i Genetika 2014, vol. 48, no. 3, pp. 30-36

E-mail: altashev mail.ru; tss ksc.krasn.ru

Tashev A.N., Sedelínikova T.S., Pimenov A.V. Pimenov A.V. Supernumerary (B) chromosomes in populations of Picea abies (L.) H. Karst. From Western Rhodopes, (Bulgaria), Tsitol Genet., 2014, vol. 48, no. 3, pp. 30-36.

In "Cytology and Genetics":
A. N. Tashev, T. S. SedelínikovaA. V. Pimenov Supernumerary (B) chromosomes in populations of Picea abies (L.) H. Karst. from Western Rhodopes (Bulgaria), Cytol Genet., 2014, vol. 48, no. 3, pp. 160Ė165
DOI: 10.3103/S0095452714030116


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