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首页> 外文期刊>Cytology and genetics >Supernumerary (B) Chromosomes in Populations of Picea abies (L.) H. Karst. from Western Rhodopes (Bulgaria)
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Supernumerary (B) Chromosomes in Populations of Picea abies (L.) H. Karst. from Western Rhodopes (Bulgaria)

机译：云杉（L.）H. Karst种群中的多余（B）染色体。来自Western Rhodopes（保加利亚）

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摘要

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 0-4 B chromosomes of both metacentric and submetacentric types. The variability of B 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.
机译：首次发现白云杉（L.）H. Karst的B染色体调查。已经进行了。本研究收集了位于物种范围南部边界并受伯尔尼公约和EC人居指令保护的两个西部红景天（保加利亚）种群的云杉云杉种子。在云杉的一些发芽种子中检测到混合倍性。发现发芽种子的中期细胞含有亚中心型和亚中心型的0-4B染色体。观察到B染色体数目及其发生的变异性。在研究种群的云杉云杉中期细胞中，除了B染色体外，还发现了一些染色体畸变，如片段和环状染色体。 B染色体存在对云杉的可能的适应作用。讨论。

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  • 来源
    《Cytology and genetics》 |2014年第3期|160-165|共6页
  • 作者

    A. N. Tashev; T. S. Sedelnikova; A. V. Pimenov;

  • 作者单位

    University of Forestry, Kliment Ohridski st. 10, Sofia, 1756 Bulgaria;

    V.N. Sukachev Institute of Forest, Siberian Branch of Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, 660036 Russia;

    V.N. Sukachev Institute of Forest, Siberian Branch of Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, 660036 Russia;

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  • 正文语种 eng
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  • 关键词

    Picea abies (L.) H. Karst.; B chromosomes; Western Rhodopes; Bulgaria;

    机译：云杉云杉（L.）H.Karst。 B染色体;西罗多彼州;保加利亚;

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