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Holocentric chromosome behaviour inCuscuta (Cuscutaceae)

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Abstract

The present study demonstrates thatCuscuta babylonica Choisy has holocentric chromosomes. Evidence for this phenomenon comes from three different observations. (1) Mitosis: During metaphase and anaphase the sister-chromatids are situated parallel to the equatorial plane with no sign of localized kinetochore activity. (2) Inverted meiosis in microsporocytes. (3) X-rayed microsporocytes, in which the numerous chromosome fragments do not show any lagging or formation of micronuclei. We assume that only one out of the three subgenera inCuscuta, namely subg.Cuscuta, has holocentric chromosomes, while the two other subgenera have monocentric chromosomes.

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Authors and Affiliations

  1. Department of Botany, Institute of Life Sciences, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel

    Batia Pazy & Uzi Plitmann

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  1. Batia Pazy
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  2. Uzi Plitmann
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Pazy, B., Plitmann, U. Holocentric chromosome behaviour inCuscuta (Cuscutaceae). Pl Syst Evol 191, 105–109 (1994). https://doi.org/10.1007/BF00985345

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  • DOI: https://doi.org/10.1007/BF00985345

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