| In the Rock Wren, the W chromosome is metacentric, whereas that of the Canyon Wren appears to be telocentric. |
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| Stable telocentric chromosomes formed by spontaneous misdivision in Nigella doerfleri. |
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| Chromosomes were classified into metacentric, sub-metacentric, sub-telocentric and telocentric following the method of Levan et al. |
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| Females of the three species show a chromosome complement of 44 telocentric chromosomes, with a similar karyotype. |
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| In each of these, the fundamental number is double the diploid number because no telocentric chromosomes were observed. |
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