Sentences with phrase «unusual karyotypes»
Recent data published in the international journal Comparative Cytogenetics by Mauro Mandrioli, Federica Zanasi and Gian Carlo Manicardi of the University of Modena and Reggio Emilia (Italy) clearly showed that populations of the green peach aphid Myzus persicae (one of the most dangerous pest crop insects in the world) may have unusual karyotypes due to chromosomal fragmentations and / or rearrangements also within the same individual.
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It is therefore intriguing that this species preserved its morphological identity through time and across a wide geographical scale despite the presence of several populations with unusual karyotypes.