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Karyotypical characteristics of two allopatric African populations of anhydrobiotic Polypedilum Kieffer, 1912 (Diptera, Chironomidae) originating from Nigeria and Malawi.

Abstract：

:The African chironomid Polypedilumvanderplanki Hinton, 1951 is the only chironomid able to withstand almost complete desiccation in an ametabolic state known as anhydrobiosis. The karyotypes of two allopatric populations of this anhydrobiotic chironomid, one from Nigeria and another from Malawi, were described according to the polytene giant chromosomes. The karyotype from the Nigerian population was presented as the reference chromosome map for Polypedilumvanderplanki. Both populations, Nigerian and Malawian, showed the same number of chromosomes (2n=8), but important differences were found in the band sequences of polytene chromosomes, and in the number and the arrangement of active regions between the two populations. Such important differences raise the possibility that the Malawian population could constitute a distinct new species of anhydrobiotic chironomid.

journal_name

Comp Cytogenet

journal_title

Comparative cytogenetics

authors

Petrova NA,Cornette R,Shimura S,Gusev OA,Pemba D,Kikawada T,Zhirov SV,Okuda T

doi

10.3897/CompCytogen.v9i2.9104

subject

Has Abstract

pub_date

2015-05-11 00:00:00

pages

173-88

issue

2

eissn

1993-0771

issn

1993-078X

journal_volume

9

pub_type

杂志文章

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