Genome size evaluations in cockroaches: new entries

Di Simon Eugster --Simon 20:19, 13 April 2006 (UTC) - Opera propria, CC BY-SA 3.0,
Submitted: 24 February 2022
Accepted: 21 March 2022
Published: 25 March 2022
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In this paper, we report genome size (GS) values for nine cockroaches (order Blattodea, families Blattidae, Blaberidae and Ectobiidae, ex Blattelidae,), three of which are original additions to the ten already present in the GS database: the death’s head roach (Blaberus craniifer), the Surinam cockroach (Pycnoscelus surinamensis) and the Madeira cockroach (Leucophaea maderae). Regarding the American cockroach (Periplaneta americana), the GS database contains two contrasting values (2.72 vs 3.41 pg); likely, the 2.72 pg value is the correct one as it is strikingly similar to our sperm DNA content evaluation (2.80 ± 0.11 pg). Also, we suggest halving the published GS of the Argentine cockroach Blaptica dubia and the spotted cockroach (the gray cockroach) Nauphoeta cinerea discussing (i) the occurrence of a correlation between increasing 2N chromosome number and GS within the order Blattodea; and (ii) the possible occurrence of a polyploidization phenomenon doubling a basic GS of 0.58 pg of some termite families (superfamily Blattoidea, epifamily Termitoidae).



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Supporting Agencies

This work was supported with a grant of Fondazione Veronesi for scientific research to MM

How to Cite

Monti, M., Redi, C., & Capanna, E. (2022). Genome size evaluations in cockroaches: new entries. European Journal of Histochemistry, 66(2).