Genome size and organization in the ixodid tick Amblyomma americanum (L.)
- 1 February 1994
- journal article
- Published by Wiley in Insect Molecular Biology
- Vol. 3 (1) , 57-62
- https://doi.org/10.1111/j.1365-2583.1994.tb00151.x
Abstract
We used DNA reassociation kinetics to determine genome size and organization in the ixodid tick Amblyomma americanum. We calculated the genome size of A. americanum to be approximately 1.08 pg or 1.04 × 109 base pairs and to consist of 35.8% unique DNA, 4.2% foldback sequences, 17.9% highly repetitive sequences, and 42.1% moderately repetitive sequences. Comparison of the reassociation kinetics of long and short fragments revealed repetitive sequences to be distributed in a pattern of long period interspersion, a feature that, to date, has been associated with arthropod genomes that lack a high percentage of repetitive DNA.Keywords
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