Chironomus acerbiphilus Tocunaga

Michailova, Paraskeva, 2024, Markers in the polytene chromosomes of freshwater Chironomus Meigen (Diptera, Chironomidae) species, Zootaxa 5453 (4), pp. 511-537 : 525

Chironomus acerbiphilus Tocunaga

The chromosome set is 2n = 8. Chromosome AE is submetacentric, chromosomes CD and BF are metacentric and chromosome G is telocentric ( Fig.13 ). The centromere regions of all chromosomes are formed of large bands which look like a block of dark bands. Chromosome arm A has well developed NOR, while chromosome G has one BR. On both sides of the BR in chromosome G there are several dark bands which can be used for identification of the species. The species is a synonym of C. crassimanus ( Barna et al. 2010) . Nineteen individuals were studied.

Collection sites: Plovdiv: fish pool, Sofia: South Park , Plovdiv: Mariza River .

Figures

FIGURE 13. Polytene chromosomes of Chironomus acerbiphilus. The numbers on the chromosome arms indicate the “basic”sequences.The large arrows show the localization of the centromere region. The small arrow on chromosome G indicates the marker sequences required for species identification. BR—Balbiani Ring, NOR—Nuclear Organizer Region. A, B, C, D, E, F, G—arms of the chromosomes. Scale bar, 10µm.