morphometric variability of clitellocephalus ophoni (eugregarinida, gregarinidae) in the intestines of harpalus rufipes (coleoptera, carabidae)
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2016
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Abstract
Clitellocephalus ophoni (Tuzet and Ormieres, 1956) Clopton, 2002, is one of
the parasites of a common ground beetle species, Harpalus rufipes (De Geer,
1774), inhabiting practically the entire temperate zone of Eurasia.
Photographs of 177 gamonts and 74 syzygies of C. ophoni from specimens of
three populations of H. rufipes collected from the countryside near
Dnipropetrovsk (Ukraine), were analyzed according to 15 linear
characteristics and 18 indices for gamonts and 6 indices for syzygies. The
coefficient of variation (CV) for the majority of linear parameters for
gamonts ranged between 28.2-71.3%. Out of 15 linear parameters, only 6 showed
a normal distribution; the others showed a statistically significant
asymmetry (the maximum indicators on the histogram of distribution were
inclined to the area of minimum value). The distribution of all 18
morphological indices diverged from the norm. Two maximum indicators were
registered in the disposition of the widest point of the protomerite and
deutomerite. The minimum CV was registered for the ratio of gamont length to
the length of its deutomerite. The size ratios of the primite and satellite
in the syzygies were more constant than the morphological indices for the
gamonts. The sex of the host does not affect the length of the protomerite
and deutomerite, but does affect their width, the disposition of the nucleus
and the widest point of the deutomerite. The length of the protomerite and
deutomerite relative to the length of the gamont is better described through
linear functions, while their width has a nonlinear dynamic and is better
described through parabolic function. The ratio of morphometric indices to
total length of C. ophoni gamonts is also better described through nonlinear
functions. The data obtained on the morphological variability of C. ophoni
needs to be compared with the results for artificially infected individuals
of other Harpalus species.
| Reference Key |
viktor2016archivesmorphometric
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|---|---|
| Authors | ;Brygadyrenko Viktor;Reshetniak Daria |
| Journal | gastrointestinal endoscopy |
| Year | 2016 |
| DOI |
10.2298/ABS150923049B
|
| URL | |
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