Genotypic and morphological diversity of trematodes Leucochloridium paradoxum
The sporocysts of the trematode Leucochloridium paradoxum parasitise land snails Succinea putris . The sporocysts form broodsacs whose tegument contains green and brown pigments. The colouration changes during maturation. The pattern and colour of the broodsacs may vary in different individuals and...
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Published in | Parasitology research (1987) Vol. 122; no. 4; pp. 997 - 1007 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.04.2023
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | The sporocysts of the trematode
Leucochloridium paradoxum
parasitise land snails
Succinea putris
. The sporocysts form broodsacs whose tegument contains green and brown pigments. The colouration changes during maturation. The pattern and colour of the broodsacs may vary in different individuals and sometimes even in one sporocyst. We studied the broodsacs of 253 sporocysts of
L. paradoxum
collected in the European part of Russia and Belarus, and identified four main colouration types. An analysis of genetic polymorphism by a fragment (757 bp) of the mitochondrial
cox1
gene revealed 22 haplotypes. Using the nucleotide sequences of the
cox1
gene fragment of
L. paradoxum
from Japan and Europe available in GenBank, we constructed haplotype networks. A total of 27 haplotypes were identified. The haplotype diversity of
L. paradoxum
by this gene was rather low, on the average 0.8320. A low genotypic diversity by the mitochondrial marker is consistent with rDNA conservativeness of
Leucochloridium
spp. noted previously. The most broadly represented haplotypes, Hap_1 and Нap_3, were described in both sporocysts and adults of
L. paradoxum
. We suggest that the mobility of birds, which are the definitive hosts of
L. paradoxum
, provides the necessary conditions for the genotypic diversity of its sporocysts parasitising different populations of snails
Succinea putris
. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0932-0113 1432-1955 |
DOI: | 10.1007/s00436-023-07805-7 |