EurekaMag.com logo
+ Site Statistics
References:
53,869,633
Abstracts:
29,686,251
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Inherited and somatic cytogenetic variability in Palearctic populations of Chironomus riparius Meigen 1804 (Diptera, Chironomidae)



Inherited and somatic cytogenetic variability in Palearctic populations of Chironomus riparius Meigen 1804 (Diptera, Chironomidae)



Genome 47(2): 332-344



Inter- and intracytogenetic variability was analyzed in 13 natural Palearctic populations of Chironomus riparius Meigen 1804 (syn. Chironomus thummi) by examining hereditary and somatic aberrations (mainly inversions) of the salivary gland polytene chromosomes. In total, 77 different types of inherited inversion sequences and 184 different types of somatic inversions were found. The median percent frequency of inherited inversions was 1.4% and karyotypic divergence between populations was very low. Most hereditary inversions were endemic and always in a heterozygous state. Only six inversion sequences, each of them shared by two very distant populations, may be considered a relic of very ancient ancestral inversions. Unlike inherited inversions, occurrence of somatic aberrations seems to increase with the overall rise in the level of heavy metal pollution of the sediments from which larvae were sampled. In contrast with what occurs in populations of other chironomid species, populations of C. riparius do not seem to undergo a process of cytogenetic differentiation.

(PDF emailed within 0-6 h: $19.90)

Accession: 012213923

Download citation: RISBibTeXText

PMID: 15060586

DOI: 10.1139/g03-128



Related references

About the possible repercussions of the presence of deformities on the life cycle of Chironomus riparius Meigen, 1804 Diptera, Chironomidae Sobre la posible repercusion de la presencia de deformidades en el ciclo vital de Chironomus riparius Meigen, 1804 Diptera, Chironomidae. Boletin de la Asociacion Espanola de Entomologia. junio; 231-2: 105-113, 1999

Some ontogenetic aspects of larval deformities of Chironomus riparius Meigen, 1804 Diptera, Chironomidae Algunos aspectos de la ontogenia de las deformidades larvarias de Chironomus riparius Meigen, 1804 Diptera, Chironomidae. Limnetica, 17: 65-69, 1999

Assessment of the environmental stress in different Galician freshwater ecosystems by means of the study of Chironomus riparius Meigen, 1804 larval deformities Diptera, Chironomidae Evaluacion del nivel de estres ambiental en diversos ecosistemas acuaticos de Galicia, mediante el estudio de deformidades en larvas de Chironomus riparius Meigen, 1804 Diptera, Chironomidae. NACC Bioloxia. 1997( ); 8: 271-280, 1998

Cytogenetic characteristics of a population of Chironomus riparius Meigen 1804 (Diptera, Chironomidae) from a polluted Po river station. Genetica (Dordrecht). October; 982: 161-178, 1996

Effect of environmental pollution on the chromosomal variability of Chironomus riparius Meigen 1804 (Diptera, Chironomidae) larvae from two Piedmont stations. Genetica 108(2): 171-180, 2000

Effect of environmental pollution on the chromosomal variability of Chironomus riparius Meigen 1804 (Diptera, Chironomidae) larvae from two Piedmont stations. Genetica 108(2): 171-180, 2001

Comparative cytogenetic variability of polytene chromosomes from salivary glands of Chironomus riparius Mg., 1804 (Diptera, Chironomidae) from two polluted biotopes in Bulgaria and Russia. Genetika 40(1): 49-58, 2004

Cytogenetic characteristics of different populations of Chironomus riparius Meigen, 1804. Internationale Vereinigung fuer Theoretische und Angewandte Limnologie Verhandlungen, 274: 2363-2366, 2001

Genotoxic effects of chromium on polytene chromosomes of Chironomus riparius Meigen 1804 (Diptera, Chironomidae). Caryologia 54(1): 59-71, 2001

Ontogeny of individual asymmetries in several traits of larval Chironomus riparius Meigen, 1804 (Diptera, Chironomidae). Canadian Journal of Zoology 80(8): 1470-1479, 2002

Incidence and causes of deformities in recently hatched larvae of Chironomus riparius Meigen, 1804 (Diptera, Chironomidae). Archiv fur Hydrobiologie 149(3): 387-401, 2000

About the possible repercussions of the presence of deformities on the life cycle of Chironomus riparius Meigen, 1804 (Diptera, Chironomidae). Boletin de la Asociacion Espanola de Entomologia 23(1-2): 105-113, 1999

Seasonal and interannual variations in the frequency and severity of deformities in larvae of Chironomus riparius (Meigen, 1804) and Prodiamesa olivacea (Meigen, 1818) (Diptera, Chironomidae) collected in a polluted site. Environmental Monitoring and Assessment 64(3): 617-626, 2000

Sobre la posible repercusion de la presencia de deformidades en el ciclo vital de Chironomus riparius Meigen, 1804 (Diptera, Chironomidae). 1999

Monitoring deformities of Chironomus riparius Meigen, 1804 (Diptera, Chironomidae) larvae from first to fourth instar: a potential tool for investigating their origin. Archiv fur Hydrobiologie 154(3): 447-460, 2002