eprintid: 9685
rev_number: 26
eprint_status: archive
userid: 1460
dir: disk0/00/00/96/85
datestamp: 2013-09-25 06:17:01
lastmod: 2016-03-07 01:01:59
status_changed: 2013-09-25 06:17:01
type: article
metadata_visibility: show
item_issues_id: similar_title_8981
item_issues_type: similar_title
item_issues_description: Similar title to 


    <span class="person_name">Межжерин, С. В.</span> and <span class="person_name">Власенко, Р. П.</span> and <span class="person_name">Гарбар, А. В.</span>
  

(2008)

<a href="http://eprints.zu.edu.ua/cgi/users/home?screen=EPrint::View&amp;eprintid=8981"><xhtml:em xmlns:xhtml="http://www.w3.org/1999/xhtml">Features of the Genetic Structure of the Earthworms Aporrectodea (Superspecies) Caliginosa (Oligochaeta: Lumbricidae) Complex in Ukraine.</xhtml:em></a>


    Cytology and Genetics, 42 (4).
     pp. 256-262.
     ISSN 0095-4527
item_issues_timestamp: 2015-08-21 14:26:16
item_issues_status: discovered
item_issues_count: 1
title: Features of the Genetic Structure of the Earthworms
Aporrectodea (Superspecies) Caliginosa (Oligochaeta:
Lumbricidae) Complex in Ukraine
language: english
abstract: An investigation of the genetic structure of the Aporrectodea caliginosa – A. trapezoids diploidpolyploid complex of earthworms found in the Ukraine is performed by means of biochemical genetic marking
with respect to six loci (Aat, Es-1, -2, -3, and -4, and Mdh) and karyotyping. All 646 individuals from 21 samples are analyzed at the biochemical gene level and karyotype samples are obtained from 70 specimens. As a
result, diploid amphimictic A. caliginosa individuals (2n = 36), which form panmictic populations, and triploid
(2n = 54) A. trapezoides individuals, represented by 19 hypothetical clones discovered in the course of an analysis of 157 specimens, are clearly differentiated. A clear trend towards dominance of the triploid forms in the
steppe zone of Ukraine is discovered. Here they represent roughly 70% as against 12% of all A. (superspecies)
caliginosa individuals in the northern forest regions. Based on the stated nature of the heterozygosity of the loci
studied and the behavior of the chromosomes in meiosis, it may be claimed that the cloned forms are allotriploids, formed as a result of hybridization of a series of related forms, which, judging from the allelic pools, does
not include amphimictic species that now inhabit the territory of Ukraine. That is, either the apomictic clones
of A. trapezoides lack a local origin and their appearance among the fauna of Ukraine is a consequence of settlement in arid steppe regions that are unfavorable for earthworms or, on the other hand, amphimictic A. caliginosa is an invasive species.
creators_name: Mezhzherіn, S. V.
creators_name: Vlasenкo, R. Р.
creators_name: Garbar, А. V.
ispublished: pub
subjects: QL
divisions: sch_eco
full_text_status: public
date: 2008
date_type: published
publication: Cytology and Genetics
volume: 42
number: 4
pagerange: 50-57
refereed: TRUE
issn: 0095-4527
citation:   Mezhzherіn, S. V., Vlasenкo, R. Р., Garbar, А. V.  (2008) Features of the Genetic Structure of the Earthworms Aporrectodea (Superspecies) Caliginosa (Oligochaeta: Lumbricidae) Complex in Ukraine.  Cytology and Genetics, 42 (4).  с. 50-57.  ISSN 0095-4527     
document_url: http://eprints.zu.edu.ua/9685/1/Caliginosa%20genetics%281%29.pdf