NDLI: Comparative molecular cytogenetic analysis of three Leuciscus species (Pisces, Cyprinidae) using chromosome banding and FISH with rDNA

Content Provider	Springer Nature Link
Author	Boron, Alicja Porycka, Katarzyna Ito, Daisuke Abe, Syuiti Kirtiklis, Lech
Copyright Year	2008
Abstract	A comparative molecular cytogenetic analysis was performed on three species of the genus Leuciscus viz. ide L. idus, chub L. cephalus and dace L. leuciscus distributed in Poland, using C-, Ag- and chromomycin A3 (CMA3)-stainings and fluorescence in situ hybridization (FISH) with 5.8S + 28S rDNA as a probe. Although the three species examined shared 2n = 50 chromosomes and the largest acrocentric chromosome pair in the complement, they were characterized with karyotypic differences in terms of the number of uni- and biarmed chromosomes and the localization of nucleolar organizer regions (NORs) revealed by Ag-staining and FISH. L. idus and L. cephalus showed the rDNA sites on the long arms of one submetacentric (SM) chromosome pair and on the short arms of one subtelocentric (ST) chromosome pair, respectively. These NORs were CMA3-positive, GC-rich and C-positive heterochromatic sites in both species. Such chromosome banding features were also true for four NORs localizing on one of each SM and ST pair in L. leuciscus, but considerable numerical NOR polymorphism became apparent with Ag-staining and FISH due to a different combination of these NOR-bearing SMs and STs in this dace. The present results indicate that the molecular cytogenetic analysis applied herein may become useful to elucidate the karyotype evolution and phylogenetic relationships among the species in the genus Leuciscus and other related groups.
Starting Page	199
Ending Page	207
Page Count	9
File Format	PDF
ISSN	00166707
Journal	Genetica
Volume Number	135
Issue Number	2
e-ISSN	15736857
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-05-13
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chromosome banding patterns Cyprinidae Major rDNA Leuciscus Microbial Genetics and Genomics Human Genetics Plant Genetics & Genomics Animal Genetics and Genomics Life Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Animal Science and Zoology Insect Science

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