PMID- 10783532
OWN - NLM
STAT- MEDLINE
DCOM- 20000515
LR  - 20190607
IS  - 0018-0661 (Print)
IS  - 0018-0661 (Linking)
VI  - 131
IP  - 3
DP  - 1999
TI  - Ribosomal RNA gene loci and silver-stained nucleolar organizer regions associated 
      with heterochromatin in Alaskan char Salvelinus malma and chum salmon 
      Oncorhynchus keta.
PG  - 221-5
AB  - Nucleolus-forming 5.8S, 18S and 28S ribosomal RNA gene (rDNA) loci were assigned 
      by fluorescence in situ hybridization (FISH) to the distal half of the short arms 
      of a large-sized submetacentric pair in the Alaskan char (Salvelinus malma) and 
      to the distal region of the long arms of a medium-sized submetacentric pair in 
      the chum salmon (Oncorhynchus keta), respectively. In each species, heteromorphic 
      FISH signals, spanning whole satellite region and secondary constriction, imply 
      an intraspecific variation in the size of rDNA loci. Size variation of 
      silver-stained nucleolar organizer regions (AgNORs) was also apparent between or 
      within the assigned rDNA loci in each species, suggesting a possible inter- or 
      intralocus inactivation of rDNAs. C-band positivity of assigned rDNA loci and 
      AgNORs unequivocally showed their association with heterochromatin in these 
      species.
FAU - Alonso, M
AU  - Alonso M
AD  - Laboratory of Cytogenetics, Graduate School of Environmental Earth Science, 
      Hokkaido University, Sapporo, Japan.
FAU - Fujiwara, A
AU  - Fujiwara A
FAU - Yamaha, E
AU  - Yamaha E
FAU - Kimura, S
AU  - Kimura S
FAU - Abe, S
AU  - Abe S
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Hereditas
JT  - Hereditas
JID - 0374654
RN  - 0 (Heterochromatin)
RN  - 0 (RNA, Ribosomal)
SB  - IM
MH  - Animals
MH  - Heterochromatin/genetics
MH  - In Situ Hybridization, Fluorescence
MH  - Karyotyping
MH  - Nucleolus Organizer Region
MH  - Oncorhynchus keta/*genetics
MH  - RNA, Ribosomal/genetics
MH  - Species Specificity
MH  - Trout/*genetics
EDAT- 2000/04/28 09:00
MHDA- 2000/05/20 09:00
CRDT- 2000/04/28 09:00
PHST- 2000/04/28 09:00 [pubmed]
PHST- 2000/05/20 09:00 [medline]
PHST- 2000/04/28 09:00 [entrez]
AID - 10.1111/j.1601-5223.1999.00221.x [doi]
PST - ppublish
SO  - Hereditas. 1999;131(3):221-5. doi: 10.1111/j.1601-5223.1999.00221.x.