PMID- 9886776
OWN - NLM
STAT- MEDLINE
DCOM- 19990225
LR  - 20191102
IS  - 0967-3849 (Print)
IS  - 0967-3849 (Linking)
VI  - 6
IP  - 7
DP  - 1998 Nov
TI  - Comparative analysis of crossover exchanges and chiasmata in Allium cepa x 
      fistulosum after genomic in situ hybridization (GISH).
PG  - 567-74
AB  - Genomic in situ hybridization (GISH) successfully differentiated homoeologous 
      genomes in the inter-specific hybrid Allium cepa x fistulosum, thus allowing the 
      detection of reciprocal crossover events as label exchanges in separating 
      anaphase I chromosomes. Three of the eight chromosome pairs were positively 
      identified by fluorescence in situ hybridization (FISH) to rDNA sequences. There 
      was a general similarity of the GISH-based label exchange frequencies and 
      metaphase I chiasma frequencies, but with a 20% deficit of chiasmata. Reasons for 
      this apparent deficit are discussed. The locations of chiasmata and label 
      exchanges are in broad agreement.
FAU - Stevenson, M
AU  - Stevenson M
AD  - School of Biological Sciences, The University of Birmingham, Edgbaston, UK.
FAU - Armstrong, S J
AU  - Armstrong SJ
FAU - Ford-Lloyd, B V
AU  - Ford-Lloyd BV
FAU - Jones, G H
AU  - Jones GH
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - Netherlands
TA  - Chromosome Res
JT  - Chromosome research : an international journal on the molecular, supramolecular 
      and evolutionary aspects of chromosome biology
JID - 9313452
SB  - IM
MH  - Allium/*genetics/ultrastructure
MH  - Anaphase
MH  - Crossing Over, Genetic
MH  - Hybrid Cells
MH  - *In Situ Hybridization
MH  - In Situ Hybridization, Fluorescence
MH  - Meiosis
MH  - Metaphase
EDAT- 1999/01/14 00:00
MHDA- 1999/01/14 00:01
CRDT- 1999/01/14 00:00
PHST- 1999/01/14 00:00 [pubmed]
PHST- 1999/01/14 00:01 [medline]
PHST- 1999/01/14 00:00 [entrez]
AID - 10.1023/a:1009296826942 [doi]
PST - ppublish
SO  - Chromosome Res. 1998 Nov;6(7):567-74. doi: 10.1023/a:1009296826942.