PMID- 16825771
OWN - NLM
STAT- MEDLINE
DCOM- 20060728
LR  - 20060707
IS  - 1424-859X (Electronic)
IS  - 1424-8581 (Linking)
VI  - 114
IP  - 2
DP  - 2006
TI  - Differentiating sex chromosomes of the dioecious Spinacia oleracea L. (spinach) 
      by FISH of 45S rDNA.
PG  - 175-7
AB  - Spinacia oleracea L. (spinach) is a dioecious species with both male and female 
      plants having 2n = 2x = 12 chromosomes, consisting of two large metacentrics, two 
      long subtelocentrics, two short subtelocentrics, two acrocentrics, and four 
      submetacentrics. The location of 45S rDNA was investigated on metaphase 
      chromosomes using fluorescence in situ hybridization (FISH). The numbers of 45S 
      rDNA foci in diploid sets of chromosomes from females was six and from males was 
      five. All the fluorescent foci lay in secondary constrictions and the satellites. 
      Our results indicate that an XY-type sex chromosome system could be present in 
      spinach where the Y chromosome lacks a 45S RNA focus.
CI  - Copyright (c) 2006 S. Karger AG, Basel.
FAU - Lan, T
AU  - Lan T
AD  - Laboratory of Chromosome Research, College of Life Sciences, Nankai University, 
      Tianjin, PR China.
FAU - Zhang, S
AU  - Zhang S
FAU - Liu, B
AU  - Liu B
FAU - Li, X
AU  - Li X
FAU - Chen, R
AU  - Chen R
FAU - Song, W
AU  - Song W
LA  - eng
PT  - Journal Article
PL  - Switzerland
TA  - Cytogenet Genome Res
JT  - Cytogenetic and genome research
JID - 101142708
RN  - 0 (DNA, Plant)
RN  - 0 (DNA, Ribosomal)
RN  - 0 (RNA, Ribosomal)
RN  - 0 (RNA, ribosomal, 45S)
SB  - IM
MH  - Chromosomes, Plant/*genetics
MH  - DNA, Plant/*genetics
MH  - DNA, Ribosomal/*genetics
MH  - *In Situ Hybridization, Fluorescence
MH  - Karyotyping
MH  - RNA, Ribosomal/*genetics
MH  - Sex Chromosomes/*genetics
MH  - Spinacia oleracea/*genetics
EDAT- 2006/07/11 09:00
MHDA- 2006/07/29 09:00
CRDT- 2006/07/11 09:00
PHST- 2005/08/17 00:00 [received]
PHST- 2005/11/29 00:00 [accepted]
PHST- 2006/07/11 09:00 [pubmed]
PHST- 2006/07/29 09:00 [medline]
PHST- 2006/07/11 09:00 [entrez]
AID - 93335 [pii]
AID - 10.1159/000093335 [doi]
PST - ppublish
SO  - Cytogenet Genome Res. 2006;114(2):175-7. doi: 10.1159/000093335.