PMID- 22760470
OWN - NLM
STAT- MEDLINE
DCOM- 20131231
LR  - 20240504
IS  - 1460-2431 (Electronic)
IS  - 0022-0957 (Print)
IS  - 0022-0957 (Linking)
VI  - 63
IP  - 13
DP  - 2012 Aug
TI  - Interhaplotypic heterogeneity and heterochromatic features may contribute to 
      recombination suppression at the S locus in apple (Malusxdomestica).
PG  - 4983-90
LID - 10.1093/jxb/ers176 [doi]
AB  - Gametophytic self-incompatibility (GSI) is controlled by a complex S locus 
      containing the pistil determinant S-RNase and pollen determinant SFB/SLF. Tight 
      linkage of the pistil and pollen determinants is necessary to guarantee the 
      self-incompatibility (SI) function. However, multiple probable pollen 
      determinants of apple and Japanese pear, SFBBs (S locus F-box brothers), exist in 
      each S haplotype, and how these multiple genes maintain the SI function remains 
      unclear. It is shown here by high-resolution fluorescence in situ hybridization 
      (FISH) that SFBB genes of the apple S9 haplotype are physically linked to the 
      S9-RNase gene, and the S locus is located in the subtelomeric region. FISH 
      analyses also determined the relative order of SFBB genes and S-RNase in the S9 
      haplotype, and showed that gene order differs between the S9 and S3 haplotypes. 
      Furthermore, it is shown that the apple S locus is located in a knob-like large 
      heterochromatin block where DNA is highly methylated. It is proposed that 
      interhaplotypic heterogeneity and the heterochromatic nature of the S locus help 
      to suppress recombination at the S locus in apple.
FAU - Wang, Sanhong
AU  - Wang S
AD  - Graduate School of Horticulture, Chiba University, Matsudo, Chiba 271-8510, 
      Japan.
FAU - Kakui, Hiroyuki
AU  - Kakui H
FAU - Kikuchi, Shinji
AU  - Kikuchi S
FAU - Koba, Takato
AU  - Koba T
FAU - Sassa, Hidenori
AU  - Sassa H
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20120703
PL  - England
TA  - J Exp Bot
JT  - Journal of experimental botany
JID - 9882906
RN  - 0 (Euchromatin)
RN  - 0 (F-Box Proteins)
RN  - 0 (Heterochromatin)
RN  - 0 (Plant Proteins)
RN  - EC 3.1.- (Ribonucleases)
RN  - EC 3.1.4.- (ribonuclease S)
SB  - IM
MH  - Chromosomes, Artificial, Bacterial
MH  - Chromosomes, Plant/genetics
MH  - DNA Methylation
MH  - Euchromatin/genetics
MH  - F-Box Proteins/*genetics
MH  - Flowers/genetics/physiology
MH  - Genetic Heterogeneity
MH  - Genetic Linkage
MH  - Haplotypes
MH  - Heterochromatin/*genetics
MH  - In Situ Hybridization, Fluorescence
MH  - Malus/*genetics/physiology
MH  - Pachytene Stage
MH  - Plant Proteins/genetics
MH  - Recombination, Genetic/*genetics
MH  - Ribonucleases/*genetics
MH  - Self-Incompatibility in Flowering Plants/*genetics
PMC - PMC3428002
EDAT- 2012/07/05 06:00
MHDA- 2014/01/01 06:00
PMCR- 2012/07/06
CRDT- 2012/07/05 06:00
PHST- 2012/07/05 06:00 [entrez]
PHST- 2012/07/05 06:00 [pubmed]
PHST- 2014/01/01 06:00 [medline]
PHST- 2012/07/06 00:00 [pmc-release]
AID - ers176 [pii]
AID - 176 [pii]
AID - 10.1093/jxb/ers176 [doi]
PST - ppublish
SO  - J Exp Bot. 2012 Aug;63(13):4983-90. doi: 10.1093/jxb/ers176. Epub 2012 Jul 3.