PMID- 18791232
OWN - NLM
STAT- MEDLINE
DCOM- 20090206
LR  - 20221207
IS  - 0016-6731 (Print)
IS  - 0016-6731 (Linking)
VI  - 180
IP  - 3
DP  - 2008 Nov
TI  - Chromatin structure and physical mapping of chromosome 6 of potato and 
      comparative analyses with tomato.
PG  - 1307-17
LID - 10.1534/genetics.108.093179 [doi]
AB  - Potato (Solanum tuberosum) has the densest genetic linkage map and one of the 
      earliest established cytogenetic maps among all plant species. However, there has 
      been limited effort to integrate these maps. Here, we report fluorescence in situ 
      hybridization (FISH) mapping of 30 genetic marker-anchored bacterial artificial 
      chromosome (BAC) clones on the pachytene chromosome 6 of potato. The FISH mapping 
      results allowed us to define the genetic positions of the centromere and the 
      pericentromeric heterochromatin and to relate chromatin structure to the 
      distribution of recombination along the chromosome. A drastic reduction of 
      recombination was associated with the pericentromeric heterochromatin that 
      accounts for approximately 28% of the physical length of the pachytene 
      chromosome. The pachytene chromosomes 6 of potato and tomato (S. lycopersicum) 
      share a similar morphology. However, distinct differences of heterochromatin 
      distribution were observed between the two chromosomes. FISH mapping of several 
      potato BACs on tomato pachytene chromosome 6 revealed an overall colinearity 
      between the two chromosomes. A chromosome inversion was observed in the 
      euchromatic region of the short arms. These results show that the potato and 
      tomato genomes contain more chromosomal rearrangements than those reported 
      previously on the basis of comparative genetic linkage mapping.
FAU - Iovene, Marina
AU  - Iovene M
AD  - Department of Horticulture, University of Wisconsin, Madison, Wisconsin 53706, 
      USA.
FAU - Wielgus, Susan M
AU  - Wielgus SM
FAU - Simon, Philipp W
AU  - Simon PW
FAU - Buell, C Robin
AU  - Buell CR
FAU - Jiang, Jiming
AU  - Jiang J
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20080914
PL  - United States
TA  - Genetics
JT  - Genetics
JID - 0374636
RN  - 0 (Chromatin)
RN  - 0 (DNA, Plant)
RN  - 0 (Genetic Markers)
RN  - 0 (Heterochromatin)
SB  - IM
MH  - Centromere
MH  - Chromatin/*genetics
MH  - Chromosomes, Artificial, Bacterial
MH  - Chromosomes, Plant/*genetics
MH  - DNA, Plant/genetics
MH  - Genetic Markers
MH  - Genome, Plant
MH  - Heterochromatin
MH  - In Situ Hybridization, Fluorescence/methods
MH  - Solanum lycopersicum/*genetics
MH  - Physical Chromosome Mapping/*methods
MH  - Recombination, Genetic
MH  - Solanum tuberosum/*genetics
PMC - PMC2581936
EDAT- 2008/09/16 09:00
MHDA- 2009/02/07 09:00
PMCR- 2009/02/01
CRDT- 2008/09/16 09:00
PHST- 2008/09/16 09:00 [pubmed]
PHST- 2009/02/07 09:00 [medline]
PHST- 2008/09/16 09:00 [entrez]
PHST- 2009/02/01 00:00 [pmc-release]
AID - genetics.108.093179 [pii]
AID - gen18031307 [pii]
AID - 10.1534/genetics.108.093179 [doi]
PST - ppublish
SO  - Genetics. 2008 Nov;180(3):1307-17. doi: 10.1534/genetics.108.093179. Epub 2008 
      Sep 14.