PMID- 21637581
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20121004
LR  - 20220309
IS  - 1678-4685 (Electronic)
IS  - 1415-4757 (Print)
IS  - 1415-4757 (Linking)
VI  - 33
IP  - 4
DP  - 2010 Oct
TI  - Genome re-assignment of Arachis trinitensis (Sect. Arachis, Leguminosae) and its 
      implications for the genetic origin of cultivated peanut.
PG  - 714-8
LID - 10.1590/S1415-47572010005000079 [doi]
AB  - The karyotype structure of Arachis trinitensis was studied by conventional 
      Feulgen staining, CMA/DAPI banding and rDNA loci detection by fluorescence in 
      situ hybridization (FISH) in order to establish its genome status and test the 
      hypothesis that this species is a genome donor of cultivated peanut. Conventional 
      staining revealed that the karyotype lacked the small "A chromosomes" 
      characteristic of the A genome. In agreement with this, chromosomal banding 
      showed that none of the chromosomes had the large centromeric bands expected for 
      A chromosomes. FISH revealed one pair each of 5S and 45S rDNA loci, located in 
      different medium-sized metacentric chromosomes. Collectively, these results 
      suggest that A. trinitensis should be removed from the A genome and be considered 
      as a B or non-A genome species. The pattern of heterochromatic bands and rDNA 
      loci of A. trinitensis differ markedly from any of the complements of A. 
      hypogaea, suggesting that the former species is unlikely to be one of the wild 
      diploid progenitors of the latter.
FAU - Robledo, German
AU  - Robledo G
AD  - Instituto de Botanica del Nordeste, Corrientes Argentina.
FAU - Lavia, Graciela I
AU  - Lavia GI
FAU - Seijo, Guillermo
AU  - Seijo G
LA  - eng
PT  - Journal Article
DEP - 20101201
PL  - Brazil
TA  - Genet Mol Biol
JT  - Genetics and molecular biology
JID - 100883590
PMC - PMC3036135
OTO - NOTNLM
OT  - CMA/DAPI bands
OT  - genome donors
OT  - peanut genetic origin
OT  - rDNA loci
EDAT- 2011/06/04 06:00
MHDA- 2011/06/04 06:01
PMCR- 2010/10/01
CRDT- 2011/06/04 06:00
PHST- 2009/10/20 00:00 [received]
PHST- 2010/05/20 00:00 [accepted]
PHST- 2011/06/04 06:00 [entrez]
PHST- 2011/06/04 06:00 [pubmed]
PHST- 2011/06/04 06:01 [medline]
PHST- 2010/10/01 00:00 [pmc-release]
AID - 10.1590/S1415-47572010005000079 [doi]
PST - ppublish
SO  - Genet Mol Biol. 2010 Oct;33(4):714-8. doi: 10.1590/S1415-47572010005000079. Epub 
      2010 Dec 1.