PMID- 24130444
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20131016
LR  - 20211021
IS  - 1415-4757 (Print)
IS  - 1678-4685 (Electronic)
IS  - 1415-4757 (Linking)
VI  - 36
IP  - 3
DP  - 2013 Sep
TI  - Characterization of Brazilian accessions of wild Arachis species of section 
      Arachis (Fabaceae) using heterochromatin detection and fluorescence in situ 
      hybridization (FISH).
PG  - 364-70
LID - 10.1590/S1415-47572013000300011 [doi]
AB  - The cytogenetic characterization of Arachis species is useful for assessing the 
      genomes present in this genus, for establishing the relationship among their 
      representatives and for understanding the variability in the available germplasm. 
      In this study, we used fluorescence in situ hybridization (FISH) to examine the 
      distribution patterns of heterochromatin and rDNA genes in 12 Brazilian 
      accessions of five species of the taxonomic section Arachis. The heterochromatic 
      pattern varied considerably among the species: complements with centromeric bands 
      in all of the chromosomes (A. hoehnei) and complements completely devoid of 
      heterochromatin (A. gregoryi, A. magna) were observed. The number of 45S rDNA 
      loci ranged from two (A. gregoryi) to eight (A. glandulifera), while the number 
      of 5S rDNA loci was more conserved and varied from two (in most species) to four 
      (A. hoehnei). In some species one pair of 5S rDNA loci was observed adjacent to 
      45S rDNA loci. The chromosomal markers revealed polymorphism in the three species 
      with more than one accession (A. gregoryi, A. magna and A. valida) that were 
      tested. The previous genome assignment for each of the species studied was 
      confirmed, except for A. hoehnei. The intraspecific variability observed here 
      suggests that an exhaustive cytogenetic and taxonomic analysis is still needed 
      for some Arachis species.
FAU - Custodio, Adriana Regina
AU  - Custodio AR
AD  - Programa de Pos-Graduacao em Recursos Geneticos Vegetais, Centro de Ciencias 
      Agrarias, Universidade Federal de Santa Catarina, Florianopolis, SC, Brazil . ; 
      Embrapa Genetic Resources and Biotechnology, Brasilia, DF, Brazil .
FAU - Seijo, Guillermo
AU  - Seijo G
FAU - Valls, Jose Francisco Montenegro
AU  - Valls JF
LA  - eng
PT  - Journal Article
DEP - 20130830
PL  - Brazil
TA  - Genet Mol Biol
JT  - Genetics and molecular biology
JID - 100883590
PMC - PMC3795162
OTO - NOTNLM
OT  - Brazil
OT  - Crop wild relatives
OT  - groundnut
OT  - rDNA loci
EDAT- 2013/10/17 06:00
MHDA- 2013/10/17 06:01
PMCR- 2013/09/01
CRDT- 2013/10/17 06:00
PHST- 2012/10/12 00:00 [received]
PHST- 2013/04/18 00:00 [accepted]
PHST- 2013/10/17 06:00 [entrez]
PHST- 2013/10/17 06:00 [pubmed]
PHST- 2013/10/17 06:01 [medline]
PHST- 2013/09/01 00:00 [pmc-release]
AID - 2012-313 [pii]
AID - 10.1590/S1415-47572013000300011 [doi]
PST - ppublish
SO  - Genet Mol Biol. 2013 Sep;36(3):364-70. doi: 10.1590/S1415-47572013000300011. Epub 
      2013 Aug 30.