FISH Chromosome Mapping Allowing Karyotype Analysis in Medicago truncatula Lines Jemalong J5 and R-108-1

Two lines of Medicago truncatula, R-108-1 and Jemalong J5, exhibit differences in their symbiotic properties, morphological markers, and capacity for regeneration and transformation. Using cytogenetic techniques, we detected differences in chromomycin A3 staining on the two sides of the secondary co...

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Main Authors: Malika Cerbah, Zoltan Kevei, Sonja Siljak-Yakovlev, Eva Kondorosi, Adam Kondorosi, Toan Hanh Trinh
Format: Article
Language:English
Published: The American Phytopathological Society 1999-11-01
Series:Molecular Plant-Microbe Interactions
Online Access:https://apsjournals.apsnet.org/doi/10.1094/MPMI.1999.12.11.947
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author Malika Cerbah
Zoltan Kevei
Sonja Siljak-Yakovlev
Eva Kondorosi
Adam Kondorosi
Toan Hanh Trinh
author_facet Malika Cerbah
Zoltan Kevei
Sonja Siljak-Yakovlev
Eva Kondorosi
Adam Kondorosi
Toan Hanh Trinh
author_sort Malika Cerbah
collection DOAJ
description Two lines of Medicago truncatula, R-108-1 and Jemalong J5, exhibit differences in their symbiotic properties, morphological markers, and capacity for regeneration and transformation. Using cytogenetic techniques, we detected differences in chromomycin A3 staining on the two sides of the secondary constriction of the nucleolar chromosome pair of J5 and R-108-1, while DAPI (4′, 6-diamidino-2-phenylindole) staining revealed no differences between the two lines. FISH (fluorescent in situ hybridization) analysis showed a difference between J5 and R-108-1 for the same 5S rRNA genes; three loci were found in J5 but only two loci in R-108-1. However, for the 18S-5.8S-26S rDNA genes only a single locus was found in both lines. Based on these analyses, a karyotype for the two lines was established.
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spelling doaj.art-e1542d0082e0473aa8ef7cd026f16ec52022-12-22T03:02:27ZengThe American Phytopathological SocietyMolecular Plant-Microbe Interactions0894-02821943-77061999-11-01121194795010.1094/MPMI.1999.12.11.947FISH Chromosome Mapping Allowing Karyotype Analysis in Medicago truncatula Lines Jemalong J5 and R-108-1Malika CerbahZoltan KeveiSonja Siljak-YakovlevEva KondorosiAdam KondorosiToan Hanh TrinhTwo lines of Medicago truncatula, R-108-1 and Jemalong J5, exhibit differences in their symbiotic properties, morphological markers, and capacity for regeneration and transformation. Using cytogenetic techniques, we detected differences in chromomycin A3 staining on the two sides of the secondary constriction of the nucleolar chromosome pair of J5 and R-108-1, while DAPI (4′, 6-diamidino-2-phenylindole) staining revealed no differences between the two lines. FISH (fluorescent in situ hybridization) analysis showed a difference between J5 and R-108-1 for the same 5S rRNA genes; three loci were found in J5 but only two loci in R-108-1. However, for the 18S-5.8S-26S rDNA genes only a single locus was found in both lines. Based on these analyses, a karyotype for the two lines was established.https://apsjournals.apsnet.org/doi/10.1094/MPMI.1999.12.11.947
spellingShingle Malika Cerbah
Zoltan Kevei
Sonja Siljak-Yakovlev
Eva Kondorosi
Adam Kondorosi
Toan Hanh Trinh
FISH Chromosome Mapping Allowing Karyotype Analysis in Medicago truncatula Lines Jemalong J5 and R-108-1
Molecular Plant-Microbe Interactions
title FISH Chromosome Mapping Allowing Karyotype Analysis in Medicago truncatula Lines Jemalong J5 and R-108-1
title_full FISH Chromosome Mapping Allowing Karyotype Analysis in Medicago truncatula Lines Jemalong J5 and R-108-1
title_fullStr FISH Chromosome Mapping Allowing Karyotype Analysis in Medicago truncatula Lines Jemalong J5 and R-108-1
title_full_unstemmed FISH Chromosome Mapping Allowing Karyotype Analysis in Medicago truncatula Lines Jemalong J5 and R-108-1
title_short FISH Chromosome Mapping Allowing Karyotype Analysis in Medicago truncatula Lines Jemalong J5 and R-108-1
title_sort fish chromosome mapping allowing karyotype analysis in medicago truncatula lines jemalong j5 and r 108 1
url https://apsjournals.apsnet.org/doi/10.1094/MPMI.1999.12.11.947
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