Structure analysis of two Toxoplasma gondii and Neospora caninum satellite DNA families and evolution of their common monomeric sequence

A family of repetitive DNA elements of approximately 350 bp - Sat350 - that are members of Toxoplasma gondii satellite DNA was further analyzed. Sequence analysis identified at least three distinct repeat types within this family, called types A, B, and C. B repeats were divided into the subtypes B1...

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Autores principales: Clemente, M., De Miguel, N., Lia, V.V., Matrajt, M., Angel, S.O.
Formato: JOUR
Materias:
EST
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222844_v58_n5_p557_Clemente
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spelling todo:paper_00222844_v58_n5_p557_Clemente2023-10-03T14:30:25Z Structure analysis of two Toxoplasma gondii and Neospora caninum satellite DNA families and evolution of their common monomeric sequence Clemente, M. De Miguel, N. Lia, V.V. Matrajt, M. Angel, S.O. EST Heterochromatin Neospora caninum Satellite DNA Tandem repeat Toxoplasma gondii monomer primer DNA repetitive DNA satellite DNA article controlled study correlation analysis data base DNA flanking region DNA sequence gene amplification gene expression gene identification gene structure genetic analysis genetic conservation genome molecular evolution molecular phylogeny multigene family Neospora caninum nonhuman nucleotide sequence polymerase chain reaction protein assembly sequence analysis Southern blotting structure analysis telomere Toxoplasma gondii Animals Bacteriophages Cloning, Molecular Contig Mapping DNA, Satellite Evolution, Molecular Expressed Sequence Tags Neospora Phylogeny Sequence Alignment Sequence Analysis, DNA Toxoplasma Neospora caninum Protozoa Toxoplasma Toxoplasma gondii A family of repetitive DNA elements of approximately 350 bp - Sat350 - that are members of Toxoplasma gondii satellite DNA was further analyzed. Sequence analysis identified at least three distinct repeat types within this family, called types A, B, and C. B repeats were divided into the subtypes B1 and B2. A search for internal repetitions within this family permitted the identification of conserved regions and the design of PCR primers that amplify almost all these repetitive elements. These primers amplified the expected 350-bp repeats and a novel 680-bp repetitive element (Sat680) related to this family. Two additional tandemly repeated high-order structures corresponding to this satellite DNA family were found by searching the Toxoplasma genome database with these sequences. These studies were confirmed by sequence analysis and identified: (1) an arrangement of AB1CB2 350-bp repeats and (2) an arrangement of two 350-bp-like repeats, resulting in a 680-bp monomer. Sequence comparison and phylogenetic analysis indicated that both high-order structures may have originated from the same ancestral 350-bp repeat. PCR amplification, sequence analysis and Southern blot showed that similar high-order structures were also found in the Toxoplasma-sister taxon Neospora caninum. The Toxoplasma genome database (http://ToxoDB.org) permitted the assembly of a contig harboring Sat350 elements at one end and a long nonrepetitive DNA sequence flanking this satellite DNA. The region bordering the Sat350 repeats contained two differentially expressed sequence-related regions and interstitial telomeric sequences. Fil:Clemente, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lia, V.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Matrajt, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Angel, S.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222844_v58_n5_p557_Clemente
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic EST
Heterochromatin
Neospora caninum
Satellite DNA
Tandem repeat
Toxoplasma gondii
monomer
primer DNA
repetitive DNA
satellite DNA
article
controlled study
correlation analysis
data base
DNA flanking region
DNA sequence
gene amplification
gene expression
gene identification
gene structure
genetic analysis
genetic conservation
genome
molecular evolution
molecular phylogeny
multigene family
Neospora caninum
nonhuman
nucleotide sequence
polymerase chain reaction
protein assembly
sequence analysis
Southern blotting
structure analysis
telomere
Toxoplasma gondii
Animals
Bacteriophages
Cloning, Molecular
Contig Mapping
DNA, Satellite
Evolution, Molecular
Expressed Sequence Tags
Neospora
Phylogeny
Sequence Alignment
Sequence Analysis, DNA
Toxoplasma
Neospora caninum
Protozoa
Toxoplasma
Toxoplasma gondii
spellingShingle EST
Heterochromatin
Neospora caninum
Satellite DNA
Tandem repeat
Toxoplasma gondii
monomer
primer DNA
repetitive DNA
satellite DNA
article
controlled study
correlation analysis
data base
DNA flanking region
DNA sequence
gene amplification
gene expression
gene identification
gene structure
genetic analysis
genetic conservation
genome
molecular evolution
molecular phylogeny
multigene family
Neospora caninum
nonhuman
nucleotide sequence
polymerase chain reaction
protein assembly
sequence analysis
Southern blotting
structure analysis
telomere
Toxoplasma gondii
Animals
Bacteriophages
Cloning, Molecular
Contig Mapping
DNA, Satellite
Evolution, Molecular
Expressed Sequence Tags
Neospora
Phylogeny
Sequence Alignment
Sequence Analysis, DNA
Toxoplasma
Neospora caninum
Protozoa
Toxoplasma
Toxoplasma gondii
Clemente, M.
De Miguel, N.
Lia, V.V.
Matrajt, M.
Angel, S.O.
Structure analysis of two Toxoplasma gondii and Neospora caninum satellite DNA families and evolution of their common monomeric sequence
topic_facet EST
Heterochromatin
Neospora caninum
Satellite DNA
Tandem repeat
Toxoplasma gondii
monomer
primer DNA
repetitive DNA
satellite DNA
article
controlled study
correlation analysis
data base
DNA flanking region
DNA sequence
gene amplification
gene expression
gene identification
gene structure
genetic analysis
genetic conservation
genome
molecular evolution
molecular phylogeny
multigene family
Neospora caninum
nonhuman
nucleotide sequence
polymerase chain reaction
protein assembly
sequence analysis
Southern blotting
structure analysis
telomere
Toxoplasma gondii
Animals
Bacteriophages
Cloning, Molecular
Contig Mapping
DNA, Satellite
Evolution, Molecular
Expressed Sequence Tags
Neospora
Phylogeny
Sequence Alignment
Sequence Analysis, DNA
Toxoplasma
Neospora caninum
Protozoa
Toxoplasma
Toxoplasma gondii
description A family of repetitive DNA elements of approximately 350 bp - Sat350 - that are members of Toxoplasma gondii satellite DNA was further analyzed. Sequence analysis identified at least three distinct repeat types within this family, called types A, B, and C. B repeats were divided into the subtypes B1 and B2. A search for internal repetitions within this family permitted the identification of conserved regions and the design of PCR primers that amplify almost all these repetitive elements. These primers amplified the expected 350-bp repeats and a novel 680-bp repetitive element (Sat680) related to this family. Two additional tandemly repeated high-order structures corresponding to this satellite DNA family were found by searching the Toxoplasma genome database with these sequences. These studies were confirmed by sequence analysis and identified: (1) an arrangement of AB1CB2 350-bp repeats and (2) an arrangement of two 350-bp-like repeats, resulting in a 680-bp monomer. Sequence comparison and phylogenetic analysis indicated that both high-order structures may have originated from the same ancestral 350-bp repeat. PCR amplification, sequence analysis and Southern blot showed that similar high-order structures were also found in the Toxoplasma-sister taxon Neospora caninum. The Toxoplasma genome database (http://ToxoDB.org) permitted the assembly of a contig harboring Sat350 elements at one end and a long nonrepetitive DNA sequence flanking this satellite DNA. The region bordering the Sat350 repeats contained two differentially expressed sequence-related regions and interstitial telomeric sequences.
format JOUR
author Clemente, M.
De Miguel, N.
Lia, V.V.
Matrajt, M.
Angel, S.O.
author_facet Clemente, M.
De Miguel, N.
Lia, V.V.
Matrajt, M.
Angel, S.O.
author_sort Clemente, M.
title Structure analysis of two Toxoplasma gondii and Neospora caninum satellite DNA families and evolution of their common monomeric sequence
title_short Structure analysis of two Toxoplasma gondii and Neospora caninum satellite DNA families and evolution of their common monomeric sequence
title_full Structure analysis of two Toxoplasma gondii and Neospora caninum satellite DNA families and evolution of their common monomeric sequence
title_fullStr Structure analysis of two Toxoplasma gondii and Neospora caninum satellite DNA families and evolution of their common monomeric sequence
title_full_unstemmed Structure analysis of two Toxoplasma gondii and Neospora caninum satellite DNA families and evolution of their common monomeric sequence
title_sort structure analysis of two toxoplasma gondii and neospora caninum satellite dna families and evolution of their common monomeric sequence
url http://hdl.handle.net/20.500.12110/paper_00222844_v58_n5_p557_Clemente
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