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MARCHE GENOME [2 records]
Record 1 - internal organization data 2012-09-12
Record 1, English
Record 1, Subject field(s)
- Genetics
Record 1, Main entry term, English
- chromosome walking
1, record 1, English, chromosome%20walking
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Sequential isolation of overlapping molecular clones in order to span large intervals on the chromosome. 2, record 1, English, - chromosome%20walking
Record number: 1, Textual support number: 1 OBS
The technique depends on isolating a small segment of DNA from one end of the first recombinant and using this piece of DNA as a probe to rescreen the phage or cosmid library in order to obtain a recombinant containing that piece of DNA and the next portion of the genome. The second recombinant is used to obtain a third, and so on, to yield a set of overlapping cloned segments. 2, record 1, English, - chromosome%20walking
Record 1, French
Record 1, Domaine(s)
- Génétique
Record 1, Main entry term, French
- marche le long d'un chromosome
1, record 1, French, marche%20le%20long%20d%27un%20chromosome
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- marche sur le génome 2, record 1, French, marche%20sur%20le%20g%C3%A9nome
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Technique d'analyse de la structure des chromosomes. 3, record 1, French, - marche%20le%20long%20d%27un%20chromosome
Record number: 1, Textual support number: 1 OBS
On ne peut pas cloner directement de longues séquences d'ADN mais on peut pratiquer une série de clonages successifs de fragments d'ADN en allant d'une extrémité d'un chromosome à l'autre. Pour cela, on prépare une première sonde qu'on utilise pour séparer, dans la bibliothèque de restriction du chromosome, plusieurs séquences d'ADN-complémentaire qui se recouvrent partiellement. On choisit une de ces sondes pour répéter l'opération. Elles sont utilisées pour trouver de nouveaux fragments de restriction du chromosome et ainsi de suite. En clonant chaque fois le segment de restriction désigné par la sonde, et en utilisant des endonucléases de restriction variées, on parcourt le chromosome d'un bout à l'autre. 3, record 1, French, - marche%20le%20long%20d%27un%20chromosome
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Genética
Record 1, Main entry term, Spanish
- paseo cromosómico
1, record 1, Spanish, paseo%20cromos%C3%B3mico
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Estrategia para cartografiar o secuenciar un segmento cromosómico y para la clonación posicional. 1, record 1, Spanish, - paseo%20cromos%C3%B3mico
Record number: 1, Textual support number: 1 OBS
Consiste en generar fragmentos de restricción de tamaño grande (o clones BAC); después de sondearlos, se identifica un único punto de partida. Se sintetizan nuevas sondas complementarias a secuencias del mismo fragmento (clon BAC) contiguas al punto de partida, y se utilizan para identificar diferentes fragmentos de restricción (clones BAC) que solapan con el seleccionado como punto de partida. 1, record 1, Spanish, - paseo%20cromos%C3%B3mico
Record 2 - internal organization data 1996-09-30
Record 2, English
Record 2, Subject field(s)
- Biotechnology
- Genetics
Record 2, Main entry term, English
- walking along a chromosome
1, record 2, English, walking%20along%20a%20chromosome
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Chromosome walking, one strategy for filling in gaps, involves hybridizing a primer known sequence to a clone from an unordered genomic library and synthezing a short complementary strand (called walking along a chromosome). The complementary strand is then sequenced and its end used as the next primer for further walking; in this way the adjacent, previously unknown region is identified and sequenced. Chromosome walking is also used to locate specific genes by sequencing the chromosomal segments between markers that flank the gene of interest. 1, record 2, English, - walking%20along%20a%20chromosome
Record 2, French
Record 2, Domaine(s)
- Biotechnologie
- Génétique
Record 2, Main entry term, French
- marche sur le génome
1, record 2, French, marche%20sur%20le%20g%C3%A9nome
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Isolement séquentiel des clones dont les extrémités se chevauchent. Permet de progresser de proche en proche sur le DNA génomique à partir d'une séquence clonée initiale, dans un sens ou dans l'autre. 1, record 2, French, - marche%20sur%20le%20g%C3%A9nome
Record 2, Spanish
Record 2, Textual support, Spanish
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