Cytology of Tetrasomic <i>Brassica campestris</i> (2n=20+2)
نویسندگان
چکیده
منابع مشابه
Tetrasomic Segregation for Multiple Alleles in Alfalfa1
Evidence of tetrasomic inheritance in alfalfa, Medicago sativa L. and M . falcata L., for multiple codominant alleles at three isozymic loci is reported in this study. The locus Prx-I governing anodal peroxidase and the loci Lap-I and L a p 2 governing anodal leucine-aminopeptidase were studied by starch gel electrophoresis in seedling root tissue or seeds. The progenies from several di-, trior...
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The availability of reliable genetic linkage maps is crucial for functional and evolutionary genomic analyses. Established theory and methods of genetic linkage analysis have made map construction a routine exercise in diploids. However, many evolutionarily, ecologically, and/or agronomically important species are autopolyploids, with autotetraploidy being a typical example. These species under...
متن کاملConstructing genetic linkage maps under a tetrasomic model.
An international consortium has launched the whole-genome sequencing of potato, the fourth most important food crop in the world. Construction of genetic linkage maps is an inevitable step for taking advantage of the genome projects for the development of novel cultivars in the autotetraploid crop species. However, linkage analysis in autopolyploids, the kernel of linkage map construction, is t...
متن کاملThe tetrasomic for chromosome 4 in Drosophila melanogaster.
DROSOPHILA with one more or less 4th chromosome than the normal pair were first described by BRIDGES ( 1921a,b). Haplo-4 flies with only one 4th chromosome were discovered because of their obvious complex of abnormal characters. Most conspicuously they are Minute; that is they have short slender bristles. Triplo-4 flies do not differ greatly from normal flies in phenotype, but according to BRID...
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Arachis hypogaea L. (cultivated peanut) is an allotetraploid (2n = 4x = 40) with an AABB genome type. Based on cytogenetic studies it has been assumed that peanut and wild-derived induced AABB allotetraploids have classic allotetraploid genetic behavior with diploid-like disomic recombination only between homologous chromosomes, at the exclusion of recombination between homeologous chromosomes....
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ژورنال
عنوان ژورنال: CYTOLOGIA
سال: 1974
ISSN: 0011-4545,1348-7019
DOI: 10.1508/cytologia.39.253