Marker-assisted selection
1993; Wiley; Linguagem: Inglês
10.1007/978-94-011-1524-7_20
ISSN1439-0523
AutoresPere Arús, Jesús Moreno‐González,
Tópico(s)Wheat and Barley Genetics and Pathology
ResumoThe use of polymorphic single genes to facilitate the process of plant breeding was proposed early in this Century (Sax, 1923). The basic principle is that selection for characters with easily detectable phenotypes can simplify the recovery of genes of interest linked to them and more difficult to score. The first marker loci available were those that have an obvious impact on the morphology of the plant. Genes that affect form, coloration, male sterility or disease resistance among others have been genetically analysed in many plant species. In some well characterized crops like maize, tomato, pea, barley or wheat, tens or even hundreds of such genes have been assigned to different chromosomes (O'Brien, 1990).
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