Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 342703
Title Production of alien chromosome additions and their utility in plant genetics
Author(s) Chang, S.B.; Jong, J.H.S.G.M. de
Source Cytogenetic and Genome Research 109 (2005)1-3. - ISSN 1424-8581 - p. 335 - 343.
Department(s) Laboratory of Genetics
Laboratory of Plant Breeding
Publication type Refereed Article in a scientific journal
Publication year 2005
Keyword(s) beet beta-vulgaris - molecular cytogenetic analysis - carrying extra chromosomes - polymorphic dna markers - in-situ hybridization - allium-fistulosum l - oryza-sativa l - monosomic addition - complete set - tomato chromosomes
Abstract Breeding programs aiming at transferring desirable genes from one species to another through interspecific hybridization and backcrossings often produce monosomic and disomic additions as intermediate crossing products. Such aneuploids contain alien chromosomes added to the complements of the recipient parent and can be used for further introgression programs, but lack of homoeologous recombination and inevitable segregation of the alien chromosome at meiosis make them often less ideal for producing stable introgression lines. Monosomic and disomic additions can have specific morphological characteristics, but more often they need additional confirmation of molecular marker analyses and assessment by fluorescence in situ hybridization with genomic and chromosome-specific DNA as probes. Their specific genetic and cytogenetic properties make them powerful tools for fundamental research elucidating regulation of homoeologous recombination, distribution of chromosome-specific markers and repetitive DNA sequences, and regulation of heterologous gene expression. In this overview we present the major characteristics of such interspecific aneuploids highlighting their advantages and drawbacks for breeding and fundamental research
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