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    Highre-solution linkage map and chromosome-scale genome assembly for cassava (Manihot esculenta Crantz) from 10 populations

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    Date
    2015
    Author
    International Cassava Genetic Map Consortium
    Type
    Journal Article
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    Abstract/Description
    Cassava (Manihot esculenta Crantz) is a major staple crop in Africa, Asia, and South America, and its starchy roots provide nourishment for 800 million people worldwide. Although native to South America, cassava was brought to Africa 400–500 years ago and is now widely cultivated across sub-Saharan Africa, but it is subject to biotic and abiotic stresses. To assist in the rapid identification of markers for pathogen resistance and crop traits, and to accelerate breeding programs, we generated a framework map for M. esculenta Crantz from reduced representation sequencing [genotyping-by-sequencing (GBS)]. The composite 2412-cM map integrates 10 biparental maps (comprising 3480 meioses) and organizes 22,403 genetic markers on 18 chromosomes, in agreement with the observed karyotype. We used the map to anchor 71.9% of the draft genome assembly and 90.7% of the predicted protein-coding genes. The chromosome-anchored genome sequence will be useful for breeding improvement by assisting in the rapid identification of markers linked to important traits, and in providing a framework for genomic selectionenhanced breeding of this important crop.
    https://dx.doi.org/10.1534/g3.114.015008
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/932
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1534/g3.114.015008
    IITA Subjects
    Cassava
    Agrovoc Terms
    Genetic Map; Cassava
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    G3: Genes|Genomes|Genetics
    Collections
    • Journal and Journal Articles4835
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