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A mosaic monoploid reference sequence for the highly complex genome of sugarcane
TLDR
It is shown that the two species, S. officinarum and S. spontaneum, involved in modern cultivars differ by their transposable elements and by a few large chromosomal rearrangements, explaining their distinct genome size and distinct basic chromosome numbers while also suggesting that polyploidization arose in both lineages after their divergence.
Geographical Distribution of Four Sugarcane yellow leaf virus Genotypes.
TLDR
Presence of several SCYLV genotypes in Brazil, Colombia, Guadeloupe, Mauritius, and Réunion suggests different virus introductions and/or different evolution histories of the virus after its introduction into a new environment.
Haplotype structure around Bru1 reveals a narrow genetic basis for brown rust resistance in modern sugarcane cultivars
TLDR
A strong LD in the Bru1 region and strong associations between most of the markers and rust resistance are revealed, revealing that it constitutes the main source of brown rust resistance in modern cultivars.
Variation in Infection Capacity and in Virulence Exists Between Genotypes of Sugarcane yellow leaf virus.
TLDR
Transmission of different genotypes of Sugarcane yellow leaf virus (SCYLV) to eight sugarcane cultivars differing in resistance to infection by the virus and to yellow leaf suggested an association of disease with undetectable populations of the virus or a nonviral cause.
Spread of Sugarcane yellow leaf virus in sugarcane plants and fields on the island of Réunion
TLDR
The spread of Sugarcane yellow leaf virus (SCYLV) in sugarcane plants was studied on Reunion using virus-infected cuttings from four cultivars and spatial distribution of infected plants suggested that a small window of time exists during which primary infection can occur.
Genome wide association mapping of agro-morphological and disease resistance traits in sugarcane
TLDR
The results confirm that the use of GWAS is feasible for sugarcane in spite of its complex polyploid genome but also underline the need to take into account family relatedness and not only population structure.
Low Genetic Diversity in Melanaphis sacchari Aphid Populations at the Worldwide Scale
TLDR
Assessment of the genetic diversity and structuring of populations of this species according to host and locality found that among aphids, M. sacchari has one of the lowest known rates of genetic diversity for such a wide geographical distribution.
Experimental assessment of the accuracy of genomic selection in sugarcane
TLDR
The results provide the first validation of genomic selection in sugarcane, using four statistical predictive models: bayesian LASSO, ridge regression, reproducing kernel Hilbert space, and partial least square regression.
Invasion of sorghum in the Americas by a new sugarcane aphid (Melanaphis sacchari) superclone
TLDR
The results show that the SCA outbreak in the Americas and the Caribbean observed since 2013 belong to populations exhibiting low genetic diversity and consisting of a dominant clonal lineage, MLL-F, which colonizes Sorghum spp.
Diploid/Polyploid Syntenic Shuttle Mapping and Haplotype-Specific Chromosome Walking Toward a Rust Resistance Gene (Bru1) in Highly Polyploid Sugarcane (2n ∼ 12x ∼ 115)
TLDR
This is the first attempt to isolate a gene from sugarcane by map-based cloning, targeting a durable major rust resistance gene (Bru1), and describes the genomic strategies that have developed to overcome constraints associated with high polyploidy in the successive steps of map- based cloning approaches.
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