More than one way to evolve a weed: parallel evolution of US weedy rice through independent genetic mechanisms

Many different crop species were selected for a common suite of ‘domestication traits’, which facilitates their use for studies of parallel evolution. Within domesticated rice (Oryza sativa), there has also been independent evolution of weedy strains from different cultivated varieties. This makes i...

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Bibliographic Details
Published in:Molecular ecology 2015-07, Vol.24 (13), p.3329-3344
Main Authors: Qi, Xinshuai, Liu, Yan, Vigueira, Cynthia C., Young, Nelson D., Caicedo, Ana L., Jia, Yulin, Gealy, David R., Olsen, Kenneth M.
Format: Article
Language:English
Subjects:
agricultural weeds
Chromosome Mapping
Crop science
Crops, Agricultural - genetics
de-domestication
DNA, Plant - genetics
Evolution, Molecular
Genetic diversity
Genetic Linkage
Genetic Variation
Genotype
Inbreeding
Oryza - genetics
Oryza sativa
parallel evolution
Phenotype
Plant Weeds - genetics
QTL mapping
Quantitative Trait Loci
Rice
Sequence Analysis, DNA
United States
Weeds
weedy rice
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Summary:Many different crop species were selected for a common suite of ‘domestication traits’, which facilitates their use for studies of parallel evolution. Within domesticated rice (Oryza sativa), there has also been independent evolution of weedy strains from different cultivated varieties. This makes it possible to examine the genetic basis of parallel weed evolution and the extent to which this process occurs through shared genetic mechanisms. We performed comparative QTL mapping of weediness traits using two recombinant inbred line populations derived from crosses between an indica crop variety and representatives of each of the two independently evolved weed strains found in US rice fields, strawhull (S) and blackhull awned (B). Genotyping‐by‐sequencing provided dense marker coverage for linkage map construction (average marker interval
ISSN:0962-1083
1365-294X
DOI:10.1111/mec.13256