Microsatellite markers reveal multiple origins for Italian weedy rice

Ecology and Evolution
Annabelle GrimmFrancesco Vidotto

Abstract

Weedy rice (Oryza sativa L.) is one of the major issues of rice cultivation worldwide. In Italy, it infests about 70% of the total rice area. Different Weedy Rice populations can be distinguished based on variable morphological and physiological traits; however, little is known about genetic differentiation and origin of Italian weedy rice populations. The objective of this study was to genetically and morphologically characterize and compare different Italian weedy rice populations selected on the basis of different phenotypes. The main Italian rice territory was divided into 10 geographical areas in which 40 weedy rice populations were collected and grouped according to the awn traits. All the individuals of the populations were morphologically characterized according to plant and seed traits. Genetic characterization was performed using 19 SSR markers on all the collected accessions, and several rice cultivars, including some very old (late 19th century), nowadays are no longer cultivated. ANOVA showed that morphological plant and seed traits were significantly affected by the collection area and awnedness group. The importance of the awn morphology was also reflected in the Bayesian clustering where, despite a relatively lo...Continue Reading

References

Sep 25, 2007·Molecular Ecology·J P Londo, B A Schaal
Jun 3, 2008·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Steven A BrooksChristopher W Deren
Jun 17, 2010·BMC Evolutionary Biology·Michael ReagonAna L Caicedo
Sep 29, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Zhuxi JiangBao-Rong Lu
Sep 1, 1967·Evolution; International Journal of Organic Evolution·L L Cavalli-Sforza, A W F Edwards

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Citations

Mar 19, 2019·The New Phytologist·Marshall J WedgerKenneth M Olsen
Apr 4, 2017·Nature Genetics·Lin-Feng LiKenneth M Olsen
Aug 14, 2020·Ecology and Evolution·Annabelle GrimmPeter Nick
Mar 3, 2021·Trends in Plant Science·Dongya WuLongjiang Fan
Jul 29, 2021·Plant Science : an International Journal of Experimental Plant Biology·Maggie Pui San SudoBeng-Kah Song

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Methods Mentioned

BETA
PCR
electrophoresis

Software Mentioned

STRUCTURE HARVESTER
Identity
GENEPOP
GeneMapper®
Microsat
Structure
MEGA

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