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The origin of naked barley (Hordeum vulgare L. ssp. vulgare) studied bythe nud gene
Linköping University, Department of Physics, Chemistry and Biology, Molecular genetics. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-0617-9115
2013 (English)Independent thesis Basic level (degree of Bachelor), 10,5 credits / 16 HE creditsStudent thesis
Abstract [en]

The exact origin of the peculiar naked barley is somewhat illusive. There   is a debate whether it has a single, monophyletic origin or a multiple, paraphyletic origin. It is from previous Asian studies on naked   barley known that a mutation   or a deletion of the nud gene expresses the   naked seed phenotype. Not much   investigation has been done outside of   Asia, least of all in the Nordic countries, on what gives naked   barley its character. Therefore this   study was set up to examine if   the Nordic variant of naked barley shares   the same nud allele as the Asian   and thus has a   close connection with it, or   if they have independent mutations. I   could confirm that the known alleles of the nud gene do determine the seed character of barley. Most of the   results of the PCR genotyping confirmed the phenotype of the tested   accessions, both naked and hulled barleys. However, one visually phenotyped naked   barley cultivar (NGB4580) still amplified with the known primers that would   match the Asian hulled allele, meaning that the Nordic accession NGB4580 of   naked barley did not carry the known nud   deletion. This suggests that naked barley has arisen independently in Asia   and in the Nordic countries.

Place, publisher, year, edition, pages
2013. , 14 p.
Keyword [en]
Accessions, barley landraces, domestication, ethylene response factor, monophyletic origin, nud gene.
National Category
URN: urn:nbn:se:liu:diva-94288ISRN: LITH-IFM-G-EX--13/2783–SEOAI: diva2:631385
Subject / course
Microbiology and Molecular Genetics
Available from: 2013-08-08 Created: 2013-06-20 Last updated: 2013-08-08Bibliographically approved

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Gustafsson, Dan
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Molecular geneticsThe Institute of Technology

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