New evidence of ancestral polyploidy in the Genistoid legume Lupinus angustifolius L. (narrow-leafed lupin)

Publication Overview
TitleNew evidence of ancestral polyploidy in the Genistoid legume Lupinus angustifolius L. (narrow-leafed lupin)
AuthorsKroc M, Koczyk G, Święcicki W, Kilian A, Nelson MN
TypeComparative Study
Media TitleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Volume127
Issue5
Year2014
Page(s)1237-49
CitationKroc M, Koczyk G, Święcicki W, Kilian A, Nelson MN. New evidence of ancestral polyploidy in the Genistoid legume Lupinus angustifolius L. (narrow-leafed lupin). TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik. 2014 May; 127(5):1237-49.

Abstract

KEY MESSAGE
This is the first clear evidence of duplication and/or triplication of large chromosomal regions in a genome of a Genistoid legume, the most basal clade of Papilionoid legumes. Lupinus angustifolius L. (narrow-leafed lupin) is the most widely cultivated species of Genistoid legume, grown for its high-protein grain. As a member of this most basal clade of Papilionoid legumes, L. angustifolius serves as a useful model for exploring legume genome evolution. Here, we report an improved reference genetic map of L. angustifolius comprising 1207 loci, including 299 newly developed Diversity Arrays Technology markers and 54 new gene-based PCR markers. A comparison between the L. angustifolius and Medicago truncatula genomes was performed using 394 sequence-tagged site markers acting as bridging points between the two genomes. The improved L. angustifolius genetic map, the updated M. truncatula genome assembly and the increased number of bridging points between the genomes together substantially enhanced the resolution of synteny and chromosomal colinearity between these genomes compared to previous reports. While a high degree of syntenic fragmentation was observed that was consistent with the large evolutionary distance between the L. angustifolius and M. truncatula genomes, there were striking examples of conserved colinearity of loci between these genomes. Compelling evidence was found of large-scale duplication and/or triplication in the L. angustifolius genome, consistent with one or more ancestral polyploidy events.

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Pages

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This publication contains information about 1 maps:
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Properties
Additional details for this publication include:
Property NameValue
Publication ModelPrint-Electronic
ISSN1432-2242
eISSN1432-2242
Publication Date2014 May
Journal AbbreviationTheor. Appl. Genet.
DOI10.1007/s00122-014-2294-y
Elocation10.1007/s00122-014-2294-y
LanguageEnglish
Language Abbreng
Publication TypeComparative Study
Journal CountryGermany
Publication TypeJournal Article
Publication TypeResearch Support, Non-U.S. Gov't