Teosinte in Europe – Searching for the Origin of a Novel Weed

Abstract A novel weed has recently emerged, causing serious agronomic damage in one of the most important maize-growing regions of Western Europe, the Northern Provinces of Spain. The weed has morphological similarities to a wild relative of maize and has generally been referred to as teosinte. Howe...

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Autores principales:	Miluse Trtikova, Andre Lohn, Rosa Binimelis, Ignacio Chapela, Bernadette Oehen, Niklaus Zemp, Alex Widmer, Angelika Hilbeck
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3d3ce597c97f4b1fa7f7f937b04da316
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spelling	oai:doaj.org-article:3d3ce597c97f4b1fa7f7f937b04da3162021-12-02T12:32:30ZTeosinte in Europe – Searching for the Origin of a Novel Weed10.1038/s41598-017-01478-w2045-2322https://doaj.org/article/3d3ce597c97f4b1fa7f7f937b04da3162017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01478-whttps://doaj.org/toc/2045-2322Abstract A novel weed has recently emerged, causing serious agronomic damage in one of the most important maize-growing regions of Western Europe, the Northern Provinces of Spain. The weed has morphological similarities to a wild relative of maize and has generally been referred to as teosinte. However, the identity, origin or genetic composition of ‘Spanish teosinte’ was unknown. Here, we present a genome-wide analysis of single-nucleotide polymorphism (SNP) data for Spanish teosinte, sympatric populations of cultivated maize and samples of reference teosinte taxa. Our data are complemented with previously published SNP datasets of cultivated maize and two Mexican teosinte subspecies. Our analyses reveal that Spanish teosinte does not group with any of the currently recognized teosinte taxa. Based on Bayesian clustering analysis and hybridization simulations, we infer that Spanish teosinte is of admixed origin, most likely involving Zea mays ssp. mexicana as one parental taxon, and an unidentified cultivated maize variety as the other. Analyses of plants grown from seeds collected in Spanish maize fields and experimental crosses under controlled conditions reveal that hybridization does occur between Spanish teosinte and cultivated maize in Spain, and that current hybridization is asymmetric, favouring the introgression of Spanish teosinte into cultivated maize, rather than vice versa.Miluse TrtikovaAndre LohnRosa BinimelisIgnacio ChapelaBernadette OehenNiklaus ZempAlex WidmerAngelika HilbeckNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Miluse Trtikova Andre Lohn Rosa Binimelis Ignacio Chapela Bernadette Oehen Niklaus Zemp Alex Widmer Angelika Hilbeck Teosinte in Europe – Searching for the Origin of a Novel Weed
description	Abstract A novel weed has recently emerged, causing serious agronomic damage in one of the most important maize-growing regions of Western Europe, the Northern Provinces of Spain. The weed has morphological similarities to a wild relative of maize and has generally been referred to as teosinte. However, the identity, origin or genetic composition of ‘Spanish teosinte’ was unknown. Here, we present a genome-wide analysis of single-nucleotide polymorphism (SNP) data for Spanish teosinte, sympatric populations of cultivated maize and samples of reference teosinte taxa. Our data are complemented with previously published SNP datasets of cultivated maize and two Mexican teosinte subspecies. Our analyses reveal that Spanish teosinte does not group with any of the currently recognized teosinte taxa. Based on Bayesian clustering analysis and hybridization simulations, we infer that Spanish teosinte is of admixed origin, most likely involving Zea mays ssp. mexicana as one parental taxon, and an unidentified cultivated maize variety as the other. Analyses of plants grown from seeds collected in Spanish maize fields and experimental crosses under controlled conditions reveal that hybridization does occur between Spanish teosinte and cultivated maize in Spain, and that current hybridization is asymmetric, favouring the introgression of Spanish teosinte into cultivated maize, rather than vice versa.
format	article
author	Miluse Trtikova Andre Lohn Rosa Binimelis Ignacio Chapela Bernadette Oehen Niklaus Zemp Alex Widmer Angelika Hilbeck
author_facet	Miluse Trtikova Andre Lohn Rosa Binimelis Ignacio Chapela Bernadette Oehen Niklaus Zemp Alex Widmer Angelika Hilbeck
author_sort	Miluse Trtikova
title	Teosinte in Europe – Searching for the Origin of a Novel Weed
title_short	Teosinte in Europe – Searching for the Origin of a Novel Weed
title_full	Teosinte in Europe – Searching for the Origin of a Novel Weed
title_fullStr	Teosinte in Europe – Searching for the Origin of a Novel Weed
title_full_unstemmed	Teosinte in Europe – Searching for the Origin of a Novel Weed
title_sort	teosinte in europe – searching for the origin of a novel weed
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/3d3ce597c97f4b1fa7f7f937b04da316
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Teosinte in Europe – Searching for the Origin of a Novel Weed

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