Ecogeographic and genetic determinants of kernel weight and colour of wild barley (Hordeum spontaneum) populations in Israel

Guoxiong Chen; Tatiana Suprunova; Tamar Krugman; Tzion Fahima; Eviatar Nevo

doi:10.1079/SSR2004163

Ecogeographic and genetic determinants of kernel weight and colour of wild barley (Hordeum spontaneum) populations in Israel

Guoxiong Chen, Tatiana Suprunova, Tamar Krugman, Tzion Fahima, Eviatar Nevo

Department of Evolutionary and Environmental Biology

Research output: Contribution to journal › Article › peer-review

Abstract

The aim of this study was to establish associations of kernel weight and colour with ecogeographic factors and molecular markers, based on ten wild barley [Hordeum spontaneum (C. Koch) Thell.] populations sampled in Israel across a southward transect of increasing aridity. Kernel weight and colour category were scored using barley kernels (naked caryopsis). Small kernel sizes (0.011 g kernel^-1) and dark kernels were found in xeric populations. A higher variation of kernel weight was observed in xeric populations. A higher proportion of variation occurred within, rather than among, populations. Water, temperature and soil factors were associated with kernel size variation. Among 18 simple sequence repeats (SSRs) investigated, HVM14, HVM36, HVM43, BMS64 and BMS90 were associated with kernel weight, and HVM68 with kernel colour. The results indicated that high phenotypic variation and genetic diversity are related to ecological stress, and that the association of phenotypic traits with molecular markers, based on natural plant populations, should be interpreted cautiously due to the high chance of spurious associations between traits and molecular markers.

Original language	English
Pages (from-to)	137-146
Number of pages	10
Journal	Seed Science Research
Volume	14
Issue number	2
DOIs	https://doi.org/10.1079/SSR2004163
State	Published - Jun 2004

Bibliographical note

Funding Information:
This work was supported by the following grants: the Israel Discount Bank Chair of Evolutionary Biology; the Ancell-Teicher Research Foundation for Molecular Genetics and Evolution; the German-Israel Project Cooperation ([Deutsch-Israelische Projektkooperation (DIP) project funded by the Bundes Ministerium für Bildung und Forschung (BMBF) and supported by BMBF’s International Bureau at the Deutsches Zentrum für Luft-und Raumfahrt (DLR)], and the Graduate School of the University of Haifa, Israel. The authors thank Dr Avigdor Beiles for valuable advice, Mrs Robin Permut for English editing, and Mrs Ma Yan and Ms Naela Milade for their assistance in the experiment.

Keywords

Association mapping
Ecogeographical factors
Hordeum spontaneum
Kernel colour
Kernel weight
Quantitative trait locus (QTL)
Simple sequence repeats (SSRs)
Wild barley

ASJC Scopus subject areas

Plant Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1079/SSR2004163

Cite this

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title = "Ecogeographic and genetic determinants of kernel weight and colour of wild barley (Hordeum spontaneum) populations in Israel",

abstract = "The aim of this study was to establish associations of kernel weight and colour with ecogeographic factors and molecular markers, based on ten wild barley [Hordeum spontaneum (C. Koch) Thell.] populations sampled in Israel across a southward transect of increasing aridity. Kernel weight and colour category were scored using barley kernels (naked caryopsis). Small kernel sizes (0.011 g kernel-1) and dark kernels were found in xeric populations. A higher variation of kernel weight was observed in xeric populations. A higher proportion of variation occurred within, rather than among, populations. Water, temperature and soil factors were associated with kernel size variation. Among 18 simple sequence repeats (SSRs) investigated, HVM14, HVM36, HVM43, BMS64 and BMS90 were associated with kernel weight, and HVM68 with kernel colour. The results indicated that high phenotypic variation and genetic diversity are related to ecological stress, and that the association of phenotypic traits with molecular markers, based on natural plant populations, should be interpreted cautiously due to the high chance of spurious associations between traits and molecular markers.",

keywords = "Association mapping, Ecogeographical factors, Hordeum spontaneum, Kernel colour, Kernel weight, Quantitative trait locus (QTL), Simple sequence repeats (SSRs), Wild barley",

author = "Guoxiong Chen and Tatiana Suprunova and Tamar Krugman and Tzion Fahima and Eviatar Nevo",

note = "Funding Information: This work was supported by the following grants: the Israel Discount Bank Chair of Evolutionary Biology; the Ancell-Teicher Research Foundation for Molecular Genetics and Evolution; the German-Israel Project Cooperation ([Deutsch-Israelische Projektkooperation (DIP) project funded by the Bundes Ministerium f{\"u}r Bildung und Forschung (BMBF) and supported by BMBF{\textquoteright}s International Bureau at the Deutsches Zentrum f{\"u}r Luft-und Raumfahrt (DLR)], and the Graduate School of the University of Haifa, Israel. The authors thank Dr Avigdor Beiles for valuable advice, Mrs Robin Permut for English editing, and Mrs Ma Yan and Ms Naela Milade for their assistance in the experiment.",

year = "2004",

month = jun,

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volume = "14",

pages = "137--146",

journal = "Seed Science Research",

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AU - Krugman, Tamar

AU - Fahima, Tzion

AU - Nevo, Eviatar

N1 - Funding Information: This work was supported by the following grants: the Israel Discount Bank Chair of Evolutionary Biology; the Ancell-Teicher Research Foundation for Molecular Genetics and Evolution; the German-Israel Project Cooperation ([Deutsch-Israelische Projektkooperation (DIP) project funded by the Bundes Ministerium für Bildung und Forschung (BMBF) and supported by BMBF’s International Bureau at the Deutsches Zentrum für Luft-und Raumfahrt (DLR)], and the Graduate School of the University of Haifa, Israel. The authors thank Dr Avigdor Beiles for valuable advice, Mrs Robin Permut for English editing, and Mrs Ma Yan and Ms Naela Milade for their assistance in the experiment.

PY - 2004/6

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N2 - The aim of this study was to establish associations of kernel weight and colour with ecogeographic factors and molecular markers, based on ten wild barley [Hordeum spontaneum (C. Koch) Thell.] populations sampled in Israel across a southward transect of increasing aridity. Kernel weight and colour category were scored using barley kernels (naked caryopsis). Small kernel sizes (0.011 g kernel-1) and dark kernels were found in xeric populations. A higher variation of kernel weight was observed in xeric populations. A higher proportion of variation occurred within, rather than among, populations. Water, temperature and soil factors were associated with kernel size variation. Among 18 simple sequence repeats (SSRs) investigated, HVM14, HVM36, HVM43, BMS64 and BMS90 were associated with kernel weight, and HVM68 with kernel colour. The results indicated that high phenotypic variation and genetic diversity are related to ecological stress, and that the association of phenotypic traits with molecular markers, based on natural plant populations, should be interpreted cautiously due to the high chance of spurious associations between traits and molecular markers.

AB - The aim of this study was to establish associations of kernel weight and colour with ecogeographic factors and molecular markers, based on ten wild barley [Hordeum spontaneum (C. Koch) Thell.] populations sampled in Israel across a southward transect of increasing aridity. Kernel weight and colour category were scored using barley kernels (naked caryopsis). Small kernel sizes (0.011 g kernel-1) and dark kernels were found in xeric populations. A higher variation of kernel weight was observed in xeric populations. A higher proportion of variation occurred within, rather than among, populations. Water, temperature and soil factors were associated with kernel size variation. Among 18 simple sequence repeats (SSRs) investigated, HVM14, HVM36, HVM43, BMS64 and BMS90 were associated with kernel weight, and HVM68 with kernel colour. The results indicated that high phenotypic variation and genetic diversity are related to ecological stress, and that the association of phenotypic traits with molecular markers, based on natural plant populations, should be interpreted cautiously due to the high chance of spurious associations between traits and molecular markers.

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KW - Kernel weight

KW - Quantitative trait locus (QTL)

KW - Simple sequence repeats (SSRs)

KW - Wild barley

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SN - 0960-2585

VL - 14

SP - 137

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JO - Seed Science Research

JF - Seed Science Research

IS - 2

ER -

Ecogeographic and genetic determinants of kernel weight and colour of wild barley (Hordeum spontaneum) populations in Israel

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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