Variability of Seed Germination and Dormancy Characteristics and Genetic Analysis of Latvian <i>Avena fatua</i> Populations
<i>Avena fatua</i> is an economically detrimental weed found in cereal growing areas worldwide. Knowledge about the variation of dormancy and germination characteristics, as well as of the genetic diversity and structure can provide additional information about different populations with...
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doaj-850e3f813392480682c1a019c4c651102021-01-27T00:02:23ZengMDPI AGPlants2223-77472021-01-011023523510.3390/plants10020235Variability of Seed Germination and Dormancy Characteristics and Genetic Analysis of Latvian <i>Avena fatua</i> PopulationsJevgenija Ņečajeva0Māra Bleidere1Zaiga Jansone2Agnese Gailīte3Dainis Ruņģis4Institute for Plant Protection Research ‘Agrihorts’, Latvia University of Science and Technology, LV-3004 Jelgava, LatviaStende Research Centre, Institute of Agricultural Resources and Economics, Dizzemes, Dizstende, Libagu Parish, LV-3258 Talsu District, LatviaStende Research Centre, Institute of Agricultural Resources and Economics, Dizzemes, Dizstende, Libagu Parish, LV-3258 Talsu District, LatviaLatvian State Forest Research Institute ‘Silava’, LV-2169 Salaspils, LatviaLatvian State Forest Research Institute ‘Silava’, LV-2169 Salaspils, Latvia<i>Avena fatua</i> is an economically detrimental weed found in cereal growing areas worldwide. Knowledge about the variation of dormancy and germination characteristics, as well as of the genetic diversity and structure can provide additional information about different populations within a region. Identification and development of potential indicators or markers of seed germination behavior, would be useful for modelling emergence and seed bank dynamics. This study aimed to describe the initial germination, dormancy, and morphological characteristics of seeds from different Latvian populations of <i>A. fatua</i> and to investigate the genetic structure of local populations. Seed samples from 26 to 41 locations in different regions of Latvia were collected over three years. Seed morphology, initial germination, and the effect of dormancy-breaking treatments were determined. Seeds from 18 Latvian populations with contrasting seed dormancy characteristics were genotyped. Although morphological differences between seeds from different regions were revealed, genetic analysis of the selected populations indicated that the population structure was not related to geographical location, which probably reflects the impact of anthropogenic dispersal of <i>A. fatua</i> seeds. The effect of dormancy-breaking treatments varied between years, between climatic zones and between populations, indicating environmental influences as well as inherited dormancy.https://www.mdpi.com/2223-7747/10/2/235dormancy genotypinggibberelliniPBS markersseed morphologywild oatweed |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jevgenija Ņečajeva Māra Bleidere Zaiga Jansone Agnese Gailīte Dainis Ruņģis |
spellingShingle |
Jevgenija Ņečajeva Māra Bleidere Zaiga Jansone Agnese Gailīte Dainis Ruņģis Variability of Seed Germination and Dormancy Characteristics and Genetic Analysis of Latvian <i>Avena fatua</i> Populations Plants dormancy genotyping gibberellin iPBS markers seed morphology wild oat weed |
author_facet |
Jevgenija Ņečajeva Māra Bleidere Zaiga Jansone Agnese Gailīte Dainis Ruņģis |
author_sort |
Jevgenija Ņečajeva |
title |
Variability of Seed Germination and Dormancy Characteristics and Genetic Analysis of Latvian <i>Avena fatua</i> Populations |
title_short |
Variability of Seed Germination and Dormancy Characteristics and Genetic Analysis of Latvian <i>Avena fatua</i> Populations |
title_full |
Variability of Seed Germination and Dormancy Characteristics and Genetic Analysis of Latvian <i>Avena fatua</i> Populations |
title_fullStr |
Variability of Seed Germination and Dormancy Characteristics and Genetic Analysis of Latvian <i>Avena fatua</i> Populations |
title_full_unstemmed |
Variability of Seed Germination and Dormancy Characteristics and Genetic Analysis of Latvian <i>Avena fatua</i> Populations |
title_sort |
variability of seed germination and dormancy characteristics and genetic analysis of latvian <i>avena fatua</i> populations |
publisher |
MDPI AG |
series |
Plants |
issn |
2223-7747 |
publishDate |
2021-01-01 |
description |
<i>Avena fatua</i> is an economically detrimental weed found in cereal growing areas worldwide. Knowledge about the variation of dormancy and germination characteristics, as well as of the genetic diversity and structure can provide additional information about different populations within a region. Identification and development of potential indicators or markers of seed germination behavior, would be useful for modelling emergence and seed bank dynamics. This study aimed to describe the initial germination, dormancy, and morphological characteristics of seeds from different Latvian populations of <i>A. fatua</i> and to investigate the genetic structure of local populations. Seed samples from 26 to 41 locations in different regions of Latvia were collected over three years. Seed morphology, initial germination, and the effect of dormancy-breaking treatments were determined. Seeds from 18 Latvian populations with contrasting seed dormancy characteristics were genotyped. Although morphological differences between seeds from different regions were revealed, genetic analysis of the selected populations indicated that the population structure was not related to geographical location, which probably reflects the impact of anthropogenic dispersal of <i>A. fatua</i> seeds. The effect of dormancy-breaking treatments varied between years, between climatic zones and between populations, indicating environmental influences as well as inherited dormancy. |
topic |
dormancy genotyping gibberellin iPBS markers seed morphology wild oat weed |
url |
https://www.mdpi.com/2223-7747/10/2/235 |
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