Physical Dormancy Release in Medicago truncatula Seeds Is Related to Environmental Variations.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73604532" target="_blank" >RIV/61989592:15310/20:73604532 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2223-7747/9/4/503/htm" target="_blank" >https://www.mdpi.com/2223-7747/9/4/503/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/plants9040503" target="_blank" >10.3390/plants9040503</a>

Result language

angličtina

Original language name

Physical Dormancy Release in Medicago truncatula Seeds Is Related to Environmental Variations.

Original language description

Seed dormancy and timing of its release is an important developmental transition determining the survival of individuals, populations, and species in variable environments. Medicago truncatula was used as a model to study physical seed dormancy at the ecological and genetics level. The effect of alternating temperatures, as one of the causes releasing physical seed dormancy, was tested in 178 M. truncatula accessions over three years. Several coefficients of dormancy release were related to environmental variables. Dormancy varied greatly (4–100%) across accessions as well as year of experiment. We observed overall higher physical dormancy release under more alternating temperatures (35/15 °C) in comparison with less alternating ones (25/15 °C). Accessions from more arid climates released dormancy under higher experimental temperature alternations more than accessions originating from less arid environments. The plasticity of physical dormancy can probably distribute the germination through the year and act as a bet-hedging strategy in arid environments. On the other hand, a slight increase in physical dormancy was observed in accessions from environments with higher among-season temperature variation. Genome-wide association analysis identified 136 candidate genes related to secondary metabolite synthesis, hormone regulation, and modification of the cell wall. The activity of these genes might mediate seed coat permeability and, ultimately, imbibition and germination.

Czech name

—

Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/GA16-21053S" target="_blank" >GA16-21053S: Ecological genomic approaches to uncovering the adaptive significance of seed dormancy in legumes.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Plants-Basel

ISSN

2223-7747

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

4

Country of publishing house

CH - SWITZERLAND

Number of pages

20

Pages from-to

"503-1"-"503-20"

UT code for WoS article

000539578900097

EID of the result in the Scopus database

2-s2.0-85083395703