Drought Response and Genetic Variation in Scots Pine Seedlings' Provenances: Insights From High-Throughput Phenotyping for Climate-Resilient Forestry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F25%3A102232" target="_blank" >RIV/60460709:41210/25:102232 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41320/25:102232

Result on the web

<a href="https://doi.org/10.1111/eva.70157" target="_blank" >https://doi.org/10.1111/eva.70157</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/eva.70157" target="_blank" >10.1111/eva.70157</a>

Result language

angličtina

Original language name

Drought Response and Genetic Variation in Scots Pine Seedlings' Provenances: Insights From High-Throughput Phenotyping for Climate-Resilient Forestry

Original language description

Scots pine (Pinus sylvestris L.) is characterized by considerable intraspecific adaptive variability in response to environmental stress factors due to its wide geographical range. Adaptability is key for forestry, promising resilience against upcoming Europe's climate-driven droughts. We studied three provenances of pedigreed Scots pine seedlings from distinct upland and lowland habitats in the Czech Republic. A water deficit was induced in 2-year-old, potted seedlings in a greenhouse. Their physiological responses to drought were investigated at the beginning of growing season during the development of new shoots, and after subsequent summer rewatering. (1) We analyzed several physiological traits to assess their effectiveness in detecting treatment effects: steady-state quantum yield of PSII (QY Lss), maximum quantum yield of PSII (QY max), steady-state non-photochemical quenching (NPQ Lss), needle chlorophyll fluorescence ratio (SFR_R), and needle temperature normalized to ambient temperature (triangle T), using a high-throughput phenotyping unit. The divergence in SFR_R, QY max, QY Lss, NPQ Lss, and Delta T suggests that drought stress significantly impacts photosynthetic efficiency and heat dissipation, with recovery occurring after rewatering. (2) We detected differences within and among provenances utilizing a single nucleotide polymorphism genotyping array and linear mixed models integrating estimated genomic relationships to investigate genetic variation in needle functional traits in time. Throughout the experiment, heritability (h(2) ) varied widely among traits-with QY max and QY Lss showing the greatest variability (from 0 to 0.37), NPQ Lss exhibiting a narrower range aside from two outlier peaks, and SFR_R and triangle T displaying lower variability and lower h(2) values (0-0.24). The photosynthesis-related traits (QY max, QY Lss) showed the highest genetic variation, underscoring their potential for early-age phenotyping and selection of drought-tolerant genotypes. These findings address practical problems in forest management, particularly in light of changing weather patterns and climate variability, and provide a foundation for advanced optically based, early-age phenotyping to enhance forest resilience.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

<a href="/en/project/LTAUSA19113" target="_blank" >LTAUSA19113: Genetic variability of hyper-spectral reflectance in Scots pine ecotypes for selection of drought-resistant individuals</a><br>

Continuities

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

Publication year

2025

Confidentiality

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

Name of the periodical

Evolutionary Applications

ISSN

1752-4563

e-ISSN

1752-4571

Volume of the periodical

18

Issue of the periodical within the volume

10

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

21

Pages from-to

1-21

UT code for WoS article

001589285500001

EID of the result in the Scopus database

2-s2.0-105018501308