Seed mass and plant home site environment interact to determine alpine species germination patterns along an elevation gradient

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F20%3A00533380" target="_blank" >RIV/67985939:_____/20:00533380 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/86652079:_____/20:00533566 RIV/00216208:11310/20:10414566

Výsledek na webu

<a href="http://hdl.handle.net/11104/0314342" target="_blank" >http://hdl.handle.net/11104/0314342</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00035-020-00242-7" target="_blank" >10.1007/s00035-020-00242-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Seed mass and plant home site environment interact to determine alpine species germination patterns along an elevation gradient

Popis výsledku v původním jazyce

Ongoing changes in temperature and precipitation regime may have a strong impact on vulnerable life-history stages such as germination, especially in alpine regions. Differences in germination patterns among species and populations may reflect their adaptation to conditions of their origin or may be determined by the phylogenetic constraints. These two effects are, however, rarely separated. All the germination patterns may also be modified by seed mass. We studied 40 populations of 14 species ofImpatienscoming from different elevations in the Himalayas. Three home site temperatures were simulated and one warmer temperature according to a climate change scenario were used. We also studied the combined effect of shorter stratification and warmer temperature as another possible effect of climate change. Interactions of home site and germination conditions affected total germination and germination speed, but not seed dormancy. Seed mass and home site conditions' interaction indicated different germination strategies in light and heavy seeds. Only seed mass was affected by phylogenetic relationships among the species, while germination response (except T30) was driven primarily by home site conditions. This study is the first to show that the effect of seed mass interacts with home site conditions in determining species' germination patterns under changing climate. The differences in seed mass are thus likely crucial for species' ability to adapt to novel conditions since seed mass, unlike seed germination patterns, is strongly phylogenetically constrained. Further studies exploring how seed mass modifies species' germination under changing climate are needed to confirm generalisability of these findings.

Název v anglickém jazyce

Seed mass and plant home site environment interact to determine alpine species germination patterns along an elevation gradient

Popis výsledku anglicky

Ongoing changes in temperature and precipitation regime may have a strong impact on vulnerable life-history stages such as germination, especially in alpine regions. Differences in germination patterns among species and populations may reflect their adaptation to conditions of their origin or may be determined by the phylogenetic constraints. These two effects are, however, rarely separated. All the germination patterns may also be modified by seed mass. We studied 40 populations of 14 species ofImpatienscoming from different elevations in the Himalayas. Three home site temperatures were simulated and one warmer temperature according to a climate change scenario were used. We also studied the combined effect of shorter stratification and warmer temperature as another possible effect of climate change. Interactions of home site and germination conditions affected total germination and germination speed, but not seed dormancy. Seed mass and home site conditions' interaction indicated different germination strategies in light and heavy seeds. Only seed mass was affected by phylogenetic relationships among the species, while germination response (except T30) was driven primarily by home site conditions. This study is the first to show that the effect of seed mass interacts with home site conditions in determining species' germination patterns under changing climate. The differences in seed mass are thus likely crucial for species' ability to adapt to novel conditions since seed mass, unlike seed germination patterns, is strongly phylogenetically constrained. Further studies exploring how seed mass modifies species' germination under changing climate are needed to confirm generalisability of these findings.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/GA17-10280S" target="_blank" >GA17-10280S: Variabilita vlastností u rostlin jako nástroj k přizpůsobení měnícímu se klimatu - od fenotypů ke genům a zase zpět</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Alpine Botany

ISSN

1664-2201

e-ISSN

—

Svazek periodika

130

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

101-113

Kód UT WoS článku

000568653400001

EID výsledku v databázi Scopus

2-s2.0-85090865837