Inbreeding Depression Manifested in Progeny From Fragmented Populations of the Wind-Pollinated Dioecious Conifer <i>Afrocarpus gracilior</i> (Pilg.) C. N. Page

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41340%2F25%3A106448" target="_blank" >RIV/60460709:41340/25:106448 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1002/ece3.70903" target="_blank" >https://doi.org/10.1002/ece3.70903</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ece3.70903" target="_blank" >10.1002/ece3.70903</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Inbreeding Depression Manifested in Progeny From Fragmented Populations of the Wind-Pollinated Dioecious Conifer <i>Afrocarpus gracilior</i> (Pilg.) C. N. Page

Popis výsledku v původním jazyce

Human activities such as agriculture, urbanization, and logging have caused widespread destruction of forests, leading to forest fragmentation. Fragmentation has been shown to reduce genetic diversity and increase inbreeding in forest populations, potentially leading to inbreeding depression manifested through decreased reproductive success and progeny vigor. The severity of these impacts, however, varies among species and is largely influenced by their mating systems. This study examines the effects of forest fragmentation on Afrocarpus gracilior, a dioecious, wind-pollinated conifer, by assessing genetic diversity, reproductive success, and early progeny fitness. Our analysis revealed alarmingly low genetic diversity and high genetic drift, especially in small and isolated populations. Consistent with these findings, reduced progeny fitness was observed, with small populations showing 53% lower germination rates, 33% reduced acclimatization, 30% slower diameter growth, 41% reduced height growth, and an 80% increase in leaf scorch. Correlation analysis further confirmed a strong relationship between the genetic diversity and progeny fitness traits. These findings suggest that inbreeding depression severely affects the fitness of progeny from small and isolated populations of A. gracilior, posing a serious threat to their long-term survival. The implications for conservation and restoration efforts are immense, underscoring the need to prioritize genetically diverse populations for conservation and strategically procure seeds to support the survival of this species.

Název v anglickém jazyce

Inbreeding Depression Manifested in Progeny From Fragmented Populations of the Wind-Pollinated Dioecious Conifer <i>Afrocarpus gracilior</i> (Pilg.) C. N. Page

Popis výsledku anglicky

Human activities such as agriculture, urbanization, and logging have caused widespread destruction of forests, leading to forest fragmentation. Fragmentation has been shown to reduce genetic diversity and increase inbreeding in forest populations, potentially leading to inbreeding depression manifested through decreased reproductive success and progeny vigor. The severity of these impacts, however, varies among species and is largely influenced by their mating systems. This study examines the effects of forest fragmentation on Afrocarpus gracilior, a dioecious, wind-pollinated conifer, by assessing genetic diversity, reproductive success, and early progeny fitness. Our analysis revealed alarmingly low genetic diversity and high genetic drift, especially in small and isolated populations. Consistent with these findings, reduced progeny fitness was observed, with small populations showing 53% lower germination rates, 33% reduced acclimatization, 30% slower diameter growth, 41% reduced height growth, and an 80% increase in leaf scorch. Correlation analysis further confirmed a strong relationship between the genetic diversity and progeny fitness traits. These findings suggest that inbreeding depression severely affects the fitness of progeny from small and isolated populations of A. gracilior, posing a serious threat to their long-term survival. The implications for conservation and restoration efforts are immense, underscoring the need to prioritize genetically diverse populations for conservation and strategically procure seeds to support the survival of this species.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

ECOLOGY AND EVOLUTION

ISSN

2045-7758

e-ISSN

2045-7758

Svazek periodika

15

Číslo periodika v rámci svazku

FEB 2025

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

19

Strana od-do

—

Kód UT WoS článku

001418071900001

EID výsledku v databázi Scopus

2-s2.0-85218949607