Evolutionary Processes Shaping Postglacial Gene Pools of High-Altitude Forests: Evidence from the Endemic Eucalypts of Tasmania DOI Open Access
Rebecca C. Jones, Peter A. Harrison,

Corey J. Hudson

и другие.

Forests, Год журнала: 2023, Номер 14(6), С. 1072 - 1072

Опубликована: Май 23, 2023

Climatic changes during the Pleistocene were responsible for dramatic redistributions of plant species worldwide. On rugged southern hemisphere island Tasmania, temperature increases following last glaciation saw upslope migration climatically suitable from lowland refugia and expansion eucalypt-dominated forests woodlands in Central Highlands. We integrate multiple lines evidence (chloroplast nuclear DNA markers, seedling morphology, survival common garden experiments) a group closely related endemic eucalypts (the alpine white gums) to argue that (i) Highlands colonised by glacial with hybridisation among previously separated populations, (ii) natural selection has filtered admixed resulting local adaptation harsh sub-alpine environment. Chloroplast haplotype diversity decreased microsatellite increased altitude, chloroplast sharing taxa was common, differentiation morphologically distinct lower compared regions. Local highlands signalled glasshouse trial which directional (QST > FST) had shaped morphological trait variation population differences 35-year-old reciprocal plantings along major environmental gradients. conclude evolutionary response these trees past climate change involved interplay both selection, highlighting importance maintaining interactions under future change.

Язык: Английский

Will “Tall Oaks from Little Acorns Grow”? White Oak (Quercus alba) Biology in the Anthropocene DOI Open Access

Albert G. Abbott,

Margaret Staton, John M. Lhotka

и другие.

Forests, Год журнала: 2024, Номер 15(2), С. 269 - 269

Опубликована: Янв. 30, 2024

Quercus alba L., also known as white oak, eastern or American is a quintessential North species within the oak section (Quercus) of genus Quercus, subgenus Quercus. This plays vital role keystone in forests and significant local regional economies. As long-lived woody perennial covering an extensive natural range, Q. alba’s biology shaped by myriad adaptations accumulated throughout its history. Populations are crucial repositories genetic, genomic, evolutionary insights, capturing essence successful historical ongoing responses to contemporary environmental challenges Anthropocene. intersection offers exceptional opportunity integrate genomic knowledge with discovery climate-relevant traits, advancing tree improvement, forest ecology, management strategies. review provides comprehensive examination current understanding biology, considering past, present, future research perspectives. It encompasses aspects such distribution, phylogeny, population structure, key adaptive traits cyclical conditions (including water use, reproduction, propagation, growth), well species’ resilience biotic abiotic stressors. Additionally, this highlights state-of-the-art resources available for genus, including alba, showcasing developments genetics, genomics, biotechnology, phenomics tools. overview lays groundwork exploring elucidating principles longevity plants, positioning emerging model species, ideally suited investigating traits.

Язык: Английский

Процитировано

0
Progress and Prospects of Population Genomics of North American Hardwoods DOI
Oliver Gailing, Margaret Staton, Scott E. Schlarbaum

и другие.

Population genomics, Год журнала: 2021, Номер unknown

Опубликована: Янв. 1, 2021

Язык: Английский

Процитировано

1
Evolutionary Processes Shaping Postglacial Gene Pools of High-Altitude Forests: Evidence from the Endemic Eucalypts of Tasmania DOI Open Access
Rebecca C. Jones, Peter A. Harrison,

Corey J. Hudson

и другие.

Forests, Год журнала: 2023, Номер 14(6), С. 1072 - 1072

Опубликована: Май 23, 2023

Climatic changes during the Pleistocene were responsible for dramatic redistributions of plant species worldwide. On rugged southern hemisphere island Tasmania, temperature increases following last glaciation saw upslope migration climatically suitable from lowland refugia and expansion eucalypt-dominated forests woodlands in Central Highlands. We integrate multiple lines evidence (chloroplast nuclear DNA markers, seedling morphology, survival common garden experiments) a group closely related endemic eucalypts (the alpine white gums) to argue that (i) Highlands colonised by glacial with hybridisation among previously separated populations, (ii) natural selection has filtered admixed resulting local adaptation harsh sub-alpine environment. Chloroplast haplotype diversity decreased microsatellite increased altitude, chloroplast sharing taxa was common, differentiation morphologically distinct lower compared regions. Local highlands signalled glasshouse trial which directional (QST > FST) had shaped morphological trait variation population differences 35-year-old reciprocal plantings along major environmental gradients. conclude evolutionary response these trees past climate change involved interplay both selection, highlighting importance maintaining interactions under future change.

Язык: Английский

Процитировано

0