Genetic and Habitat Rescue Improve Population Viability in Self‐Incompatible Plants DOI Creative Commons
Francisco Encinas‐Viso, Peter H. Thrall, Andrew G. Young

et al.

Evolutionary Applications, Journal Year: 2024, Volume and Issue: 17(11)

Published: Nov. 1, 2024

Habitat fragmentation and the acceleration of environmental change threaten survival many plant species. The problem is especially pronounced for species with self-incompatibility mating systems, which are obligate outcrossers, thus requiring high mate availability to persist. In such situations, populations suffering decreased fitness could be rescued by: (a) improving local habitat conditions (habitat rescue), (b) increasing number individuals (demographic or (c) introducing new genetic variation (genetic rescue). this study, we used a spatially genetically explicit individual-based model approximate demography small (

Language: Английский

Taxonomic and genetic assessment of disjunct populations of the threatened plant Arnica montana (Asteraceae) from central France DOI
Fabienne Van Rossum, Didier Buisson, Timothée Le Péchon

et al.

Perspectives in Plant Ecology Evolution and Systematics, Journal Year: 2025, Volume and Issue: 67, P. 125873 - 125873

Published: April 30, 2025

Language: Английский

Citations

0
Genetic diversity assessment of Helichrysum arenarium (Asteraceae) for the genetic restoration of declining populations DOI Creative Commons
Fabienne Van Rossum, Cécile Godé, Alenka Baruca Arbeiter

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(2)

Published: Feb. 1, 2024

(L.) Moench (Asteraceae) is a self-compatible, insect-pollinated herb occurring in sand grasslands, and declining endangered many parts of its European distribution range. A recovery plan

Language: Английский

Citations

1
Maternal effects and inbreeding depression in post‐translocation progeny of Campanula glomerata DOI
Fabienne Van Rossum,

Sarah Le Pajolec

Plant Biology, Journal Year: 2024, Volume and Issue: 26(3), P. 427 - 436

Published: March 1, 2024

Evaluation of plant translocation success based on fitness-related quantitative traits combined with molecular markers may contribute to a finer assessment inbreeding, selective and rescue processes, which might have long-term consequences for population dynamics viability. We investigated fitness (seed germination, seedling viability, juvenile growth mortality) 15 microsatellite loci the first post-translocation seed progeny from two translocated populations Campanula glomerata, an insect-pollinated, self-incompatible perennial herb. examined whether heterosis through admixture, site maternal transplant source origin lineage affect quality in controlled cultivation conditions. Flower production germination transplants was higher one sites, be related differences soil vegetation composition cover. Strong effects were found size, largest producing progeny. The rosette diameter maintained across whole period measured. There inbreeding depression (rather than heterosis) biparental at early stage, also expressed mortality. Our findings highlight that origin, especially when sources consisted small, fragmented remnants, value generations. If persist, they global genetic diversity patterns long term. Further admixture next generations buffer or lead outbreeding depression.

Language: Английский

Citations

1
Environmental drivers of seed persistence and seedling trait variation in two Neltuma species (Fabaceae) DOI Creative Commons
Juan P. Renzi, Matías Quintana,

Matías Bruna

et al.

Seed Science Research, Journal Year: 2024, Volume and Issue: 34(4), P. 186 - 193

Published: Dec. 1, 2024

Abstract The endemic tree Neltuma caldenia Burk. and the shrub flexuosa var depressa F.A. Roig (Fabaceae; subfam: Mimosoideae) are two promising species from central region of Argentina, with high potential for use in restoration disturbed environments, extensive livestock grazing apiculture. Both have seeds physical dormancy. Ecological study native is important point view rehabilitation degraded areas by natural regeneration or via seed-based programmes. objective this was to evaluate soil seed bank persistence seedling traits understand variation among different populations each growing along an ecological gradient identify components driving variation. Home environments influenced persistence, which higher originating more arid unpredictable where it could act as a bet-hedging strategy between years seasons. We also observed differences associated growth populations. Populations were greater N. . rapid elongation rate seedlings large unstable help their ability escape drought accessing deeper moisture would confer relative competitive ability. In contrast, f displayed conditions correlated lower growth, possibly due inbreeding depression effect, resulting presence mother plants low-densities being isolated other individuals. There no effect population size on persistence. To better trait variation, future studies need consider genotype, environment landscape conditions.

Language: Английский

Citations

1
Genetic and Habitat Rescue Improve Population Viability in Self‐Incompatible Plants DOI Creative Commons
Francisco Encinas‐Viso, Peter H. Thrall, Andrew G. Young

et al.

Evolutionary Applications, Journal Year: 2024, Volume and Issue: 17(11)

Published: Nov. 1, 2024

Habitat fragmentation and the acceleration of environmental change threaten survival many plant species. The problem is especially pronounced for species with self-incompatibility mating systems, which are obligate outcrossers, thus requiring high mate availability to persist. In such situations, populations suffering decreased fitness could be rescued by: (a) improving local habitat conditions (habitat rescue), (b) increasing number individuals (demographic or (c) introducing new genetic variation (genetic rescue). this study, we used a spatially genetically explicit individual-based model approximate demography small (

Language: Английский

Citations

0