A conservation genomics workflow to guide practical management actions

Global Ecology and Conservation, Год журнала: 2021, Номер 26, С. e01492 - e01492

Опубликована: Фев. 15, 2021

Owing to decreasing costs and increased efficiency, it is now conceivable that conservation genomic information can be used improve the effectiveness of recovery programs for many, if not most, threatened plants. We suggest a simple study viewed as an initial step in decision-making, informs long-term efforts various ways. present biodiversity managers biologists with simple, standardized workflow research guide efficient collection, analysis application across disparate Using two case studies, 'Banksia vincentia' Daphnandra johnsonii, we demonstrate how single round genotyping by sequencing – one-time cost produces multiple directly applicable benefits, generating early possible enhance outcomes. argue shift away from asking whether needed or justified, towards consideration questions need addressed. Such should aimed at cost-effectively guiding practical aspects plant's management plan. The presented here help relevant stakeholders design sampling strategy suits their needs.

Язык: Английский

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The Genetic Component of Seagrass Restoration: What We Know and the Way Forwards

Water, Год журнала: 2021, Номер 13(6), С. 829 - 829

Опубликована: Март 18, 2021

Seagrasses are marine flowering plants providing key ecological services and functions in coasts estuaries across the globe. Increased environmental changes fueled by human activities affecting their existence, compromising natural habitats ecosystems’ biodiversity functioning. In this context, restoration of disturbed seagrass environments has become a worldwide priority to reverse ecosystem degradation recover functionality associated services. Despite proven importance genetic research perform successful projects, aspect often been overlooked restoration. Here, we aimed provide comprehensive perspective aspects related To end, first reviewed studying diversity population structure target populations; then, discussed pros cons different approaches used restore and/or reinforce degraded populations. general, collection information development connectivity maps critical steps for any activity. Traditionally, selection donor preferred use local gene pools, thought be best adapted current conditions. However, face rapid ocean changes, alternative such as climate-adjusted or admixture genotypes might more sustainable options secure survival restored meadows. Also, transplantation strategies applied seagrasses emphasized long-term monitoring The newly developed on epigenetics well application assisted evolution were also explored. Finally, view legal ethical issues national international management is included, highlighting improvements potential new directions integrate with assessment. We concluded that good effort should incorporate: (1) understanding both donors populations being restored; (2) analysis conditions disturbances affect site (3) adaptation constraints influencing performances native plants; (4) integration distribution/connectivity factors relative (5) planning programs assess performance inclusion epigenetic knowledge strongly hoped future.

Язык: Английский

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Identifying predictors of translocation success in rare plant species

Conservation Biology, Год журнала: 2023, Номер 38(2)

Опубликована: Сен. 28, 2023

The fundamental goal of a rare plant translocation is to create self-sustaining populations with the evolutionary resilience persist in long term. Yet, most syntheses focus on few factors influencing short-term benchmarks success (e.g., survival and reproduction). Short-term can be misleading when trying infer future growth viability because that promote establishment may differ from those required for long-term persistence. We assembled large (n = 275) broadly representative data set well-documented monitored (7.9 years average) at-risk translocations identify important site attributes, management techniques, species' traits six life-cycle population metrics success. used random forest algorithm quantify relative importance 29 predictor variables each metric Drivers outcomes varied across time frames metrics. Management techniques had greatest influence attainment trends, whereas attributes were more persistence trends. Specifically, founder sizes increased potential reproduction recruitment into next generation, declining habitat quality outplanting species low seed production led extinction risks reduction reproductive output long-term, respectively. also detected novel interactions between some drivers, such as an probability next-generation greater rates, but only coupled sizes. Because significant barriers overcome by improving or resolving site-level issues through early intervention management, we suggest combining monitoring adaptive programs enhance prospects achieving

Язык: Английский

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Conserving Evolutionary Potential: Combining Landscape Genomics with Established Methods to Inform Plant Conservation

Annual Review of Plant Biology, Год журнала: 2024, Номер 75(1), С. 707 - 736

Опубликована: Апрель 10, 2024

Biodiversity conservation requires conserving evolutionary potential-the capacity for wild populations to adapt. Understanding genetic diversity and dynamics is critical informing decisions that enhance adaptability persistence under environmental change. We review how emerging landscape genomic methods provide plant programs with insights into dynamics, including local adaptation its drivers. Landscape approaches explore relationships between variation environments complement rather than replace established population common garden assessing adaptive phenotypic variation, structure, gene flow, demography. Collectively, these inform actions, rescue, maladaptation prediction, assisted flow. The greatest on-the-ground impacts from such studies will be realized when practitioners are actively engaged in research monitoring. the shaping of species an uncertain future.

Язык: Английский

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Guidelines for genetic monitoring of translocated plant populations

Conservation Biology, Год журнала: 2020, Номер 36(1)

Опубликована: Ноя. 25, 2020

Plant translocation is a useful tool for implementing assisted gene flow in recovery plans of critically endangered plant species. Although it helps to restore genetically viable populations, not devoid genetic risks, such as poor adaptation transplants and outbreeding depression the hybrid progeny, which may have negative consequences terms demographic growth fitness. Hence, follow-up monitoring should evaluate whether translocated populations are self-sustaining short long term. The causes failure adjust management responses also need be identified. Molecular markers fitness-related quantitative traits can used determine enhanced diversity, increased fitness, improved probability long-term survival. We devised guidelines illustrated them with studies from literature help practitioners appropriate survey methods so that practices better integrate evolutionary processes. These include sampling assessing changes diversity differentiation, contemporary flow, mode local recruitment, admixture level, effects rescue, inbreeding or on changes.Directrices para el Monitoreo Genético de Poblaciones Plantas Translocadas Resumen La translocación plantas es una herramienta útil implementar flujo génico asistido en los planes recuperación especies peligro crítico. Aunque ayuda restaurar poblaciones genéticamente viables, no está exento riesgos genéticos, como la baja adaptación trasplantes y depresión por exogamia progenie híbrida, que pueden tener consecuencias negativas términos crecimiento demográfico adaptabilidad las plantas. Por tanto, un monitoreo genético seguimiento debería evaluar si translocadas son viables autosustentables corto largo plazos. Las causas del fracaso al ajustar respuestas manejo también deben ser identificadas. Se utilizar marcadores moleculares atributos relacionados con determinar aumentó diversidad genética, incrementó mejoró probabilidad supervivencia plazo. Diseñamos directrices ilustramos estudios literatura ayudar practicantes determinen métodos adecuados prácticas integren procesos evolutivos mejor manera. Estas incluyen muestrear cambios diferenciación genética; contemporáneo; forma reclutamiento local; nivel mezcla; efectos rescate genético, endogamia o sobre genéticos

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Impacts of ecological restoration on the genetic diversity of plant species: A global meta‐analysis

Journal of Applied Ecology, Год журнала: 2023, Номер 60(6), С. 1149 - 1160

Опубликована: Апрель 12, 2023

Abstract In contrast to the depth of knowledge available for enhancement plant species diversity and ecosystem services through ecological restoration, our understanding how restoration impacts genetic (GD) has not yet been synthesized. We performed a global meta‐analysis examine whether improved GD in restored populations. First, we compared populations with reference or degraded Second, explored influence on varies between different characteristics (life form threat status), strategies (active/passive, seeding/planting, mixture/non‐mixture) times (<50 ≥ 50 years; an average 29.3 years). The was significantly lower ( H E , 1.06%; PPB 5.10%, SWI 4.95%) than but comparable inbreeding coefficient F IS proportion by which heterozygosity individual is reduced inbreeding) consistently Woody herbs forest grassland had Passive active seeding rather planting, mixing materials from sources using single source, all increased When time ≥50 years, <50 Synthesis applications . general, did improve This might be due part relatively short time. Using passive seeding, mixed could increase emphasize that should treated as minor cobenefit other purposes recovery listed vital goal future species.

Язык: Английский

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Taxonomic and genetic assessment of disjunct populations of the threatened plant Arnica montana (Asteraceae) from central France

Perspectives in Plant Ecology Evolution and Systematics, Год журнала: 2025, Номер 67, С. 125873 - 125873

Опубликована: Апрель 30, 2025

Язык: Английский

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DdRAD sequencing of the endangered species Primula Palinuri Petagna reveals high levels of inter-population diversity

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Апрель 30, 2025

Population genetics studies provide information regarding genetic diversity and structure of populations. This can in turn be used to inform conservation strategies. In view programmed efforts, we aimed at investigating the composition Primula palinuri Petagna, an endemic vulnerable species Southern Italy. Ninety-one individuals P. from seven populations were investigated using double digest Restriction Associated DNA sequencing (ddRAD-seq) a total 99,014 Single nucleotide polymorphisms (SNPs) identified. Low levels heterozygosity (0.08-0.12) high kinship (0.20-0.30) inbreeding (0.34-0.49) detected all study Kinship computed irrespective population was low, suggesting that level inter-population relatedness is low. Analysis showed differentiated each other formed three major clusters, broadly corresponding geographic sampling locations. We identified SNPs mostly contributing separation reduced set 40 successfully discriminate between clusters. conclusion, our shows sampled have low heterozygosity, intra-population variability variability.

Язык: Английский

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Conservation genetics of the threatened wetland plant Eriocaulon nudicuspe: application of GRAS-Di sequencing technology and implications for restoration

Conservation Genetics, Год журнала: 2025, Номер unknown

Опубликована: Май 30, 2025

Язык: Английский

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Assessing Population Genetic Status for Designing Plant Translocations

Frontiers in Conservation Science, Год журнала: 2022, Номер 3

Опубликована: Фев. 7, 2022

Assisted gene flow interventions such as plant translocations are valuable complementary techniques to habitat restoration. Bringing new genetic variants can contribute increasing diversity and evolutionary resilience, counteract inbreeding depression improve fitness through heterosis. Large, highly genetically variable populations usually recommended sources for translocation. Unfortunately, many critically endangered species only occur small populations, which expected show low variation, high level, paucity of compatible mates in self-incompatible species, increased divergence. Therefore, assessment population status is required an appropriate choice the source populations. In this paper, we exemplify different analyses relevant evaluation combining both molecular (plastid nuclear) markers fitness-related quantitative traits. We assessed adult generation their seed progeny (the potential translocation founders) Campanula glomerata (Campanulaceae), a insect-pollinated herbaceous Belgium. Only few remain, so that has been part restoration project calcareous grasslands implementing translocations. particular, estimated diversity, levels, structure adults progeny, recent bottlenecks, clonal extent adults, contemporary flow, effective size ( N e ), parentage, sibship variation. Small C. presented extensive pollen within with multiple parentage among progenies, could be good candidates As differentiated from each other, mixing will not optimize number translocated but also representativeness regional diversity. Genetic no immediate threat persistence, , restricted among-population evidence processes leading erosion, require management measures these trends stochastic vulnerability. Habitat facilitating recruitment, flowering pollination, reconnecting by biological corridors or stepping stones, creating protected areas particularly recommended.

Язык: Английский

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