Genetic delineation of local provenance defines seed collection zones along a climate gradient

Hufford, Kristina M.; Veneklaas, Erik J.; Lambers, Hans; Krauss, Siegfried L.

doi:10.1093/aobpla/plv149

Cited by 10 publications

(11 citation statements)

References 69 publications

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“…The sites covered three out of four RoPs, while no population was selected in the high elevation RoP4. Reserve Selection Analysis has widely been applied at broad (continental) scale, for selecting in-situ conservation areas for endangered species (Van Zonneveld et al 2012, Vinceti et al 2013), but also for defining seed collection zones (Hufford et al 2016). Our findings support previous suggestions about ex-situ conservation and seed collection, confirming that material should come from geographically or ecologically distant populations to maximise the collection of genetic diversity (Whitlock et al 2016).…”

Section: Discussionsupporting

confidence: 85%

Delineation of seed collection zones based on environmental and genetic characteristics for Quercus suber L. in Sardinia, Italy

Dato¹,

Teani²,

Mattioni³

et al. 2018

iForest

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The assessment of seed zones or regions of provenance (RoP) to preserve local adaptation of tree species is an effective tool for the correct management of forest reproductive materials. The RoP for a species or sub-species is the area or group of areas subject to sufficiently uniform ecological conditions in which stands or seed sources show similar phenotypic or genetic characters, taking into account altitudinal boundaries where appropriate. However, the delineation of RoPs is commonly based on estimates of intrinsic environmental homogeneity, mainly climate and/or soil characteristics. The integration of genetic data into RoP maps is an important strategy to obtain a sound tool for managing forest reproductive materials. A study on Quercus suber (cork oak) in Sardinia (Italy) was carried out with the aim of determining ecological regions of provenance, investigating the genetic diversity among populations at the regional scale and identifying possible areas of interest for valorising the available germplasm. Identification of these areas was performed by Reserve Selection Analysis, which allows to identify priority areas by assessing the minimum number of sites required to include all the genetic diversity estimated by genetic analysis. Four spatial clusters were obtained based on environmental data: the northern and northern-eastern parts of the island were included in the Northern RoP; the second RoP covered the western part; and the third RoP enclosed the south-eastern region. The last group was distributed on the central part of the island (Central RoP) and includes the higher elevations. The sampled populations showed a low differentiation among populations and low diversity. According to the Reserve Selection Analysis, four conservation priority areas were identified. These indications can be useful at the local level because these sites can be proposed as stands for seed collection for future plantations.

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Section: Discussionsupporting

confidence: 85%

Delineation of seed collection zones based on environmental and genetic characteristics for Quercus suber L. in Sardinia, Italy

Dato¹,

Teani²,

Mattioni³

et al. 2018

iForest

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“…Some outlier loci were significantly associated with climate, edaphic and geographical variables, especially spring and winter precipitation, and phosphorus (P) concentration in the soil (Table 1 and Figure 3). Previous studies on plant species have reported correlations between both climate (rainfall/temperature) and geographical variables and outlier loci [89][90][91][92][93][94]. Temperature-linked spatial and temporal trends in AFLP frequency have also been reported for Fagus sylvatica L. [90], in which an association between AFLP and genecological prediction including 35 climate variables was observed.…”

Section: Aflp-environment Associationsmentioning

confidence: 76%

Modelling Shifts and Contraction of Seed Zones in Two Mexican Pine Species by Using Molecular Markers

Simental‐Rodriguez

Pérez-Luna

Hernández-Díaz

et al. 2021

Forests

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A seed zone or provenance region is an area within which plants can be moved with little risk of maladaptation because of the low environmental variation. Delineation of seed zones is of great importance for commercial plantations and reforestation and restoration programs. In this study, we used AFLP markers associated with environmental variation for locating and delimiting seed zones for two widespread and economically important Mexican pine species (Pinus arizonica Engelm. and P. durangensis Martínez), both based on recent climate conditions and under a predicted climate scenario for 2030 (Representative Concentration Pathway of ~4.5 Wm−2). We expected to observe: (i) associations between seed zones and local climate, soil and geographical factors, and (ii) a meaning latitudinal shift of seed zones, along with a contraction of species distributions for the period 1990–2030 in a northward direction. Some AFLP outliers were significantly associated with spring and winter precipitation, and with phosphorus concentration in the soil. According to the scenario for 2030, the estimated species and seed zone distributions will change both in size and position. Our modeling of seed zones could contribute to reducing the probabilities of maladaptation of future reforestations and plantations with the pine species studied.

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“…In a study using 16 provenances, [9] reported local provenance as the threshold at which geographic distance corresponds to statistically significant genetic distance. The seed transfer distance affects latitude and elevation [6] which in turn determines climatic conditions.…”

Section: Horizontal Growth Of C Procera Provenancesmentioning

confidence: 99%

“…To reduce the influence of seed transfer distance, local provenances are given the first priority in afforestation and restoration programmes. [8,9] stresses on the importance of observing provenance seed transfer distance during restoration activities. [10] investigated how far a plant material should be moved from home sites and remain ecologically appropriate in a restoration setting.…”

Section: Introductionmentioning

confidence: 99%

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The influence of seed transfer distance on the growth of Calotropis procera (ait) provenances in dry lands of South Eastern Kenya

Mutiso¹,

Kimiti²,

Muchugi³

et al. 2021

Magna Sci. Adv. Res. Rev.

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In a study to domesticate the species Calotropis procera, for wool production in drylands, investigations were done to determine the effects of seed transfer distance on the growth of the species in a typical farm setting. The objectives of the research were to determine the growth of three provenances of C. procera and to determine the influence of seed transfer distance on the growth parameters. Diameter and height data were used to generate horizontal and vertical growth curves respectively and further subjected to Duncan Multiple Range Test (DMRT) to isolate existence of significant differences across the three provenances. Pearson correlation analysis was used to establish existence of relationships across the growth parameters. Results showed that C. procera is a multi-stemmed plant. Duncan Multiple Range Test (DMRT) showed no significant statistical differences (p<0.5) in diameter growth though Pearson correlation analysis, showed strong positive correlations (Pearson, p<0.01) between branching and DBH Test of homogeneity of variances showed significant statistical differences (p<0.5) in vertical growth The study concluded that C. procera is a multi-stemmed plant that can reach a height of 4.48m and a diameter of 7.4cm in two years. It is recommended that C. procera seeds for raising nursery stock should be sourced from the nearest source possible. This will reduce the environmental and climatic effects associated with long distance seed transfers and ensure the species benefits from home-site advantages.

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Genetic delineation of local provenance defines seed collection zones along a climate gradient

Cited by 10 publications

References 69 publications

Delineation of seed collection zones based on environmental and genetic characteristics for Quercus suber L. in Sardinia, Italy

Delineation of seed collection zones based on environmental and genetic characteristics for Quercus suber L. in Sardinia, Italy

Modelling Shifts and Contraction of Seed Zones in Two Mexican Pine Species by Using Molecular Markers

The influence of seed transfer distance on the growth of Calotropis procera (ait) provenances in dry lands of South Eastern Kenya

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