Enhancing the conservation of crop wild relatives in Scotland

Fielder, Hannah; Smith, C.; Ford‐Lloyd, B. V.; Maxted, Nigel

doi:10.1016/j.jnc.2015.11.002

Cited by 12 publications

(7 citation statements)

References 21 publications

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“…However, few studies on genetic diversity or taxonomic spatial distribution describe robust methods to ensure the quality of geo-referenced data. Some authors, such as Fielder et al (2015) and Fielder et al (2016) , excluded records dated from before 1970, records lacking both coordinates and location descriptions and records with a precision lower than 4 km 2 . Ramírez-Villegas et al (2010) carried out a process to verify and correct the coordinates using BioGeomancer, Google Earth and highly detailed maps.…”

Section: Discussionmentioning

confidence: 99%

Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity

García¹,

Parra‐Quijano

Iriondo

2017

PeerJ

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Drought, one of the most important abiotic stress factors limiting biomass, significantly reduces crop productivity. Salinization also affects the productivity of both irrigated and rain-fed wheat crops. Species of genus Aegilops can be considered crop wild relatives (CWR) of wheat and have been widely used as gene sources in wheat breeding, especially in providing resistance to pests and diseases. Five species (Ae. biuncialis, Ae. geniculata, Ae. neglecta, Ae. triuncialis and Ae. ventricosa) are included in the Spanish National Inventory of CWRs. This study aimed to identify ecogeographic gaps in the Spanish Network on Plant Genetic Resources for Food and Agriculture (PGRFA) with potential tolerance to drought and salinity. Data on the Spanish populations of the target species collected and conserved in genebanks of the Spanish Network on PGRFA and data on other population occurrences in Spain were compiled and assessed for their geo-referencing quality. The records with the best geo-referencing quality values were used to identify the ecogeographical variables that might be important for Aegilops distribution in Spain. These variables were then used to produce ecogeographic land characterization maps for each species, allowing us to identify populations from low and non-represented ecogeographical categories in ex situ collections. Predictive characterization strategy was used to identify 45 Aegilops populations in these ecogeographical gaps with potential tolerance to drought and salinity conditions. Further efforts are being made to collect and evaluate these populations.

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Section: Discussionmentioning

confidence: 99%

Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity

García¹,

Parra‐Quijano

Iriondo

2017

PeerJ

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“…While the total cost of conservation under the diversity maximising goal was estimated at $9.2k per year across two ecoregions, if this estimate were extrapolated to cover all ten ecoregions in Zambia (upper bound) or five ecoregions (lower bound) then the costs for establishing a national (onfarm) conservation network would range from $41,250 to $82,500 per year 11 . The latter is likely an overestimate since Brown and Briggs (1991) and Fielder et al (2016) note conserving each CWR at a minimum of five different ecoregions should suffice. In any case we suggest this is a relatively modest sum as it only amounts to between 0.5% and 0.9% of income generated by the Zambian Wildlife Authority (Lindsey et al, 2014).…”

Section: National Scale Cwr Conservationmentioning

confidence: 99%

Estimating in situ conservation costs of Zambian crop wild relatives under alternative conservation goals

et al. 2019

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Crop wild relatives (CWR) are a globally threatened group of plants, harbouring valuable genes that are sometimes used to enhance commercial crop varieties and landraces. A lack of recognition in national planning for biodiversity conservation has resulted in inadequate CWR conservation strategies, particularly in situ. There is little information on in situ conservation costs, and this paper uses a payment for agrobiodiversity conservation services (PACS) approach to estimate the in situ costs of conserving CWR in Zambia, where 30 CWR have been prioritised for conservation (of which nine are present in our sample). Competitive tender bid offers were elicited from farmers willing to accept compensation for providing a CWR conservation service. Using data from 26 communities we determined the on-farm cost of conserving CWR, specifically in field margins/borders. Heterogeneity was evident in farmer bid offers, suggesting discriminatory price mechanisms can potentially deliver cost savings over uniform payment rules. Selection of bid offers under four different conservation goals using a binary linear programming (BLP) model reveals conservation costs ranging from US$ 23 to 91/ha per year. An untargeted area goal provided a least-cost procurement of conservation services ($ 2.3 k per year), followed by a targeted area goal ($ 5.9 k per year). The cost of selecting conservation sites increased when other constraints were added to the BLP model, including those concerning social equity ($ 6.4 k per year), and diversity ($ 9.2 k per year) goals. Overall, the findings suggest the use of competitive tenders, coupled with CWR data and BLP modelling, can potentially add much to improve the efficiency of in situ CWR conservation.

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“…avoid crossed pollination and they are eradicated to establish organic coffee plantations [104]. The improvement of different varieties that replaced old landraces produced genetic erosion, increased the incidence of pests and diseases due to the lack of genetic diversity within the cucurbit gene pool and abiotic stress [107] [108]. The genetic erosion of chayote is boosted through the inbreeding and usage of cloned plants in orchids increasing the incidence of viruses and fungal plants infected [101].…”

Section: Sechiumedule a Prominent Nucusmentioning

confidence: 99%

The Cytological Studies on Neglected and Underutilized Cucurbit Species with Special Reference to Chayote, an Under-Exploited Species

Olvera-Vazquez¹,

Cadena-Íñiguez²,

Gilani³

et al. 2019

AJPS

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Cucurbitaceae family contains important economic and medical crops, they can be divided into two categories according to the worldwide consumption, use, and production. The Cucurbit Popular Crops (CuPoC) are comprised of cucumber, the Cucurbita group (pumpkin and squash), melon and watermelon. On the other hand, Neglected and Underutilized Cucurbit Species (NU-CuS) group has been used as food sources, medicinal properties and elements in the elaboration of different types of items. The NUCuS is represented in this review work by bitter gourd, bottle gourd, chayote, ridge gourd, and snake gourd, which are recognized mainly in Asia. The center of origin of the majority of NUCuS was proposed to be in the Old World. In contrast, the origin of chayote or Sechiumedule (Jacq.) Sw. was suggested in the New World, precisely in Mesoamerican region based on linguistic uses and distribution of wild relatives. The environmental factors along with artificial selection, production systems and traditional knowledge have been influenced the evolutionary history of NUCuS, Infraspecific variation of chayote has been reported in Mexico over-described varietal groups. These descriptors were determined based on biochemical and morpho-structural traits; however, cytogenetic analyses are scarce. Specifically, chromosome and nuclear content analyses are important to support botanical groups, analyze artificial selection history, developing breeding and conservation programs. The present review paper discusses agronomic and evolutionary importance based on cytological evidence in NUCuS, mainly in the prominent chayote; with the perspective to prompt breeding, conservation, cytology, structural and functional genomics research for its sustainable utilization.

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Enhancing the conservation of crop wild relatives in Scotland

Cited by 12 publications

References 21 publications

Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity

Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity

Estimating in situ conservation costs of Zambian crop wild relatives under alternative conservation goals

The Cytological Studies on Neglected and Underutilized Cucurbit Species with Special Reference to Chayote, an Under-Exploited Species

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