scholarly journals Seed morphological traits as a tool to quantify variation maintained in ex situ collections: a case study in Pinus torreyana

AoB Plants ◽  
2021 ◽  
Vol 13 (5) ◽  
Author(s):  
Lionel N Di Santo ◽  
Monica Polgar ◽  
Storm Nies ◽  
Paul Hodgkiss ◽  
Courtney A Canning ◽  
...  
Keyword(s):  
Morphological Traits ◽  
Population Distribution ◽  
Seedling Emergence ◽  
Plant Conservation ◽  
Ex Situ ◽  
Trait Variation ◽  
Seed Collection ◽  
Seed Trait ◽  
Seed Collections ◽  
Pinus Torreyana

Abstract Understanding the within- and among-population distribution of trait variation within seed collections may provide a means to approximate standing genetic variation and inform plant conservation. This study aimed to estimate population- and family-level seed trait variability for existing seed collections of Torrey pine (Pinus torreyana), and to use these data to guide sampling of future collections. We quantified variation in 14 seed morphological traits and seedling emergence within and among Torrey pine populations. Using a simulation-based approach, we used estimates of within-population variance to assess the number of maternal families required to capture 95 % of trait variation within each existing seed collection. Substantial structure was observed both within and among Torrey pine populations, with island and mainland seeds varying in seed size and seed coat thickness. Despite morphological differences, seedling emergence was similar across populations. Simulations revealed that 83 % and 71 % of all maternal families within island and mainland seed collections respectively needed to be resampled to capture 95 % of seed trait variation within existing collections. From a conservation perspective, our results indicate that to optimize genetic diversity captured in Torrey pine seed collections, maximizing the number of maternal families sampled within each population will be necessary.

scholarly journals Seed morphology and emergence variability in a conservation collection of Pinus torreyana

2020 ◽  
Author(s):  
Lionel N Di Santo ◽  
Monica Polgar ◽  
Storm Nies ◽  
Paul Hodgkiss ◽  
Courtney A Canning ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Morphological Variation ◽  
Population Distribution ◽  
Seedling Emergence ◽  
Seed Morphology ◽  
Ex Situ ◽  
Trait Variation ◽  
Seed Collection ◽  
Seed Collections ◽  
Pinus Torreyana

ABSTRACTPREMISEOptimizing the amount of genetic diversity captured in seed collections is a long-standing objective of ex situ conservation. Particularly for rare species where limited genetic information is available, it poses a significant challenge. However, understanding the within and among population distribution of trait variation within seed collections may provide a means to approximate standing genetic variation and inform conservation efforts.METHODSWe quantified seed morphological variation and seedling emergence both within and among populations for existing seed collections of Torrey pine (Pinus torreyana), a critically endangered pine endemic to California. Using a simulation-based approach, we used estimates of within-population variance to estimate the number of maternal families required to captured 95% of trait variation within each existing seed collection.KEY RESULTSOn average, 21% and 22% of seed morphological variation in Torrey pine was explained by population origin and maternal family within populations respectively. Despite significant morphological differences, seedling emergence was similar across populations. Simulations revealed that 80% and 68% of all maternal families within island and mainland seed collection respectively needed to be resampled to ensure 95% of seed trait variation within existing collections was captured.CONCLUSIONSOverall, these results suggest that substantial structure exists for seed morphological traits both within and between populations. From a conservation perspective, this indicates that to optimize genetic diversity captured in Torrey pine ex situ conservation collections, maximizing the number of maternal families sampled within each population will be necessary.

scholarly journals Seed Exploration for Seed Banking Purpose in Cibodas Botanical Garden

2019 ◽  
Vol 11 (1) ◽  
pp. 162-170
Author(s):  
Musyarofah Zuhri ◽  
Dian Latifah ◽  
Fitri Kurniawati ◽  
Ikhsan Noviady ◽  
Yudi Suhendri
Keyword(s):  
Seed Bank ◽  
Plant Conservation ◽  
Botanical Garden ◽  
Iucn Red List ◽  
Global Strategy ◽  
Ex Situ ◽  
Seed Collection ◽  
Immature Seeds ◽  
Plant Collection ◽  
Orthodox Seeds

Due to contribution of Target 8 of the Global Strategy for Plant Conservation GSPC Botanic Gardens, Cibodas Seed Bank committed to increase its ex situ plant collection through seed banking. This research aimed to assess population and collect seeds from Cibodas remnant forests and its neighboring, Mt. Gede Pangrango National Park forest, for seed banking purpose. Thirty-two numbers of seeds belonging to fifteen families were collected. Two species were included in IUCN red list i.e. Saurauia cauliflora (vulnerable) and Magnolia blumei (least concern) and one species classified as endangered species by World Conservation Monitoring Unit (WCMC) i.e. Pinanga javana. Sixty-five percent population were possible to collect without affecting the availability of the seeds in the nature. Around a half of seeds were collected at natural dispersal stage to ensure the seed maturity. Ninety-one percent collected seeds were expected as orthodox seeds that can be stored in Cibodas Seed Bank and three species were recalcitrant and cannot be stored in Cibodas Seed Bank i.e. Calamus ciliaris, C. reinwardtii and Daemonorops rubra. Cut-test results showed 78% seed collected were full seeds, that were not infested, empty or immature seeds. This study provides information regarding the readiness of population for seed collection and species were collected and stored in Cibodas Seed Bank. 

scholarly journals Does integrated conservation of terrestrial orchids work?

Lankesteriana ◽  
2015 ◽  
Vol 7 (1-2) ◽  
Author(s):  
Nigel Swarts ◽  
Andrew Batty ◽  
Stephen Hopper ◽  
Kingsley Dixon
Keyword(s):  
Reproductive Biology ◽  
Population Distribution ◽  
Plant Conservation ◽  
Distribution Patterns ◽  
Ex Situ ◽  
Evolutionary Processes ◽  
Conservation Practice ◽  
Environmental Threats ◽  
Terrestrial Orchids ◽  
Integrated Conservation

Effective plant conservation involves careful con- sideration and difficult choices when investing limit- ed resources to conservation programs and policies. The conservation practice must integrate the under- standing of existing and future environmental threats, taxonomic distinctiveness, numbers of individuals in populations, reproductive biology, ex situ propagation and the maintenance of evolutionary processes influ- encing population distribution patterns. 

scholarly journals Experimental sand burial affects seedling survivorship, morphological traits, and biomass allocation of <i>Ulmus pumila</i> var. <i>sabulosa</i> in the Horqin Sandy Land, China

Solid Earth ◽  
2016 ◽  
Vol 7 (4) ◽  
pp. 1085-1094 ◽  
Author(s):  
Jiao Tang ◽  
Carlos Alberto Busso ◽  
Deming Jiang ◽  
Ala Musa ◽  
Dafu Wu ◽  
...  
Keyword(s):  
Biomass Allocation ◽  
Morphological Traits ◽  
Seedling Emergence ◽  
Relative Mass ◽  
Seedling Height ◽  
Horqin Sandy Land ◽  
Sandy Land ◽  
Ulmus Pumila ◽  
Sand Burial ◽  
Seedling Survivorship

Abstract. As a native tree species, Ulmus pumila var. sabulosa (sandy elm) is widely distributed in the Horqin Sandy Land, China. However, seedlings of this species have to withstand various depths of sand burial after emergence because of increasing soil degradation, which is mainly caused by overgrazing, climate change, and wind erosion. An experiment was conducted to evaluate the changes in its survivorship, morphological traits, and biomass allocation when seedlings were buried at different burial depths: unburied controls and seedlings buried vertically up to 33, 67, 100, or 133 % of their initial mean seedling height. The results showed that partial sand burial treatments (i.e., less than 67 % burial) did not reduce seedling survivorship, which still reached 100 %. However, seedling mortality increased when sand burial was equal to or greater than 100 %. In comparison with the control treatment, seedling height and stem diameter increased at least by 6 and 14 % with partial burial, respectively. In the meantime, seedling taproot length, total biomass, and relative mass growth rates were at least enhanced by 10, 15.6, and 27.6 %, respectively, with the partial sand burial treatment. Furthermore, sand burial decreased total leaf area and changed biomass allocation in seedlings, partitioning more biomass to aboveground organs (e.g., leaves) and less to belowground parts (roots). Complete sand burial after seedling emergence inhibited its re-emergence and growth, even leading to death. Our findings indicated that seedlings of sandy elm showed some resistance to partial sand burial and were adapted to sandy environments from an evolutionary perspective. The negative effect of excessive sand burial after seedling emergence might help in understanding failures in recruitments of sparse elm in the study region.

scholarly journals The Role of Gardens in Integrated Conservation Practice

2019 ◽  
pp. 177-188
Author(s):  
Audrey Denvir ◽  
Jeannine Cavender-Bares ◽  
Antonio González-Rodríguez
Keyword(s):  
Plant Conservation ◽  
Ex Situ ◽  
Conservation Practice ◽  
Integrated Research ◽  
Academic Researchers ◽  
Conservation Plan ◽  
Species Specific ◽  
Integrated Conservation

Gardens and horticulturists play an increasingly important role in plant conservation, both in situ and ex situ. Integrated research and conservation of species intends to work across fields to connect science to conservation practice by engaging actors from different sectors, including gardens. The case of integrated conservation of Quercus brandegeei, a microendemic oak species in Baja California Sur, Mexico, is presented as an example of a collaboration between gardens and academic researchers to create a species-specific conservation plan that incorporates horticultural knowledge.

scholarly journals Hue and cry for Fritillaria cirrhosa D.Don, a threatened medicinal plant in the Western Himalaya

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Manisha Mathela ◽  
Amit Kumar ◽  
Monika Sharma ◽  
Gurinderjit Singh Goraya
Keyword(s):  
Medicinal Plant ◽  
Population Decline ◽  
Plant Conservation ◽  
Western Himalaya ◽  
Ex Situ ◽  
Conservation Strategies ◽  
Market Demand ◽  
Wild Populations ◽  
Threatened Medicinal Plant ◽  
Fritillaria Cirrhosa

AbstractThe unique Himalayan ecosystems are repositories to the wild populations of diverse flora and fauna. The high value medicinal and aromatic plant species (MAPs) are an example of the same. Since time immemorial, these MAPs have been traditionally used by the local inhabitants and have eventually developed a high market value all over the world. Increasing market demand engenders over-extraction of species, unsustainable collection further catalyses decline in wild populations. The current communication raises high conservation concern on the rapid population decline of Fritillaria cirrhosa D.Don in the Western Himalaya. Harvested and traded with a new trade name i.e., ‘Jangli lehsun’ probably to disguise common Allium species, the species is facing tremendous decline in wild populations due to its illegal harvesting and trade in Himachal Pradesh. Further, F. cirrhosa faces threat due to unorganized, over-extraction, unsustainable and premature harvesting of the bulbs, coupled with illegal hidden markets functioning parallelly. Considering that this valuable species is under multiple threats being a medicinally important plant, priority should be given for its conservation through in-situ such as identification of medicinal plant conservation areas and ex-situ methods for its propagation and multiplication. Further, to ensure the long-term conservation of Fritillaria cirrhosa, prioritized conservation strategies such as strengthening of the Biodiversity Management Committees, capacity building through awareness programs for the key stakeholders and sustainable harvesting would be the practical solution.

scholarly journals THE PORTUGUESE NATIONAL INVENTORY ON PLANT GENETIC RESOURCES 2018 - DEVELOPMENT AND STATUS

2018 ◽  
Vol 6 (11) ◽  
pp. 109-120
Author(s):  
Filomena Rocha
Keyword(s):  
Genetic Resources ◽  
Plant Genetic Resources ◽  
National Level ◽  
Fruit Trees ◽  
Grain Legumes ◽  
Ex Situ ◽  
Seed Collection ◽  
National Inventory ◽  
Cultivated Species ◽  
Global Platform

Since the 1970s, Portugal has been endeavouring systematic and coordinated efforts for ex situ conservation of plant genetic resources. Portugal maintains in ex situ a large seed collection of cultivated species (cereals, fibres, grain legumes, vegetables), wild species (forages, MAP species), also national clone collections of olive, fruit trees and grapes. In 2011 the Portuguese National Genebank (BPGV) and ISOPLEXIS implemented the GRIN-Global platform, as provides the opportunity to increase data quality, to have long term sustainability for data curation, integrates all collections in one management system optimizing the costs and staff resources. Now, the main objective in Portugal is to implement the Grin Global Platform at the national level to consolidate its National Programme of Plant Genetic Resources (NPPGR) with all national partners directly involved in the conservation of PGR. The main objectives of this communication are: to demonstrate the valuable contribution of the Grin-Global platform to the NPPGR; discuss the development and status of the Portugal’s National Inventory 2018 in EURISCO, analyse the evolution of the amount of passport information in EURISCO from 2015 to 2018; to address the steps that are being taken in Portugal for the Implementation of the Grin-Global Platform at the national level.

scholarly journals Building a Global System for the Conservation of all Plant Diversity

2016 ◽  
pp. 5-13
Author(s):  
Paul Smith
Keyword(s):  
Plant Species ◽  
Plant Diversity ◽  
Plant Conservation ◽  
Professional Community ◽  
Cost Effective ◽  
Global Network ◽  
Ex Situ ◽  
Botanic Gardens ◽  
Global System ◽  
Wide Range

Botanic gardens and arboreta offer the opportunity to conserve and manage a wide range of plant diversity ex situ, and in situ in the broader landscape. The rationale that botanic gardens have a major role to play in preventing plant species extinctions is based on the assumptions that (1) there is no technical reason why any plant species should become extinct, and (2) that, as a professional community, botanic gardens possess a unique set of skills that encompass finding, identifying, collecting, conserving and growing plant diversity across the entire taxonomic spectrum. Botanic Gardens Conservation International (BGCI) is the pivotal centre of a global network of c. 2,600 botanic gardens and arboreta, which includes living collections representing at least one-third of known plant diversity; world class seed banks, glasshouses and tissue culture infrastructures; and technical knowledge networks covering all aspects of plant conservation. Following the example of the crop conservation community, BGCI is promoting the concept of a cost-effective, rational,botanic garden-centred Global System for the conservation and management of plant diversity.This system will aim to collect, conserve, characterise and cultivate samples from all of the world’s rare and threatened plants as an insurance policy against their extinction in the wild and as a source of plant material for human innovation, adaptation and resilience.

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