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article

Small but connected islands can maintain populations and genetic diversity under climate change

Matthew M. Smith, Jonathan N. Pauli

Ecography > 2024 > 7 > n/a - n/a

In response to the striking effects of environmental change, conservation strategies often include the identification of conservation areas that can effectively maintain vulnerable species. Consequently, identifying system‐specific conditions that maintain the demographic and genetic viability of species of conservation concern is essential. Connectivity plays a critical role in the persistence of...

article

Kelp breeding in China: Challenges and opportunities for solutions

Zi‐Min Hu, Ti‐Feng Shan, Quan‐Sheng Zhang, Fu‐Li Liu, more

Reviews in Aquaculture > 16 > 2 > 855 - 871

Breeding has played an important role in the mariculture and industrialization of kelp in China. However, the current kelp breeding systems in China have encountered some problems relating to germplasm diversity, management, technological innovations, and regional co‐operation. This review summarizes the main challenges, such as top‐down and fragmented management of germplasm libraries, as well as...

article

The status and role of genetic diversity of trees for the conservation and management of riparian ecosystems: A European experts' perspective

Filip Alimpić, Jelena Milovanović, Remigiusz Pielech, Georgi Hinkov, more

Journal of Applied Ecology > 59 > 10 > 2476 - 2485

Riparian vegetation supports high biodiversity providing many services and is, therefore, an important landscape element. Riparian ecosystems are subject to numerous pressures leading to population decline and genetic erosion of riparian plants. This may have cascading effects at various ecosystem levels, including decreasing ecosystem services, so identifying the current status of genetic diversity...

article

Genetic diversity and disease: The past, present, and future of an old idea

Amanda Kyle Gibson

Evolution > 76 > S1 > 20 - 36

Why do infectious diseases erupt in some host populations and not others? This question has spawned independent fields of research in evolution, ecology, public health, agriculture, and conservation. In the search for environmental and genetic factors that predict variation in parasitism, one hypothesis stands out for its generality and longevity: genetically homogeneous host populations are more...

article

Not out of the woods yet: Signatures of the prolonged negative genetic consequences of a population bottleneck in a rapidly re‐expanding wader, the black‐faced spoonbill Platalea minor

Shou‐Hsien Li, Yang Liu, Chia‐Fen Yeh, Yuchen Fu, more

Molecular Ecology > 31 > 2 > 529 - 545

The long‐term persistence of a population which has suffered a bottleneck partly depends on how historical demographic dynamics impacted its genetic diversity and the accumulation of deleterious mutations. Here we provide genomic evidence for the genetic effect of a recent population bottleneck in the endangered black‐faced spoonbill (Platalea minor) after its rapid population recovery. Our data suggest...

article

History, demography and genetic status of Balkan and Caucasian Lynx lynx (Linnaeus, 1758) populations revealed by genome‐wide variation

Enrico Bazzicalupo, Maria Lucena‐Perez, Daniel Kleinman‐Ruiz, Aleksandar Pavlov, more

Diversity and Distributions > 28 > 1 > 65 - 82

Aim Genome‐wide genetic data can provide key input for both taxonomy and conservation, but its use in this context remains limited. In this study, we performed the first genome‐wide assessment of genetic variation in two populations of the Eurasian lynx, the Balkan population, the most threatened, and the Caucasian population, a possible glacial refugium, with the aim to place them in the context...

article

Meta‐analysis of genetic representativeness of plant populations under ex situ conservation in contrast to wild source populations

Xinzeng Wei, Mingxi Jiang

Conservation Biology > 35 > 1 > 12 - 23

Ex situ conservation is widely used to protect wild plant species from extinction. However, it remains unclear how genetic variation of ex situ plant collections reflects diversity of wild source populations. We conducted a global meta‐analysis of the genetic representativeness of ex situ populations by comparing genetic diversity (i.e., AR, allelic richness; H_e, expected heterozygosity; PPB, percent...

article

The impact of anthropogenic disturbances on the genetic diversity of terrestrial species: A global meta‐analysis

Juliana M. Almeida‐Rocha, Leiza A.S.S. Soares, Edyla R. Andrade, Fernanda A. Gaiotto, more

Molecular Ecology > 29 > 24 > 4812 - 4822

Human activities are primarily responsible for habitat loss and changes in natural environments around the world. It has been suggested that populations inhabiting human‐modified landscapes experience reduced gene flow, inbreeding depression, and loss of alleles due to genetic drift. However, empirical evidence shows the contrasting effects of anthropogenic disturbances on the genetic diversity of...

article

The abandonment of maize landraces over the last 50 years in Morelos, Mexico: a tracing study using a multi-level perspective

Francis Denisse McLean-Rodríguez, Tania Carolina Camacho-Villa, Conny J. M. Almekinders, Mario Enrico Pè, more

Agriculture and Human Values > 2019 > 36 > 4 > 651-668

Understanding the causes of maize landrace loss in farmers’ field is essential to design effective conservation strategies. These strategies are necessary to ensure that genetic resources are available in the future. Previous studies have shown that this loss is caused by multiple factors. In this longitudinal study, we used a collection of 93 maize landrace accessions from Morelos, Mexico, and stored...

article

Paternity analysis reveals constraints on hybridization potential between native and introduced bluebells (Hyacinthoides)

D. D. Kohn, M. Ruhsam, P. E. Hulme, S. C. H. Barrett, more

Conservation Genetics > 2019 > 20 > 3 > 571-584

The native UK bluebell Hyacinthoides non-scripta is considered to be at risk from hybridization with naturalised non-native bluebells. The non-natives, likely to be hybrid themselves (H. x massartiana) between H. non-scripta and H. hispanica, occur in relatively small numbers throughout the UK range of natives. Full interfertility between taxa has been repeatedly asserted in reporting spread of non-natives...

article

Following Vavilov’s expeditions, Sardinia (Italy)

Igor Loskutov, Ignazio Camarda, Antonello Brunu

Genetic Resources and Crop Evolution > 2019 > 66 > 3 > 569-577

This article is based on historical records of N.I. Vavilov’s organization of an exploration of Sardinia (Italy) in the year 1927 through his assistant N.M. Gaisinsky and on results of a recent exploration jointly conducted by the University of Sassari and the N.I Vavilov Institute of Plant Genetic Resources (VIR) in 2012. By tracking and revisiting, the places visited in Sardinia by Gaisinsky and...

article

Sex ratio rather than population size affects genetic diversity in Antennaria dioica

C. Rosche, K. Schrieber, S. Lachmuth, W. Durka, more

Plant Biology > 20 > 4 > 789 - 796

Habitat fragmentation and small population size can lead to genetic erosion in threatened plant populations. Classical theory implies that dioecy can counteract genetic erosion as it decreases the magnitude of inbreeding and genetic drift due to obligate outcrossing. However, in small populations, sex ratios may be strongly male‐ or female‐biased, leading to substantial reductions in effective...

article

Genetic relationships among Vietnamese local pigs investigated using genome‐wide SNP markers

S. Ishihara, A. Arakawa, M. Taniguchi, Q. M. Luu, more

Animal Genetics > 49 > 1 > 86 - 89

Vietnam is one of the most important countries for pig domestication, and a total of 26 local breeds have been reported. In the present study, genetic relationships among the various pig breeds were investigated using 90 samples collected from local pigs (15 breeds) in 15 distantly separated, distinct areas of the country and six samples from Landrace pigs in Hanoi as an out‐group of a common Western...

article

Inbreeding in the exploited limpet Patella aspera across the Macaronesia archipelagos (NE Atlantic): Implications for conservation

João Faria, Alfonso Pita, Gustavo M. Martins, Pedro A. Ribeiro, more

Fisheries Research > 2018 > 198 > C > 180-188

The genetic erosion of populations exposed to human exploitation plays a detrimental role on a species ability to adapt to changing environmental conditions. The Macaronesia (NE Atlantic) endemic limpet Patella aspera (Röding 1798) has been subject to overexploitation throughout its geographic distribution. We analysed 841 limpet specimens from eleven islands across the archipelagos of Azores, Madeira...

article

‘Intentional Genetic Manipulation’ as a conservation threat

Isa-Rita M. Russo, Sean Hoban, Paulette Bloomer, Antoinette Kotzé, more

Conservation Genetics Resources > 2019 > 11 > 2 > 237-247

Wildlife ranching including the hunting, collection, sales and husbandry of wild animals in captivity, is practised worldwide and is advocated as an approach towards the conservation of wild species. While many authors have explored the biological impacts of intensive wild population management, primarily with respect to disease transmission (especially in ungulates and fish), the evolutionary and...

article

Analysis of the biodiversity of hawthorn (Crataegus spp.) from the morphological, molecular, and ethnobotanical approaches, and implications for genetic resource conservation in scenery of increasing cultivation: the case of Mexico

Marcela Betancourt-Olvera, Raúl Nieto-Ángel, Beatriz Urbano, Fernando González-Andrés

Genetic Resources and Crop Evolution > 2018 > 65 > 3 > 897-916

One hundred and forty Mexican hawthorn (Crataegus spp.) accessions from six regions are preserved at the BGT-UACH germplasm bank (Mexico), comprising the most comprehensive living collection of Mexican hawthorns with different degrees of human management. The objective of this study was to assess the biodiversity of this valuable collection from morphological, molecular (microsatellite), and ethnobotanical...

article

Population genetic structure and hybridization patterns in the cryptic sister species Chironomus riparius and Chironomus piger across differentially polluted freshwater systems

João A.M. Pedrosa, Berardino Cocchiararo, Tiago Verdelhos, Amadeu M.V.M. Soares, more

Ecotoxicology and Environmental Safety > 2017 > 141 > C > 280-289

Chironomids are an integral and functionally important part of many freshwater ecosystems. Yet, to date, there is limited understanding of their microevolutionary processes under chemically polluted natural environments.In this study, we investigated the genetic variation within populations of the ecotoxicological model species Chironomus riparius and its cryptic sister species Chironomus piger at...

article

The role of genetic diversity and past-history selection pressures in the susceptibility of Chironomus riparius populations to environmental stress

João A.M. Pedrosa, Berardino Cocchiararo, Maria D. Bordalo, Andreia C.M. Rodrigues, more

Science of The Total Environment > 2017 > 576 > C > 807-816

Natural populations experiencing intense selection and genetic drift may exhibit limited potential to adapt to environmental change. The present study addresses the following aspects of the “genetic erosion” hypothesis in the midge Chironomus riparius: does long-term mercury (Hg) contamination affect the Hg tolerance of midge populations inhabiting such impacted areas? If so, is there any fitness...

article

The current state of steppe perennial plants populations: A case study on Iris pumila

Ivan Yu. Parnikoza, Igor O. Andreev, Olena M. Bublyk, Kateryna V. Spiridonova, more

Biologia > 2017 > 72 > 1 > 24-35

A comprehensive study of a typical steppe perennial Iris pumila L. were carried out in the central zone of the European part of this species’ range, namely in Ukraine. Intraspecific differentiation, population size and isolation degree and its consequences, the threat of human impact were analyzed, as well as ecological amplitude and genetic variation in ISSR markers and selected chloroplast regions...

article

Diversity of agricultural plants on Lesvos Island (Northeast Aegean, Greece) with emphasis on fruit trees

Caterina Douma, Kostas Koutis, Ricos Thanopoulos, Rallou Tsigou, more

Scientia Horticulturae > 2016 > 210 > C > 65-84

Historical evidence concerning the island of Lesvos has revealed the cultivation of cereals, olive trees, vines, figs and vegetables. Although the island's agricultural economy has been based almost exclusively on olive tree cultivation since the 18th century (ce.), wide diversity of other crops has significantly contributed to the growth of the local economy. Two consecutive inventories and collection...

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Search results

Small but connected islands can maintain populations and genetic diversity under climate change

Kelp breeding in China: Challenges and opportunities for solutions

The status and role of genetic diversity of trees for the conservation and management of riparian ecosystems: A European experts' perspective

Genetic diversity and disease: The past, present, and future of an old idea

Not out of the woods yet: Signatures of the prolonged negative genetic consequences of a population bottleneck in a rapidly re‐expanding wader, the black‐faced spoonbill Platalea minor

History, demography and genetic status of Balkan and Caucasian Lynx lynx (Linnaeus, 1758) populations revealed by genome‐wide variation

Meta‐analysis of genetic representativeness of plant populations under ex situ conservation in contrast to wild source populations

The impact of anthropogenic disturbances on the genetic diversity of terrestrial species: A global meta‐analysis

The abandonment of maize landraces over the last 50 years in Morelos, Mexico: a tracing study using a multi-level perspective

Paternity analysis reveals constraints on hybridization potential between native and introduced bluebells (Hyacinthoides)

Following Vavilov’s expeditions, Sardinia (Italy)

Sex ratio rather than population size affects genetic diversity in Antennaria dioica

Genetic relationships among Vietnamese local pigs investigated using genome‐wide SNP markers

Inbreeding in the exploited limpet Patella aspera across the Macaronesia archipelagos (NE Atlantic): Implications for conservation

‘Intentional Genetic Manipulation’ as a conservation threat

Analysis of the biodiversity of hawthorn (Crataegus spp.) from the morphological, molecular, and ethnobotanical approaches, and implications for genetic resource conservation in scenery of increasing cultivation: the case of Mexico

Population genetic structure and hybridization patterns in the cryptic sister species Chironomus riparius and Chironomus piger across differentially polluted freshwater systems

The role of genetic diversity and past-history selection pressures in the susceptibility of Chironomus riparius populations to environmental stress

The current state of steppe perennial plants populations: A case study on Iris pumila

Diversity of agricultural plants on Lesvos Island (Northeast Aegean, Greece) with emphasis on fruit trees

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