Results 21 to 30 of about 5,399,182 (405)

Global determinants of freshwater and marine fish genetic diversity

open access: yesNature Communications, 2020
Genetic diversity is estimated to be declining faster than species diversity under escalating threats, but its spatial distribution remains poorly documented at the global scale.
S. Manel   +6 more
semanticscholar   +1 more source

Maize Germplasm Conservation in Southern California's Urban Gardens: Introduced Diversity Beyond ex situ and in situ Management. [PDF]

open access: yes, 2016
Contemporary germplasm conservation studies largely focus on ex situ and in situ management of diversity within centers of genetic diversity. Transnational migrants who transport and introduce landraces to new locations may catalyze a third type of ...
Ellstrand, Norman C, Heraty, Joanne M
core   +1 more source

Detection of Plant Viruses and Disease Management: Relevance of Genetic Diversity and Evolution

open access: yesFrontiers in Plant Science, 2020
Plant viruses cause considerable economic losses and are a threat for sustainable agriculture. The frequent emergence of new viral diseases is mainly due to international trade, climate change, and the ability of viruses for rapid evolution.
L. Rubio, L. Galipienso, I. Ferriol
semanticscholar   +1 more source

Environmental factors influence both abundance and genetic diversity in a widespread bird species. [PDF]

open access: yes, 2013
Genetic diversity is one of the key evolutionary variables that correlate with population size, being of critical importance for population viability and the persistence of species. Genetic diversity can also have important ecological consequences within
Boettcher R.   +8 more
core   +3 more sources

Comparative genome analyses suggest a hemibiotrophic lifestyle and virulence differences for the beech bark disease fungal pathogens Neonectria faginata and Neonectria coccinea

open access: yesG3: Genes, Genomes, Genetics, 2021
Neonectria faginataNeonectria coccineaN. faginataN. coccineaN. coccineaN. faginataN. coccineaN. faginataN. coccineaN. faginataN. coccineaN. faginataN.
Catalina Salgado-Salazar   +3 more
doaj   +1 more source

Mapping the northernmost transnational non-native population of Xenopus laevis using pooled eDNA sampling [PDF]

open access: yesNeoBiota
Early-detection-rapid response (EDRR) programs are invaluable for managing incipient invasions, but require monitoring strategies that maximize search coverage and minimize costs.
Teun Everts   +6 more
doaj   +3 more sources

Post-2020 goals overlook genetic diversity

open access: yesScience, 2020
M.H. receives funding from an “Investissement d’Avenir” grant managed by Agence Nationale de la Recherche [Centre d’etude de la biodiversite amazonienne (CEBA), ref. ANR-10-LABX-25-01].
L. Laikre   +19 more
semanticscholar   +1 more source

Taxonomy and Identification of Principal Foliar Nematode Species (Aphelenchoides and Litylenchus)

open access: yesPlants, 2020
Nematodes are Earth’s most numerous multicellular animals and include species that feed on bacteria, fungi, plants, insects, and animals. Foliar nematodes are mostly pathogens of ornamental crops in greenhouses, nurseries, forest trees, and field crops ...
Zafar Handoo, Mihail Kantor, Lynn Carta
doaj   +1 more source

Pharmacognostic standardization of Aralia cachemirica: a comparative study

open access: yesFuture Journal of Pharmaceutical Sciences, 2021
Background Aralia cachemirica Decne. is an endemic and an important medicinal plant species of Kashmir Himalaya. Despite having immense medicinal importance, little information is available on the standardization parameters of the species.
Neelofar Majid   +4 more
doaj   +1 more source

Inverse relationship between genetic diversity and epigenetic complexity [PDF]

open access: yes, 2008
Early studies of molecular evolution revealed a correlation between genetic distance and time of species divergence. This observation provoked the molecular clock hypothesis and in turn the ‘Neutral Theory’, which however remains an ...
Shi Huang
core   +3 more sources

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