Results 1 to 10 of about 2,446,201 (282)

Genetic Erosion Detected in a Specialist Mammal Living in a Fast-Developing Environment

Conservation Science and Practice, 2022
Fragmentation of habitat is a major threat across a wide range of taxa. Subsequent effects include reduced population sizes and isolation of populations. Both can have detrimental consequences for populations as they increase the risk of genetic erosion.
Romane H Cristescu, Céline Frére, Katrin Hohwieler   +2 more
exaly   +2 more sources

Spatial differences in genetic diversity and northward migration suggest genetic erosion along the boreal caribou southern range limit and continued range retraction [PDF]

Ecology and Evolution, 2019
With increasing human activities and associated landscape changes, distributions of terrestrial mammals become fragmented. These changes in distribution are often associated with reduced population sizes and loss of genetic connectivity and diversity (i ...
Laura M. Thompson, Cornelya F. C. Klütsch, Micheline Manseau, Paul J. Wilson   +3 more
doaj   +2 more sources

Assessment of the Population Status of Allium Oschaninii O. Fedtsch. In the Mountains of Uzbekistan

Ekológia (Bratislava), 2022
Currently, the genetic resources of plants are on the verge of gradual disappearance, called genetic erosion. The erosion of genetic diversity implies the loss of diverse genes in individual plant species.
Saribaeva Shakhnoza, Abduraimov Ozodbek, Allamuratov Akmal   +2 more
doaj   +1 more source

On-farm conservation of cassava in Cuiabá, Mato Grosso state, Brazil: ethnobotanical aspects and genetic diversity

Pesquisa Agropecuária Tropical, 2023
Family farmers are important in the on-farm conservation of cassava, since they maintain distinct ethnovarieties in their plantations. This research aimed to analyze ethnobotanical aspects and the genetic diversity of cassava ethnovarieties
Melca Juliana Peixoto Rondon, Auana Vicente Tiago, Eulalia Soler Sobreira Hoogerheide   +2 more
doaj   +1 more source

Conservation and Use of Latin American Maize Diversity: Pillar of Nutrition Security and Cultural Heritage of Humanity

Agronomy, 2021
Latin America is the center of domestication and diversity of maize, the second most cultivated crop worldwide. In this region, maize landraces are fundamental for food security, livelihoods, and culture.
Filippo Guzzon, Luis Walquer Arandia Rios, Galo Mario Caviedes Cepeda, Marcia Céspedes Polo, Alexander Chavez Cabrera, Jesús Muriel Figueroa, Alicia Elizabeth Medina Hoyos, Teófilo Wladimir Jara Calvo, Terence L. Molnar, Luis Alberto Narro León, Teodoro Patricio Narro León, Sergio Luis Mejía Kerguelén, José Gabriel Ospina Rojas, Gricelda Vázquez, Ricardo Ernesto Preciado-Ortiz, José Luis Zambrano, Natalia Palacios Rojas, Kevin V. Pixley   +17 more
doaj   +1 more source

Diversidade genética da soja entre períodos e entre programas de melhoramento no Brasil Soybean genetic diversity in time and among breeding programs in Brazil

Pesquisa Agropecuária Brasileira, 2004
O objetivo deste trabalho foi detectar os efeitos do melhoramento sobre a diversidade do germoplasma da soja cultivada nas três ultimas décadas, por meio da comparação de seis programas de melhoramento e períodos de lançamento de cultivares, utilizando ...
Regina Helena Geribello Priolli, Celso Teixeira Mendes-Junior, Sandra Mara Bispo Sousa, Neylson Eustáquio Arantes Sousa, Eucleia Primo Betioli Contel   +4 more
doaj   +1 more source

Venetian Local Corn (Zea mays L.) Germplasm: Disclosing the Genetic Anatomy of Old Landraces Suited for Typical Cornmeal Mush Production

Diversity, 2017
Due to growing concern for the genetic erosion of local varieties, four of the main corn landraces historically grown in Veneto (Italy)—Sponcio, Marano, Biancoperla and Rosso Piave—were characterized in this work.
Fabio Palumbo, Giulio Galla, Liliam Martínez-Bello, Gianni Barcaccia   +3 more
doaj   +1 more source

Challenges in quantifying genome erosion for conservation

Frontiers in Genetics, 2022
Massive defaunation and high extinction rates have become characteristic of the Anthropocene. Genetic effects of population decline can lead populations into an extinction vortex, where declining populations show lower genetic fitness, in turn leading to
Mirte Bosse, Mirte Bosse, Sam van Loon
doaj   +1 more source

Participatory Plant Breeding and the Evolution of Landraces: A Case Study in the Organic Farms of the Collserola Natural Park

Agronomy, 2019
Although consumers appreciate the genetic diversity among tomato landraces, traditional varieties have been displaced from commercial agriculture. Their cultivation through organic farming in natural parks can contribute to their resurgence.
Joan Casals, Aurora Rull, Joel Segarra, Philipp Schober, Joan Simó   +4 more
doaj   +1 more source

First morphological characterization of autochthonous olive (Olea europaea L.) denominations from central and eastern of Algeria

Acta Agriculturae Slovenica, 2020
Olive (Olea europaea L.) resources in Algeria are very little investigated. In fact, a total of 60 denominations have been the subject of characterization studies and they are cited in the bibliography but only 36 varieties are described and listed in ...
Rachid BOUKHARI, Abdelkader AMEUR AMEUR, Hocine INNAL, Semir Bechir Suheil GAOUAR   +3 more
doaj   +1 more source