Results 141 to 150 of about 81,508 (349)

Genetic diversity, introgression and relationships among West/Central African cattle breeds

Genetics Selection Evolution, 2004
Genetic diversity, introgression and relationships were studied in 521 individuals from 9 African Bos indicus and 3 Bos taurus cattle breeds in Cameroon and Nigeria using genotype information on 28 markers (16 microsatellite, 7 milk protein and 5 blood ...
Erhardt Georg, Weimann Christina, Jann Oliver, Ibeagha-Awemu Eveline   +3 more
doaj   +1 more source

Evidence of natural hybridization and introgression between Medicago ciliaris and Medicago intertexta [PDF]

International Journal of Environmental & Agriculture Research 2 (2016) 129-135, 2016
The present study, investigated some reproductive and fertility parameters in some wild populations, originating from the North Tunisia (4 populations of Medicago ciliaris and 3 populations of Medicago intertexta). Previous finding revealed that these species are genetically distinct and easily recognized by the number of flowers per inflorescence and ...
arxiv  

Improving Whole Biodiversity Monitoring and Discovery With Environmental DNA Metagenomics

Molecular Ecology Resources, EarlyView.
ABSTRACT Environmental DNA (eDNA) metagenomics sequences all DNA molecules present in environmental samples and has the potential of identifying virtually any organism from which they are derived. However, due to unacceptable levels of false positives and negatives, this approach is underexplored as a tool for biodiversity monitoring across the tree of
Manuel Curto, Ana Veríssimo, Giulia Riccioni, Carlos D. Santos, Filipe Ribeiro, Sissel Jentoft, Maria Judite Alves, Hugo F. Gante   +7 more
wiley   +1 more source

The speciation of Australopithecus and Paranthropus was caused by introgression from the Gorilla lineage [PDF]

arXiv, 2018
The discovery of Paranthropus deyiremeda in 3.3-3.5 million year old fossil sites in Afar (Haile-Selassie, 2015), together with 30% of the gorilla genome showing lineage sorting between humans and chimpanzees (Scally, 2012), and a NUMT ("nuclear mitochondrial DNA segment") that is shared by both gorillas, humans and chimpanzees, and that dates back to ...
arxiv  

Leveraging Synteny to Generate Reference Genomes for Conservation: Assembling the Genomes of Hector's and Māui Dolphins

Molecular Ecology Resources, EarlyView.
ABSTRACT Escalating concern regarding the impacts of reduced genetic diversity on the conservation of endangered species has spurred efforts to obtain chromosome‐level genomes through consortia such as the Vertebrate Genomes Project. However, assembling reference genomes for many threatened species remains challenging due to difficulties obtaining ...
S. Alvarez‐Costes, C. S. Baker, R. Constantine, E. L. Carroll, J. Guhlin, L. Dutoit, S. Ferreira, D. Heimeier, N. J. Gemmell, J. Gillum, R. M. Hamner, W. Rayment, W. Roe, B. Te Aikā, L. Urban, A. Alexander   +15 more
wiley   +1 more source

LOCAL INTROGRESSION BETWEEN VIOLA CUCULLATA AIT. AND V. SEPTENTRIONALIS GREENE [PDF]

, 1955
Norman H. Russell
openalex   +1 more source

Optimization and Evaluation of the bestRAD Sequencing Approach: Towards Ascertainment of the Invasion Routes of the Oriental Fruit Fly, Bactrocera dorsalis

Molecular Ecology Resources, EarlyView.
ABSTRACT The bestRAD technique is a reduced genome representation approach with high‐capacity sample multiplexing and physical isolation of biotin‐labelled target DNA fragments using streptavidin beads, which should reduce total cost and genotyping errors. While we here formalise the relevance of this approach within the HTS landscape, our foremost aim
Emeline Charbonnel, Laure Benoit, Sabine Nidelet, Enrique Ortega‐Abboud, Bernhard Gschloessl, Raphaël Leblois, David Ouvrard, Marie‐Pierre Chapuis   +7 more
wiley   +1 more source

Ancient and modern hybridization between Lucilia sericata and L. cuprina (Diptera: Calliphoridae)

European Journal of Entomology, 2013
There are important but inconsistent differences in breeding site preference between the blow flies Lucilia sericata (Meigen, 1826) and L. cuprina (Wiedemann, 1830) (Diptera: Calliphoridae) that have significance for medical and veterinary science. These
Kirstin WILLIAMS, Martin H. VILLET
doaj   +1 more source

Has our brain grown too big to think effectively? [PDF]

arXiv, 2013
A variant of microcephalin, MCPH1 gene, was introgressed about 37,000 years ago into Homo sapiens genetic pool from an archaic (Homo erectus) lineage and rose to exceptionally high frequency of around 70 percent worldwide today. It is involved in regulating neuroblast proliferation and its changes alter the rate of division and/or differentiation of ...
arxiv  

Phylogenetic reconstruction and species delimitation in Stipeae with special reference to Stipa (Poaceae, Pooideae) using mitochondrial genomes

Cladistics, EarlyView.
Compared to plastid genomes, plant mitochondrial genomes have been less frequently used for species discrimination and phylogenetic studies due to assembly challenges, lower substitution rates and rapid structural evolution. However, this study demonstrates that mitochondrial genome fragments can be valuable for both molecular species identification ...
Katarzyna Krawczyk, Mateusz Maździarz, Łukasz Paukszto, Marcin Nobis, Jakub Sawicki   +4 more
wiley   +1 more source