Results 41 to 50 of about 489 (158)

Genetic distance and its association with heterosis in cacao

open access: yesBrazilian Archives of Biology and Technology, 2003
The efficiency of cacao breeding program can be increased by choosing superior crosses to be made between divergent clones. We assessed the genetic distance among five clones with RAPD data (genetic distance - GD) and with yield component data ...
Luiz Antônio dos Santos Dias   +4 more
doaj   +1 more source

Estudios evolutivos y biomédicos en dos poblaciones indígenas Guaymies de Costa Rica [PDF]

open access: yes, 1981
artículo (arbitrado) -- Universidad de Costa Rica, Instituto de Investigaciones en Salud. 1981A biomedical study which included genetic, demographic, nutritional and health aspects was carried out in two amerindian Guayrni populations, Abrojo and ...
Barrantes Mesén, Ramiro   +1 more
core  

Microsatélites, distancias genéticas y estructura de poblaciones nativas sudamericanas

open access: yesRevista Argentina de Antropología Biológica, 2009
En este trabajo se investigaron las relaciones genéticas entre 17 poblaciones nativas sudamericanas en relación a 15 microsatélites (STRs) autosómicos, utilizando 3 distancias genéticas- DST, DAy (δu)2-que se ajustan a diferentes postulados teóricos.
Demarchi, Darío Alfredo
doaj  

Diversidade genética intra e interespecífica de pitaya com base nas características físico-químicas de frutos

open access: yesRevista Brasileira de Fruticultura, 2013
Neste trabalho, objetivou-se avaliar a diversidade genética intra e interespecífica de 21 acessos de duas espécies de pitaya, Hylocereus undatus (Haw) Britton & Rose e Selenicereus setaceus Salm-Dyck. A.
Cristiane Andréa de Lima   +2 more
doaj   +1 more source

Caracterización isoenzimatica de aislados de Rhizobium spp. de nódulos de arveja (Pisum sativum) cultivada en suelos del departamento de Nariño [PDF]

open access: yes, 2016
Se caracterizaron 33 aislados de Rhizobium spp.de nodulos de plantas de arveja (pisum sativum) culti-vadas en diferentes suelos del departamento de Nariño, mediante la técnica de Electroforesis de Iso-enzimas Multilocus (MLEE).
Belalcazar, Elkin   +2 more
core  

Hierarchical structure of genetic distances: Effects of matrix size, spatial distribution and correlation structure among gene frequencies

open access: yesGenetics and Molecular Biology, 1998
Geographic structure of genetic distances among local populations within species, based on allozyme data, has usually been evaluated by estimating genetic distances clustered with hierarchical algorithms, such as the unweighted pair-group method by ...
Flávia Melo Rodrigues   +1 more
doaj   +1 more source

Report CR-A-219-B - Cabo Verde Estudo do Sector Agrícola [PDF]

open access: yes, 1978
A. A Singularidade de Cabo Verde Cabo Verde e unica entre a familia de na90es. ~ uma republica de ilhas (Fig. 1.1) suficientemente distanciadas umas das outras e do continente africano (600 km) para dissuadir visitas imprevistas ou fortuitas.
Freeman, Peter H   +4 more
core  

Distancias genéticas en poblaciones del NOA

open access: yesRevista Argentina de Antropología Biológica, 1996
La mayor parte de los trabajos realizados en nuestro país sobre polimorfismos hematológicos, abordan la necesaria descripción de las poblaciones. Se pone de relieve la importancia de encarar estudios, en base a la valiosa información publicada, que ...
Acreche, Noemí   +2 more
doaj  

El género Profundulus Hubbs, 1924 (Actinopterygii: Profundulidae): sistemática, filogenia y biogeografía [PDF]

open access: yes, 2004
Tesis Doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Ecología.
Morcillo Alonso, Felipe
core   +1 more source

The Andes as a semi‐permeable geographical barrier: Genetic connectivity between structured populations in a widespread spider

open access: yesMolecular Ecology, Volume 33, Issue 11, June 2024.
Abstract Geographical barriers like mountain ranges impede genetic exchange among populations, promoting diversification. The effectiveness of these barriers in limiting gene flow varies between lineages due to each species' dispersal modes and capacities. Our understanding of how the Andes orogeny contributes to species diversification comes from well‐
Fabian C. Salgado‐Roa   +5 more
wiley   +1 more source

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