Results 11 to 20 of about 83,532 (156)

Red squirrels from south–east Iberia: low genetic diversity at the southernmost species distribution limit [PDF]

Animal Biodiversity and Conservation, 2015
Ardillas rojas del sureste ibérico: baja diversidad genética en el límite austral de la distribución de la especie El sureste ibérico es el límite más austral de la distribución de esta especie en Europa, donde las ardillas habitan principalmente en ...
J. M. Lucas, P. Prieto, J. Galián
doaj   +7 more sources

The frequency and importance of polyploidy in tropical rainforest tree radiations. [PDF]

New Phytol
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Schley RJ, Piñeiro R, Nicholls JA, Gaynor ML, Lewis GP, Fonseca Pezzini F, Dexter KG, Kidner C, Pennington RT, Twyford AD.   +9 more
europepmc   +2 more sources

Mutational load and adaptive variation are shaped by climate and species range dynamics in Vitis arizonica. [PDF]

New Phytol
Summary Genetic load can reduce fitness and hinder adaptation. While its genetic underpinnings are well established, the influence of environmental variation on genetic load is less well characterized, as is the relationship between genetic load and putatively adaptive genetic variation.
Fiscus CJ, Aguirre-Liguori JA, Gaut GRJ, Gaut BS.   +3 more
europepmc   +2 more sources

A Dominant Founder Lineage Has Possible Fitness Costs for the Endangered Mexican Grey Wolf. [PDF]

Mol Ecol
ABSTRACT The Mexican grey wolf (Canis lupus baileyi) is an endangered and genetically distinct subspecies of grey wolf adapted to the warm climates of the southwestern United States and Mexico. Following centuries of eradication efforts, Mexican grey wolves were protected under the Endangered Species Act in 1976, prompting an international ex situ ...
Loera Y, Khakoo M, Krueckeberg E, Nilsson IG, Wu Z, Dwire M, Adams J, Waits L, Oakleaf JK, Campbell ML, Dunnum JL, Cook JA, vonHoldt BM.   +12 more
europepmc   +2 more sources

Variation in responses to temperature in admixed Populus genotypes predicts geographic shifts in regions where hybrids are favored. [PDF]

New Phytol
Summary Plastic responses of plants to their environment vary as a result of genetic differentiation within and among species. To accurately predict rangewide responses to climate change, it is necessary to characterize genotype‐specific reaction norms across the continuum of historic and future climate conditions comprising a species' range. The North
Mead A, Beasley-Bennett JR, Bleich A, Fischer D, Flint S, Golightly J, Kalcsits L, Klopf SK, Kulbaba MW, Lasky JR, LeBoldus JM, Lowry DB, Mitchell N, Moran E, Sexton JP, Søndreli KL, Worthing B, Zavala-Paez M, Fitzpatrick MC, Holliday J, Keller S, Hamilton JA.   +21 more
europepmc   +2 more sources

Anthropogenic or Natural Dispersal: Case of the Spiny-Tailed Iguanas (<i>Ctenosaura</i>) on Clarion Island, Mexico. [PDF]

Ecol Evol
Species can colonize oceanic islands by both natural and human‐assisted dispersal and human‐caused species introductions have had catastrophic effects on ecosystems around the world. The Spiny‐tailed Iguanas inhabiting Clarion Island were previously considered introduced. Molecular data and analyses support iguanas' arrival on Clarion Island by natural
Mulcahy DG, Reyes-Velasco J, Vázquez-Arce DI, Cervantes-Pasqualli JA, Martínez-Gómez JE, de Queiroz K.   +5 more
europepmc   +2 more sources

Is there any genetic variation among native mexican and argentinian populations of Dalbulus maidis (Hemiptera: Cicadellidae)?. [PDF]

, 2012
The corn leafhopper Dalbulus maidis (Delong & Wolcott) (Hemiptera: Cicadellidae) originated in Mexico, but is found from southeastern and southwestern USA to Argentina.
Bertin, Sabrina, Bosco, Domenico, Moya-Raygoza, Gustavo, Palomera, Veronica, Rodriguez, Aaron, Virla, Eduardo Gabriel   +5 more
core   +2 more sources

Características funcionales que influyen en la respuesta a la sequía de las especies del género Quercus: variación inter- e intra-específica [PDF]

, 2014
El género Quercus sp. tiene una amplia distribución geográfica a lo largo de todo el Hemisferio Norte, y está presente desde zonas templado-frías de Europa o Norte-América, hasta zonas tropicales de América del Sur.
Aranda, Ismael, Ramírez-Valiente, Jose Alberto, Rodriguez Calcerrada, Jesus   +2 more
core   +3 more sources

El uso de los RAPDs como marcadores moleculares en plantas

Botan‪ical Sciences, 1997
Se presenta una revisión de los marcadores moleculares denominados RAPDs (pronunciado "rapids"; de su nombre en inglés: Random Amplified Polymorphic DNA; su traducción al español: Polimorfismos de ADN Amplificados al Azar).
Adriana Otero-Arnaiz, Marlene de la Cruz, Ken Oyama   +2 more
doaj   +1 more source

Tecoma stans: variación asociada con la inhibición de la α-glucosidasa para el tratamiento de la diabetes

Revista Biológico Agropecuaria Tuxpan, 2018
Tecoma stans es una planta utilizada en México y América Central para el tratamiento tradicional de la diabetes con un éxito variable dependiendo del origen, el entorno y otras fuentes de variación subyacentes. Para determinar la variación morfológica y
Antonio Álvarez Delgadillo , Miguel Ángel Villavicencio Nieto , Blanca Estela Pérez Escandón , Pablo Octavio Aguilar   +3 more
doaj   +1 more source