Results 41 to 50 of about 1,393 (187)

Morphological and genetic differentiation among Chilean populations of Bufo spinulosus (Anura: Bufonidae) Diferenciación morfológica y genética entre poblaciones chilenas de Bufo spinulosus (Anura: Bufonidae)

open access: yesRevista Chilena de Historia Natural, 2004
Bufo spinulosus has a wide and fragmented range distribution in Chile (18° to 33° S) along altitudinal and latitudinal gradients. Genetic variation was estimated using RAPD (Random Amplified Polymorphic DNA) markers in 10 populations from ...
Marco A. Méndez   +6 more
doaj  

DNA analyses and their applications in plant breeding

open access: yesCzech Journal of Genetics and Plant Breeding, 2002
In recent years, molecular markers have been developed based on the more detailed knowledge of genome structure. Considerable emphasis has been laid on the use of molecular markers in practical breeding and genotype identification.
J. Ovesná, K. Poláková, L. Leišová
doaj   +1 more source

A public mid‐density genotyping platform for pecan [Carya illinoinensis (Wangenh.) K. Koch]

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Pecan [Carya illinoinensis (Wangenh.) K. Koch] is the fifth‐largest tree nut in global cultivation, with 80% of production occurring in the southern states of the United States. Despite the economic and health benefits of pecans, there is a lack of genomic tools available to breeders for crop improvement. The pecan breeding community is small,
Shufen Chen   +11 more
wiley   +1 more source

Genetic Estimates of Relatedness: Established Practices and New Opportunities Through Low Coverage Whole‐Genome Sequencing

open access: yesMolecular Ecology, Volume 35, Issue 11, June 2026.
ABSTRACT Identifying close relatives in wild animal populations is fundamental across many research fields. Genetic estimates of relatedness have expanded rapidly in recent decades, drawing on a range of genetic data types. Here, we review their use and outline opportunities for future studies by combining two complementary approaches.
Annika Freudiger   +7 more
wiley   +1 more source

Variabilidad y diferenciación genética en cuatro poblaciones de la planta medicinal Psychotria acuminata en Costa Rica

open access: yesAgronomía Costarricense, 2003
Un total de 51 accesiones de Psychotria acuminata, provenientes de 4 poblaciones en Costa Rica, fueron evaluadas con los marcadores moleculares RAPD (Random Amplified Polymorphic DNA) e ISSR (Inter-Simple Sequence Repeat DNA).
Alfonso Lara   +3 more
doaj  

Diversidad genética de accesiones de la familia Caricaceae en el sur de Ecuador

open access: yesMaskana, 2017
Se estudió la diversidad genética de 78 accesiones de la familia Caricaceae recolectadas en las provincias de Azuay, Cañar, Loja, Zamora Chinchipe y El Oro, al sur de Ecuador, de las especies Vasconcellea candicans, V. goudotiana, V.
Denisse F. Peña T.   +3 more
doaj   +1 more source

Comprehensive and Comparative Transcriptional Profiling of the Cell Wall Stress Response in Bacillus subtilis

open access: yesMolecular Microbiology, Volume 125, Issue 6, Page 506-545, June 2026.
Transcriptional profiling of the primary cell envelope stress response (CESR) of Bacillus subtilis exposed to a range of cell wall‐targeting antimicrobials, combining RNAseq and high‐resolution tiling arrays. We revealed the complexity of the CESR, the contribution of extracytoplasmic function sigma factors (ECFs) and two‐component signal transduction ...
Qian Zhang   +12 more
wiley   +1 more source

Estructura y diversidad genética de poblaciones naturales de Cedrelinga Cateniformis ‟tornillo” en la región oriental del Perú

open access: yesScientia Agropecuaria, 2020
Tornillo es una especie forestal de amplia distribución en la Amazonia del Perú, su explotación irracional ha generado perdidas en su diversidad. En la actualidad, no se tiene una línea base para el desarrollo de estrategias de conservación debido a un ...
Wilbert Cruz   +5 more
doaj   +1 more source

Assessment of the feed additive consisting of Lactiplantibacillus plantarum NCIMB 30238 and Pediococcus pentosaceus NCIMB 30237 (1k21008) for all animal species for the renewal of its authorisation (Volac International Ltd)

open access: yesEFSA Journal, Volume 24, Issue 6, June 2026.
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the assessment of the application for renewal of authorisation of a preparation of Lactiplantibacillus plantarum NCIMB 30238 and Pediococcus pentosaceus NCIMB 30237 (1k21008) as a technological additive to improve ensiling of fresh material for ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)   +21 more
wiley   +1 more source

Caracterización molecular y germinación de semillas de maíces criollos azules con envejecimiento acelerado.

open access: yesAgronomía Mesoamericana, 2011
El objetivo del presente estudio fue determinar el efecto del envejecimie nto acelerado en semillas de varie dades criollas de maíz azul. En los laboratorios de la Universidad Nacional Autónoma de México y del Instituto Politécnico Nacional, semillas
Dagoberto Durán-Hernández   +4 more
doaj   +1 more source

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