Results 41 to 50 of about 2,753 (184)

Inheritance and linkage of allozymes in Juniperus phoenicea L. (Cupressaceae)

open access: yesActa Societatis Botanicorum Poloniae, 2014
Eight enzyme systems coding for 14 loci were assayed in Juniperus phoenicea. Mendelian inheritance was confirmed for allozymes at 10 loci (Fle 2, Gdh, Got 1, Idh, Mdh 1, Mdh 2, Men 1, Pgi, Pgm I, Pgm 2) by testing the fit of band-pattern segregation in ...
Andrzej Lewandowski   +3 more
doaj   +1 more source

Transcriptomic stress responses in Vaccinium spp. F1 hybrids: Implications for temperature‐resilient cranberry breeding using a crop wild relative

open access: yesPLANTS, PEOPLE, PLANET, Volume 8, Issue 5, Page 1715-1732, September 2026.
Climate extremes threaten the sustainability of cranberry production, a culturally and economically important North American crop. This study demonstrates that wild cranberries (Vaccinium oxycoccos) harbor genetic variation that may enhance cold stress resilience when introduced into cultivated cranberry through hybridization.
Audrey Dickinson   +5 more
wiley   +1 more source

Quaternary Climate Oscillations Shape Genetic Diversity and Spatial Structure of Viola hybanthoides (Violaceae) Endemic to Danxia Landscape

open access: yesEcology and Evolution, Volume 16, Issue 8, August 2026.
We adopted ddRAD‐seq and chloroplast genome sequencing to explore the genetic characteristics of the danxia‐endemic species Viola hybanthoides. This species exhibits extremely low within‐population genetic diversity and obvious genetic differentiation, which is mainly driven by habitat fragmentation, restricted gene flow and Quaternary climatic changes.
Sufang Chen   +6 more
wiley   +1 more source

Ecotypic and allozyme variation of Capsella bursa-pastoris and C. rubella (Brassicaceae) along latitude and altitude gradients on the Iberian Peninsula

open access: yesAnales del Jardín Botánico de Madrid, 1999
Life-history traits (onset of flowering, leaf number, rosette diameter, plant height, branching number, fruit dimensions, seed number) of Capsella species from the Iberian Península associated with colotúzing ability were compared in a random block field
Barbara Neuffer, Raimund Hoffrogge
doaj   +1 more source

Range‐Wide Genetic Population Structure and Environmental Adaptation in the Eastern Oyster (Crassostrea virginica) Provides Insight for Aquaculture

open access: yesMolecular Ecology, Volume 35, Issue 15, August 2026.
ABSTRACT Selective breeding in aquaculture is necessary to establish food security and meet demand for sustainably produced protein. An informed selective breeding program requires understanding how population structure, environmental adaptation, and human activities shape natural genetic variation in wild conspecifics.
Madeline G. Eppley   +6 more
wiley   +1 more source

Effects of Habitat Fragmentation on Genetic Diversity in Cycas Balansae (Cycadaceae)

open access: yesASEAN Journal on Science and Technology for Development, 2017
Habitat fragmentation is a serious threat to species survival. In Vietnam, Cycas balansae has been considered as threatened species because of the reduction and fragmentation of its habitats and over-exploitation.
Nguyen Minh Tam   +3 more
doaj   +1 more source

Ibero‐Balearic plant disjunctions: genomic support for rapid and recurrent long‐distance colonizations of the endangered Diplotaxis ibicensis (Brassicaceae) despite no dispersal syndromes

open access: yesPlant Biology, Volume 28, Issue 5, Page 1560-1572, August 2026.
Genotyping‐by‐sequencing data reveal six well‐defined clades in the endangered Diplotaxis ibicensis, endemic to the western Mediterranean Basin and indicate rapid and recurrent long‐distance colonisations across the Balearic Islands and the eastern Iberian coast despite the absence of dispersal syndromes.
L. Bezares   +6 more
wiley   +1 more source

Comparative Analysis of Genomic Differentiation and Outcomes of Contact Between Taxa Within a Species Complex of North Temperate Fishes

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
We use comparative genomic comparisons between species and subspecies in a north temperate fish to examine the relationship between inferred divergence time and extent of reproductive isolation. We found that similar divergence times were associated with dramatically distinct levels of reproductive isolation.
E. B. Taylor, A. Geraldes
wiley   +1 more source

Cytogenetic Analysis of Altitude‐Associated Chromosome Variations in Campeiostachys nutans From Western Sichuan Plateau Using Multicolor GISH and ND‐FISH Approaches

open access: yesEcology and Evolution, Volume 16, Issue 7, July 2026.
The genomic and chromosomal organization of C. nutans was investigated using GISH and ND‐FISH with four oligonucleotide probes. The results showed that repetitive sequence distribution exhibited genome‐specific patterns: the H genome demonstrated high structural stability with low polymorphism, while the St genome showed moderate variation, and the Y ...
Cairong Yang   +7 more
wiley   +1 more source

Genetic variability in Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Upper Paraná River basin, Brazil

open access: yesGenetics and Molecular Biology, 2005
Allozyme data was used to assess the genetic diversity Astyanax altiparanae populations from the floodplain of the Upper Paraná River (PR). Specimens were collected in the southern Brazilian state of Paraná from PR in Porto Rico municipality and Ribeirão
Maria Dolores Peres   +2 more
doaj   +1 more source

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