Results 71 to 80 of about 10,555 (279)

Intra‐specific variability and sex influence allelopathic capacity of Empetrum nigrum

open access: yesNordic Journal of Botany, EarlyView.
Allelopathic plant species play significant roles in shaping natural ecosystems. While a high degree of inter‐species variation in allelopathic capacities is commonly reported, variation across intra‐specific groups and between dioecious sexes is limited.
Ingvild Ryde   +4 more
wiley   +1 more source

Relaxation of the leaf economics spectrum within and across quaking aspen Populus tremuloides genotypes

open access: yesOikos, EarlyView.
Plant functional traits typically show strong covariation, e.g. as in the worldwide leaf economics spectrum (LES). Covariation is thought to arise from selective forces and physical constraints. However, processes shaping covariation at interspecific scales may differ from those at intraspecific scales.
Jolanta Rieksta   +5 more
wiley   +1 more source

Genome size variation and polyploidy incidence in the alpine flora from Spain

open access: yesAnales del Jardín Botánico de Madrid, 2013
The interest to study genome evolution, in particular genome size variation and polyploid incidence, has increased in recent years. Still, only a few studies have been focused at a community level.
João Loureiro   +4 more
doaj   +1 more source

Friends or foes? Polyploidy and competition in a grassland geophyte

open access: yesOikos, EarlyView.
Previous studies have suggested polyploids may possess a competitive advantage over diploids, due to their larger size, increased vigour or ability to better respond to abiotic stress. However, few studies have tested the effect of polyploidy on competitive ability directly, and only relatively recently has this oversight begun to be addressed. Here we
Damian Vaz de Sousa   +3 more
wiley   +1 more source

Parental ploidy strongly affects offspring fitness in heteroploid crosses among three cytotypes of autopolyploid Jacobaea carniolica (Asteraceae).

open access: yesPLoS ONE, 2013
Reproductive interactions among cytotypes in their contact zones determine whether these cytotypes can co-exist and form stable contact zones or not. In autopolyploids, heteroploid cross-compatibilities might depend on parental ploidy, but tests of this ...
Michaela Sonnleitner   +9 more
doaj   +1 more source

Karyotype, ploidy, and gene dosage [PDF]

open access: yesWormBook, 2005
The normal karyotype of Caenorhabditis elegans, with its five pairs of autosomes and single pair of X chromosomes, is described. General features of chromosomes and global differences between different chromosomal regions are discussed. Abnormal karyotypes, including duplications, deficiencies, inversions, translocations and chromosome fusions are ...
openaire   +2 more sources

Essential Oil Profiles of Lippia turbinata (Verbenaceae) from Argentina: Insights from a Systematic Review and Meta‐Analysis

open access: yesChemistryOpen, EarlyView.
This study systematically reviews essential oil (EO) profiles of Lippia turbinata (Verbenaceae) populations from Argentina. A meta‐analysis reveals significant chemical variability and distinct chemotypes, primarily defined by limonene, carvone, β‐caryophyllene, and caryophyllene oxide.
Fernando Livio Corzo   +4 more
wiley   +1 more source

Enhanced sugar accumulation and regulated plant hormone signalling genes contribute to cold tolerance in hypoploid Saccharum spontaneum

open access: yesBMC Genomics, 2020
Background Wild sugarcane Saccharum spontaneum plants vary in ploidy, which complicates the utilization of its germplasm in sugarcane breeding. Investigations on cold tolerance in relation to different ploidies in S.
Hongli Yang   +6 more
doaj   +1 more source

Phylogenetic analysis of paired breast carcinomas identifies genetic events associated with clonal recurrence and invasive progression

open access: yesThe Journal of Pathology, EarlyView.
Abstract Development of ipsilateral breast carcinoma following a diagnosis of breast ductal carcinoma in situ (DCIS) has been assumed to represent recurrence of the primary tumour. However, this may not always be the case, and it is important to determine how often such recurrences represent new tumours.
Tanjina Kader   +32 more
wiley   +1 more source

Identification of actionable targets using DEPArray‐based sorting of pure carcinoma and stromal populations from formalin‐fixed paraffin‐embedded tissues followed by shallow whole‐genome sequencing

open access: yesThe Journal of Pathology, EarlyView.
Abstract Formalin‐fixed paraffin‐embedded (FFPE) tissue specimens represent precious resources for clinical genomic profiling studies, especially when coupled with comprehensive medical records. Even though next‐generation sequencing (NGS) is an effective tool to detect somatic mutations and somatic copy number alterations (sCNA), the biggest ...
Georgios Nteliopoulos   +20 more
wiley   +1 more source

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