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View article: In Vitro Initiation, Regeneration, and Characterization of Plants Derived from Mature Tetraploid Floral Explants of Date Palm (Phoenix dactylifera L.)
In Vitro Initiation, Regeneration, and Characterization of Plants Derived from Mature Tetraploid Floral Explants of Date Palm (Phoenix dactylifera L.) Open
A stable tetraploid date palm mutant with the potential for increased fruit size was recovered from a sectorial di-tetraploid chimera via the in vitro culture of flower explants. Callus was induced using 2,4-D, followed by shoot regenerati…
View article: CORRIGENDUM: Correction of the AffiliationsCorrigendum to: Optimized tetraploidization strategies in tissue culture for Lolium, Festuca, and Festulolium
CORRIGENDUM: Correction of the AffiliationsCorrigendum to: Optimized tetraploidization strategies in tissue culture for Lolium, Festuca, and Festulolium Open
Biologia plantarum, an international journal for experimental botany founded in 1959 by Professor Bohumil Němec. Covers all branches of experimental botany ranging from molecular biology and biotechnology to whole-plant and stand functioni…
View article: Optimized tetraploidization strategies in tissue culture for Lolium, Festuca, and Festulolium
Optimized tetraploidization strategies in tissue culture for Lolium, Festuca, and Festulolium Open
In plant breeding, polyploidization is an established technique to obtain superior phenotypic characteristics. In seed propagated agricultural crops, seed treatments with antimitotic agents are often used to obtain chromosome doubling. Her…
View article: The Promising Potential of Triploidy in Date Palm (Phoenix dactylifera L.) Breeding
The Promising Potential of Triploidy in Date Palm (Phoenix dactylifera L.) Breeding Open
Date palms are a vital part of oasis ecosystems and are an important source of income in arid and semi-arid areas. Crossbreeding is limited due to the long juvenile stage of date palms and their dioecious nature. The aim of this study was …
View article: Greenhouse Screening for pH Stress in Rhododendron Genotypes
Greenhouse Screening for pH Stress in Rhododendron Genotypes Open
The genus Rhododendron is known for its preference for acidic soils, although some genotypes can tolerate a more neutral or alkaline pH. In this study, a greenhouse experiment was set up for 140 days to examine different parameters to asse…
View article: A bio-assay to screen <i>Ilex crenata</i> for tolerance to high soil pH and black root rot resistance
A bio-assay to screen <i>Ilex crenata</i> for tolerance to high soil pH and black root rot resistance Open
sponsorship: VLAIO|HBC.2020.2847
View article: Exploring Genetic Diversity in an Ilex crenata Breeding Germplasm
Exploring Genetic Diversity in an Ilex crenata Breeding Germplasm Open
Knowledge of genetic identity, genetic relationships, ploidy level, and chromosome numbers can enhance the efficiency of ornamental plant breeding programs. In the present study, genome sizes, chromosome numbers, and genetic fingerprints w…
View article: Breeding and Selection of Nursery Plants Assisted by High-Throughput Field Phenotyping Using UAV Imagery: Case Studies with Sweet Box (Sarcococca) and Garden Rose (Rosa)
Breeding and Selection of Nursery Plants Assisted by High-Throughput Field Phenotyping Using UAV Imagery: Case Studies with Sweet Box (Sarcococca) and Garden Rose (Rosa) Open
Breeding and selection of nursery plants require evaluation of a wide variety of traits. Characteristics that are visually scored in the field include aesthetic beauty as well as tolerance to (a)biotic stresses, among others. This work pro…
View article: Jasmonic Acid and Salicylic Acid Levels in Defense Response of Azalea (Rhododendron simsii Hybrid) to Broad Mite (Polyphagotarsonemus latus)
Jasmonic Acid and Salicylic Acid Levels in Defense Response of Azalea (Rhododendron simsii Hybrid) to Broad Mite (Polyphagotarsonemus latus) Open
The broad mite (Polyphagotarsonemus latus (Banks)) is an important pest in many crops, including azalea (Rhododendron simsii Planch. hybrid). Broad mites cause the malformation of shoot tips, leaves and flowers in azalea. It is known that …
View article: Green infrastructure can promote plant functional connectivity in a grassland species around fragmented semi‐natural grasslands in NW‐Europe
Green infrastructure can promote plant functional connectivity in a grassland species around fragmented semi‐natural grasslands in NW‐Europe Open
Species may benefit from green infrastructure, i.e. the network of natural and anthropogenic habitat remnants in human‐dominated landscapes, if it helps isolated populations in remaining habitat patches to be functionally connected. The im…
View article: Germination Kinetics and Chlorophyll Fluorescence Imaging Allow for Early Detection of Alkalinity Stress in Rhododendron Species
Germination Kinetics and Chlorophyll Fluorescence Imaging Allow for Early Detection of Alkalinity Stress in Rhododendron Species Open
Rhododendron species are typical calcifuges that do not grow well in calcareous soils characterized by alkaline pH and high concentrations of Ca2+. In this study, we investigated the effects of three pH levels and a Ca2+ treatment on the i…
View article: Environmental and genetic data on 1926 Galium verum ramets sampled in 35 landscapes in NW-Europe
Environmental and genetic data on 1926 Galium verum ramets sampled in 35 landscapes in NW-Europe Open
This Figshare data-file contains three files which are linked via unique identifiers to reconstruct all the data needed to investigate the impact of green infrastructure on the functional connectivity in the grassland perennial Galium veru…
View article: Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental Lavandula Species
Determination of Genetic Distance, Genome Size and Chromosome Numbers to Support Breeding in Ornamental Lavandula Species Open
Knowledge of phylogenetic relatedness and cytogenetic characteristics can facilitate breeding programs and interspecific hybridization in ornamentals. In this study genetic relationships, genome sizes and chromosome numbers were determined…
View article: Dehydrins and Soluble Sugars Involved in Cold Acclimation of Rosa wichurana and Rose Cultivar ‘Yesterday’
Dehydrins and Soluble Sugars Involved in Cold Acclimation of Rosa wichurana and Rose Cultivar ‘Yesterday’ Open
Rose is the most economically important ornamental plant. However, cold stress seriously affects the survival and regrowth of garden roses in northern regions. Cold acclimation was studied using two genotypes (Rosa wichurana and R. hybrida…
View article: Unravelling hybridization in Phytophthora using phylogenomics and genome size estimation
Unravelling hybridization in Phytophthora using phylogenomics and genome size estimation Open
The genus Phytophthora comprises many economically and ecologically important plant pathogens. Hybrid species have previously been identified in at least six of the 12 phylogenetic clades. These hybrids can potentially infect a wider host …
View article: Hybridization of Oxalis corniculata and O. dillenii in their non-native range
Hybridization of Oxalis corniculata and O. dillenii in their non-native range Open
Many species have been introduced beyond their native ranges and many have become global weeds. Human mediated dispersal has removed the geographic isolation of these species, reversing millions of years of independent evolution. Examples …
View article: Can Knowledge of Genetic Distances, Genome Sizes and Chromosome Numbers Support Breeding Programs in Hardy Geraniums?
Can Knowledge of Genetic Distances, Genome Sizes and Chromosome Numbers Support Breeding Programs in Hardy Geraniums? Open
Breeding programs in ornamentals can be facilitated by integrating knowledge of phylogenetic relatedness of potential parents along with other genomic information. Using AFLP, genetic distances were determined for 59 Geranium genotypes, co…
View article: Somaclonal Variation in Chrysanthemum × morifolium Protoplast Regenerants
Somaclonal Variation in Chrysanthemum × morifolium Protoplast Regenerants Open
Chrysanthemum × morifolium protoplasts were isolated and regenerated to assess possible protoclonal variation in the regenerants. After a preliminary screening of the potential of different regeneration systems for protoplast regeneration,…
View article: A ploidy chimera reveals the effects of tetraploidy in date palm
A ploidy chimera reveals the effects of tetraploidy in date palm Open
In the oasis of Tozeur (Tunisia) a peculiar date palm ploidy chimera was discovered, showing a diploid (2n = 2x) and a tetraploid (2n =4x) sector and a uniform tetraploid offshoot. This chimera allowed to describe the effects of chromosome…
View article: Artificial Chromosome Doubling in Allotetraploid Calendula officinalis
Artificial Chromosome Doubling in Allotetraploid Calendula officinalis Open
Calendula officinalis L. is known as an ornamental plant as well as a source of biochemical compounds used in cosmetics and industry. C. officinalis has a complex karyotype. Published chromosome numbers differ between 2n = 4x = 28 or 32. W…
View article: Cold Acclimation and Deacclimation of Two Garden Rose Cultivars Under Controlled Daylength and Temperature
Cold Acclimation and Deacclimation of Two Garden Rose Cultivars Under Controlled Daylength and Temperature Open
Low temperature stress is an important abiotic stress for garden roses in northern regions. Two garden rose cultivars ('Dagmar Hastrup' and 'Chandos Beauty') were selected to study the role of dehydrin and of carbohydrate metabolism during…
View article: In the name of the rose: a roadmap for rose research in the genome era
In the name of the rose: a roadmap for rose research in the genome era Open
The recent completion of the rose genome sequence is not the end of a process, but rather a starting point that opens up a whole set of new and exciting activities. Next to a high-quality genome sequence other genomic tools have also becom…
View article: Prediction of Lime Tolerance in Rhododendron Based on Herbarium Specimen and Geochemical Data
Prediction of Lime Tolerance in Rhododendron Based on Herbarium Specimen and Geochemical Data Open
Rhododendrons are typically known to be calcifuges that cannot grow well in lime soils. Data on lime tolerance of different taxa in Rhododendron are scarce. Habitats of naturally distributed specimens of genus Rhododendron were compiled as…
View article: The Variable Effect of Polyploidization on the Phenotype in Escallonia
The Variable Effect of Polyploidization on the Phenotype in Escallonia Open
To induce new variation within the Escallonia genus, chromosome doubling was performed in E. rubra, E. rosea, and E. illinita, three important species within this genus of mainly evergreen woody ornamental species. Obtained tetraploids and…
View article: A high-quality sequence of<i>Rosa chinensis</i>to elucidate genome structure and ornamental traits
A high-quality sequence of<i>Rosa chinensis</i>to elucidate genome structure and ornamental traits Open
Rose is the world’s most important ornamental plant with economic, cultural and symbolic value. Roses are cultivated worldwide and sold as garden roses, cut flowers and potted plants. Rose has a complex genome with high heterozygosity and …
View article: Effect of polyploidization on morphology in two apple (Malus × domestica) genotypes
Effect of polyploidization on morphology in two apple (Malus × domestica) genotypes Open
Because polyploidy often results in enhancement of desirable properties, artificial genome doubling is commonly used in agri- and horticultural crop breeding programs. In this study genome doubling was induced in two apple genotypes. The e…