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Consequences of whole genome duplication for 2n pollen performance
The vegetative cell of the angiosperm male gametophyte (pollen) functions as a free-living, single-celled organism that both produces and transports...
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The morphological diversity of pollen in the genus Gossypium
BackgroundPlant pollen has diverse morphological characteristics that can be consistently passed down from generation to generation. Information on...
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Cytological and transcriptomic analyses provide insights into the pollen fertility of synthetic allodiploid Brassica juncea hybrids
Key messageImbalanced chromosomes and cell cycle arrest, along with down-regulated genes in DNA damage repair and sperm cell differentiation, caused...
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Identification of two mutant JASON-RELATED genes associated with unreduced pollen production in potato
Key messageMultiple QTLs control unreduced pollen production in potato. Two major-effect QTLs co-locate with mutant alleles of genes with homology to...
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Pollen dispersal and mating patterns determine resilience for a large-yet-fragmented population of Cariniana estrellensis
Forest fragmentation studies are now urgent due to increased rates of deforestation and forest fires worldwide. In South America, the bee-pollinated Ca...
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Haploid induction and plant production in bottle gourd by pollination with gamma irradiated pollen
Bottle gourd [ Lagenaria siceraria (Molina) Standley] has been used exclusively as rootstocks for Cucurbit crops. Haploid technique increases the...
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CRISPR/Cas9 gene editing in peanut by Agrobacterium tumefaciens-mediated pollen tube transformation
Peanut ( Arachis hypogaea L.) is an important global food crop, providing a valuable source of protein, oil and nutrition. The functional analysis of...
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Generation and identification of a wheat–Agropyron cristatum (L.) Gaertn. 3P chromosome addition line and substitution line
Agropyron cristatum (L.) Gaertn. (2n = 4x = 28, PPPP), which is a wild relative of common wheat and has a P genome, has many excellent...
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Comparisons among populations and individuals to evaluate pollen–pistil interaction as a mechanism of reproductive interference in Taraxacum
Reproductive interference (RI), an interspecific mating interaction that reduces the fitness of at least one of the species involved, can lead to...
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The strong competitive role of 2n pollen in several polyploidy hybridizations in Rosa hybrida
Background2n pollen play a strong competitive role in hybridization and breeding of multiploids in Rosa hybrida . The ploidy inheritable...
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The Pattern of Natural Variability of Palynomorphological Features by the Example of Some Nierembergia and Bouchetia Species (Solanaceae) and Natural System of Biovariety
AbstractBy the example of morphological features of pollen of eight species of Nierembergia and two species of Bouchetia (Solanaceae family), the...
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Genome composition in Brassica interspecific hybrids affects chromosome inheritance and viability of progeny
Interspecific hybridization is widespread in nature and can result in the formation of new hybrid species as well as the transfer of traits between...
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Breakdown of self-incompatibility of apple (Malus × domestica Borkh.) induced by gamma-ray mutagenesis
Self-compatibility (SC) in a naturally self-incompatible fruit tree species is an incredibly interesting trait for breeding objectives and a valuable...
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Cytogenetic analysis reveals a mechanism of compatibility in distant hybridization between tree peony and herbaceous peony
Cross-incompatibility is the major challenge in inter-sectional distant hybridization between tree peonies ( Paeonia sect. Moutan ) and herbaceous...
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Highly efficient generation of bacterial leaf blight-resistant and transgene-free rice using a genome editing and multiplexed selection system
BackgroundRice leaf blight, which is a devastating disease worldwide, is caused by the bacterium Xanthomonas oryzae pv . oryzae ( Xoo ). The...
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Targeted generation of polyploids in Hydrangea macrophylla through cross-based breeding
BackgroundUp to now, diploid and triploid cultivars were reported for the ornamental crop Hydrangea macrophylla . Especially, the origin of triploids...
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Chromosome behavior during meiosis in pollen mother cells from Saccharum officinarum × Erianthus arundinaceus F1 hybrids
BackgroundIn recent years, sugarcane has attracted increasing attention as an energy crop. Wild resources are widely used to improve the narrow...
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Genetic map** of pollen fertility restoration QTLs in rye (Secale cereale L.) with CMS Pampa
Cytoplasmic male sterility (CMS) is a widely applied plant breeding tool for hybrid seed production. The phenomenon is often caused by chimeric genes...
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Genetic and Breeding Advancement in Buckwheat: A Pseudocereal of Himalaya
Buckwheat is an emerging pseudocereal crop with significant nutritional and agronomic importance. Buckwheat consists of both diploid (2n = 16) and...
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Two pathways of 2n gamete formation and differences in the frequencies of 2n gametes between wild species and interspecific hybrids
Key messageEpidendrum produces 2
n gametes with high frequency. This paper is the first to report on multiple pathways for forming 2 ...