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Experimental Interspecific Hybrids in Nicotiana and Barriers to Hybridization
The history of interspecific hybridization in Nicotiana is reviewed, starting with the work of Koelreuter who in the eighteenth century produced a...
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A cyclical switch of gametogenic pathways in hybrids depends on the ploidy level
The cellular and molecular mechanisms governing sexual reproduction are conserved across eukaryotes. Nevertheless, hybridization can disrupt these...
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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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Meiosis and male fertility in F1 interspecific hybrids (Passiflora vitifolia vs. Passiflora hatschbachii)
Interspecific hybrids can be studied using methodologies in which the male gamete with high reproduction potential, viability, and fertility is...
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Anther-derived microspore embryogenesis in pepper hybrids orobelle and Bomby
BackgroundTraditional breeding methods have long been employed worldwide for the evaluation and development of pepper cultivars. However, these...
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Reproductive Characteristics of Reciprocal Hybrids of Sturgeon Species with Different Ploidy Levels: Sterlet Acipenser ruthenus and Kaluga A. dauricus (Acipenseridae)
Abstract —We present the reproductive characteristics of fertile reciprocal hybrids of two sturgeon species with different ploidy levels, sterlet Acipenser...
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Meiotic drive against chromosome fusions in butterfly hybrids
Species frequently differ in the number and structure of chromosomes they harbor, but individuals that are heterozygous for chromosomal...
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Chromosome stability of synthetic Triticum turgidum–Aegilops umbellulata hybrids
BackgroundUnreduced gamete formation during meiosis plays a critical role in natural polyploidization. However, the unreduced gamete formation...
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Early selection of carrot somatic hybrids: a promising tool for species with high regenerative ability
BackgroundSince its discovery, somatic hybridization has been used to overcome the sexual barriers between cultivated and wild species. A combination...
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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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Nuclear-Cytoplasmic Conflict in Hybrids of Roach Rutilus rutilus and Bream Abramis brama as a Consequence of the Species Divergence in Body and Genome Sizes
AbstractThe species divergence in body size is often associated with changes in the genome size and the rate of mitochondrial DNA (mtDNA) evolution....
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Dissecting the sequence and structural determinants guiding m6A deposition and evolution via inter- and intra-species hybrids
BackgroundN6-methyladenosine (m6A) is the most abundant mRNA modification, and controls mRNA stability. m6A distribution varies considerably between...
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Correlation of stages of microsporogenesis with bud and anther morphology in pepper genotypes through DAPI staining with different levels of mordant in cytological fixative
The haploid and doubled haploid plants serve as valuable tools for breeders due to their ability to expedite the map** of genes of agronomic...
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Recovering triploid citrus hybrids from 2x × 2x sexual crosses with the aid of embryo rescue and flow cytometry in Turkey
BackgroundTurkey is one of the major exporters of mandarins in the Mediterranean region. Seedlessness in citrus, which is one of the most desired...
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Genomic Prediction of Complex Traits in an Allogamous Annual Crop: The Case of Maize Single-Cross Hybrids
For many plant and animal species, commercial products are hybrids between individuals from different genetic groups. For allogamous plant species...
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Allele segregation analysis of F1 hybrids between independent Brassica allohexaploid lineages
In the Brassica genus, we find both diploid species (one genome) and allotetraploid species (two different genomes) but no naturally occurring...
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The common occurrence of 2n eggs by lily F1 distant hybrids and its significance on lily breeding: a case of analyzing OT hybrids
It has been reported that F1 LA hybrids could produce a small number of functional 2 n eggs regardless of their male sterility, however, there are...
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Genome dosage alteration caused by chromosome pyramiding and shuffling effects on karyotypic heterogeneity, reproductive diversity, and phenotypic variation in Zea–Tripsacum allopolyploids
Key messageWe developed an array of Zea – Tripsacum tri-hybrid allopolyploids with multiple ploidies. We unveiled that changes in genome dosage due to...
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Obtainment of intraspecific hybrids in strictly cleistogamous Vicia ervilia (L.) Willd.
Bitter vetch ( Vicia ervilia (L.) Willd.), one of the Near Eastern founder crops, is an annual cleistogamous legume domesticated during the Neolithic...
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Recent Advances in Engineering of In Vivo Haploid Induction Systems
Doubled haploid (DH) technology is an important approach to accelerate genetic gain via a shortened breeding cycle, which relies on the ability to...