Wide hybridization between oat and pearl millet belonging to different subfamilies of Poaceae

  title={Wide hybridization between oat and pearl millet belonging to different subfamilies of Poaceae},
  author={Takayoshi Ishii and Hiroyuki Tanaka and Amin Elsadig Eltayeb and Hisashi Tsujimoto},
  journal={Plant Reproduction},
Oat (Avena sativa L.) and pearl millet (Pennisetum glaucum L.) belong to different subfamilies of Poaceae. When emasculated oat was pollinated by millet, fertilization took place and all seven millet chromosomes were retained along the complete haploid oat complement during early stages of embryogenesis. Fourteen days after pollination, we cultured 170 embryos onto rescue medium, of which 99 were attached with endosperm tissue. Twenty-one embryos germinated and showed shoot growth. One of them… 

Factors inducing regeneration response in oat (Avena sativa L.) anther culture

Despite the high resistance of oat to the process of androgenesis, all tested cultivars produced embryo-like structures and only two of them, ‘Akt’ and ‘Chwat’, produced fertile doubled haploid plants.

An Attempt to Produce Oat Haploids Using Oat X Maize Hybridization Technique

The aim of the study was to develop oat haploids through crossing between oat as a female and maize as male parent followed by embryo rescue. Four oats genotypes of diverse origin along with popular

Complex characterization of oat (Avena sativa L.) lines obtained by wide crossing with maize (Zea mays L.)

The identification and molecular-cytogenetic characterization of oat × maize hybrids is identified and the complete or incomplete chromosomes elimination of maize occur.

The effect of auxin and genotype on the production of Avena sativa L. doubled haploid lines

Haploid embryos were obtained from all genotypes tested, however, their frequency differed between individual genotypes, and the highest number of embryos per emasculated florets was obtained from the Arab × Typhon genotype.

The effect of light intensity on the production of oat (Avena sativa L.) doubled haploids through oat × maize crosses

The results show that the growth conditions of the donor plant and light intensity during in vitro culture can affect the development of haploid embryos, which may have an impact on oat breeding programs using oat × maize crosses.

The effect of genotype, media composition, pH and sugar concentrations on oat (Avena sativa L.) doubled haploid production through oat × maize crosses

Doubled haploid (DH) technology in oat has not reached the same stage as in other cereals leading to its application in plant breeding, and all DH lines are incorporated to breeding programs for the development of new cultivars.

The effect of 2,4-dichlorophenoxyacetic acid on the production of oat (Avena sativa L.) doubled haploid lines through wide hybridization

Background Development of new cultivars is one of the vital options for adapting agriculture to climate change, and the production of doubled haploid (DH) plants can make a significant contribution

The Effect of Zinc, Copper, and Silver Ions on Oat (Avena sativa L.) Androgenesis

Oat (Avena sativa L.) cultivars ‘Bingo’ and ‘Chwat’ were used to compare the embryogenesis competence of another culture, which confirmed the cultivar dependency and the possibilities of adjusting the media nutrient composition.

Oat Doubled Haploid Production Through Wide Hybridization with Maize.

This chapter describes a method to produce oat DHs by crossing oat with maize, covering all steps from crossings to haploid plant regeneration and chromosome doubling.

Preferential recruitment of the maternal centromere-specific histone H3 (CENH3) in oat (Avena sativa L.) × pearl millet (Pennisetum glaucum L.) hybrid embryos

Comparison of CENH3 genes among Poaceae species that show chromosome elimination in interspecific hybrids revealed that the loop 1 regions of oat and pearl millet CenH3 exhibit exceptionally high similarity.



Chromosome elimination by wide hybridization between Triticeae or oat plant and pearl millet: pearl millet chromosome dynamics in hybrid embryo cells

The cause of the chromosome elimination of wheat–pearl millet hybrid is not malfunction of the kinetochores binding to the spindles but the malfunction ofthe sister chromatids segregation at anaphase especially of chromosome arm.

Haploid oat plants produced by application of maize pollen to emasculated oat florets.

The objective was to develop more efficient methods for producing oat haploids to use in selecting mutants, recovering aneuploids, and producing doubled-haploid lines for genetic and breeding studies.

Cytological and molecular characterization of oat×maize partial hybrids

This constitutes the first report of the production of karyotypically stable partial hybrids involving highly unrelated species from two subfamilies of the Gramineae and the subsequent recovery of fertile oat-maize chromosome addition lines.

Oat haploids from anther culture and from wide hybridizations

Breeders’ concerns in addition to increased productivity of high quality grain and forage are primarily focused on disease resistance, particularly toward the fungal pathogens including rusts, smuts, and mildews and toward various viruses including barley yellow dwarf virus.

A complete set of maize individual chromosome additions to the oat genome.

The development and general utility of this set of oat-maize addition lines as a novel tool for maize genomics and genetics is discussed.

The frequency of fertilization in wheat × pearl millet crosses

Wheat × pearl millet crosses were studied to determine whether fertilization occurred and whether any resulting hybrids were karyotypically stable, and hybrid embryos were kARYotypically unstable.

An integrated genetic map and a new set of simple sequence repeat markers for pearl millet, Pennisetum glaucum

The data suggest that extreme localization of recombination toward the chromosome ends, resulting in gaps on the genetic map of 30 cM or more in the distal regions, is typical for pearl millet.

Causal Relationships between the Polar Nuclei in Double Fertilization and Interspecific Cross-incompatibility in Avena

In double fertilization of angiosperms the triple fusion of two polar nuclei with a secondary male nucleus is apparently a biological isolation mechanism and may be the most effective barrier to hybridization on occasion.

Hypersensitive Response-Like Reaction Is Associated with Hybrid Necrosis in Interspecific Crosses between Tetraploid Wheat and Aegilops tauschii Coss

Taking these results together strongly suggests that an autoimmune response might be triggered by intergenomic incompatibility between the tetraploid wheat and Ae.

Ploidy barrier to endosperm development in maize.

  • B. Lin
  • Biology, Medicine
  • 1984
Maize kernels inheriting the indeterminate gametophyte mutant (ig) on the female side had endosperms that ranged in ploidy level from diploid to nonaploid, whereas tetraploid endosperm having two maternal and two paternal chromosome sets was highly defective and conditioned abortion.