Cytogenetics of a new trispecies hybrid in cotton: [(Gossypium hirsutum L. × G. thurberi Tod.)2 × G. longicalyx Hutch. & Lee]

@article{Konan2007CytogeneticsOA,
  title={Cytogenetics of a new trispecies hybrid in cotton: [(Gossypium hirsutum L. × G. thurberi Tod.)2 × G. longicalyx Hutch. \& Lee]},
  author={O. Konan and Ang{\'e}lique D'Hont and Jean-Pierre Baudoin and Guy Mergeai},
  journal={Plant Breeding},
  year={2007},
  volume={126},
  pages={176-181}
}
A three-species hybrid named HTL including Gossypium hirsutum L. [2n = 4 x = 52, (AD), genome] was created using the pseudophyletic introgression method with G. longicalyx Hutch. & Lee (2n = 2x = 26, F, genome) as donor parent and G. thurberi Tod. (2n = 2x = 26, D1 genome) as bridge species. The new hybrid was totally self-sterile and its interspecific status was confirmed using simple sequence repeat markers and cytogenetic analysis. Cytogenetic studies showed that its chromosome configuration… 

Figures and Tables from this paper

Relationship between meiotic behaviour and fertility in backcross-1 derivatives of the [(Gossypium hirsutum × G. thurberi)2 × G. longicalyx] trispecies hybrid
TLDR
Most BC1 plants gave significantly finer fiber compared to the cultivated G. hirsutum, and Genomic in situ hybridization (GISH) revealed presence of entire chromosomes of G. longicalyx as well as recombinant chromosomes in the backcross derivatives.
Interspecific hybridization in Gossypium L.: characterization of progenies with different ploidy-confirmed multigenomic backgrounds
TLDR
Chromosomal association and microsatellite analysis of three progeny genotypes confirmed that they share multigenomic background from the three cotton species (A2, AhDh and B1 genome).
Phenotypic, Cytological and Molecular (AFLP) Analyses of the Cotton Synthetic Allohexaploid Hybrid (G. hirsutum × G. longicalyx)²
TLDR
The studied genotype showed a quite good level of pollen fertility, and apart from larger seeds and some minor seedling anomalies, most of its morphological characteristics were intermediate between the two parental species, proving its hexaploid status.
A New Synthetic Allotetraploid (A1A1G2G2) between Gossypium herbaceum and G. australe: Bridging for Simultaneously Transferring Favorable Genes from These Two Diploid Species into Upland Cotton
TLDR
The synthetic allotetraploid will be quite useful for polyploidy evolutionary studies and as a bridge for transferring favorable genes from these two diploid species into Upland cotton through hybridization.
Bridging Classical and Molecular Cytogenetics of Gossypium
TLDR
The achievements of classical and molecular cytogenetic investigations in Gossypium are summarized and the relevance of bridging these approaches in GOSSypium genetic studies and exploitation is underlined.
Identification of Quantitative Trait Loci for Fiber Quality Properties on Homoeologous Chromosomes 13 and 18 of Gossypium klotzschianum
TLDR
This study showed that some G. klotzschianum loci associated with fiber quality can be successfully transferred into upland cotton and display genetic stability.
Analyse du déterminisme génétique de l’inhibition de la synthèse du gossypol dans la graine chez la descendance de l’hybride [(Gossypium hirsutum L. x G. raimondii Ulb.)² x G. sturtianum Willis]
TLDR
The segregation ratio of 10 Gossypium sturtianum specific SSR markers belonging to linkage groups c2-c14, c3-c17, and c6-c25 was analysed in the BC2S6 progeny of the HRS hybrid, showing a strong SD with a zygotic selection.
Potential of ten wild diploid cotton species for the improvement of fiber fineness of upland cotton through interspecific hybridization
TLDR
The results showed the potential of four wild species to significantly improve the fiber fineness of upland cotton in a hybrid configuration, and G. longicalyx stood out for its exceptional Fiber fineness, and its remarkable impact on reducing the fiberFineness of G. hirsutum L.
Validation of Competitive Ability of Diverse Canola Accessions against Annual Ryegrass under Glasshouse and Field Conditions
TLDR
A glasshouse-based evaluation approach can be used to determine the suppressive ability of advanced breeding lines for suppression of ryegrass growth, and it is suggested that initial screening of large collections of germplasm can be conducted under glasshouse conditions, with selected genotypes further evaluated in the field.
The future of nematode management in cotton.
TLDR
Substantial progress is being made in the identification, characterization and mapping of loci for resistance to Meloidogyne incognita and Rotylenchulus reniformis, which will lead to efficient marker-assisted selection systems that will likely result in development and release of nematode-resistant cotton cultivars with superior yield potential and high fiber quality.
...
...

References

SHOWING 1-10 OF 28 REFERENCES
Cytogenetics of the ‘glandless‐seed and glanded‐plant’ trait from Gossypium sturtianum Willis introgressed into upland cotton (Gossypium hirsutum L.)
TLDR
The cross of both trispecific hybrids by G. hirsutum produced the first backcross progenies (BCl) and can be used in breeding programmes aiming at the introgression of the ‘glandless-seed and glanded-plant’ trait into a cultivar of upland cotton.
THE CYTOLOGY OF A HYBRID BETWEEN GOSSYPIUM HIRSUTUM AND G. LONGICALYX
TLDR
The cytological analyses of the two triploid plants were similar, and have been combined in TabIe I, which is interpreted as evidence that G. longicnlyx represents a new Gossypiz~nz cytotype.
Development of high-gossypol cotton plants with low-gossypol seeds using trispecies bridge crosses and in vitro culture of seed embryos
TLDR
Plants derived from seeds having a reduced level of gossypol constitute very interesting germplasm to develop a cultivated glanded cotton with low-gossypoli seeds.
Forty years of Genetic improvement of cotton through interspecific hybridisation at Gembloux Agricultural University : achievement and prospects
TLDR
The main achievements of this research work are presented here and the prospects of using in the future the large interspecific hybrid collection available at Gembloux Agricultural University to improve cotton are discussed.
Genetics, cytology and evolution of Gossypium.
Identification and characterisation of sugarcane intergeneric hybrids, Saccharum officinarum x Erianthus arundinaceus, with molecular markers and DNA in situ hybridisation
TLDR
Molecular markers were used to characterise sugarcane intergeneric hybrids between S. officinarum and E. arundinaceus and the potential of these techniques to monitor the Erianthus genome during the introgression process is discussed.
A revision of Gossypium sect. Grandicalyx (Malvaceae), including the description of six new species
ABsTRAcr. Gossypium sect. Grandicalyx occurs in tropical Australia, with all of the 11 species being found in the Kimberley region of northwestern Australia except G. cunninghamii, which is found on
Studies of introgression of the «glandless seeds-glanded plant» trait from Gossypium bickii into cultivated Upland cotton (G. hirsutum)
TLDR
Les plantules qui se developpent a partir des graines de cet allotetraploide n'ont pas de racines et ne peuvent, donc, survivre sans greffage, alors que le triple hybride possede les caracteres parentaux et que the plante ressemble globalement au cotonnier Upland.
Simple Sequence Repeat–Based Assessment of Genetic Diversity in Cotton Race Stock Accessions
TLDR
The recovery of the primitive recurrent parent could be improved by marker-assisted backcrossing with SSR markers reported in this experiment, and careful genotyping before introgression into breeding programs is suggested to ensure maximum genetic diversity and integrity of the exotic race-stock donor germplasm.
Exogenous hormone applications at pollination for in vitro and in vivo production of cotton interspecific hybrids
  • D. Altman
  • Biology, Medicine
    Plant Cell Reports
  • 2004
TLDR
Generally, exogenous hormones used with standard hybridization techniques were superior to in vitro methods, but for some crosses, embryo culture following hormone applications was warranted.
...
...