Interspecific hybrid production by reciprocal crosses betweenDianthus caryophyllusL. andDianthus×isensisHirahataetKitamura

Nimura, Mikio; Kato, Juntaro; Mii, Masahiro

doi:10.1080/14620316.2006.11512188

Cited by 11 publications

(2 citation statements)

References 10 publications

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“…In the case of mitotic polyploidization, no homologous recombination can be seen in subsequent progenies, although sterile interspecific hybrids can restore their fertility. On the other hand, meiotic polyploidization such as unreduced gamete formation has occasionally been observed in plant species or interspecific hybrids, and 2n gametes were produced instead of normal haploid (n) gametes (Nimura et al 2006;Lim et al 2001). Hermsen (1984) described that diploid gamete formation could occur in diploid plant as a result of first-division restitution (FDR) or second-division restitution (SDR) in meiosis.…”

Section: Introductionmentioning

confidence: 97%

Unreduced 3x gamete formation of allotriploid hybrid derived from the cross of Primula denticulata (4x) × P. rosea (2x) as a causal factor for producing pentaploid hybrids in the backcross with pollen of tetraploid P. denticulata

et al. 2009

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Unreduced 3x gamete formation of allotriploid hybrid derived from the cross of Primula denticulata (4x) 3 P. rosea (2x) as a causal factor for producing pentaploid hybrids in the backcross with pollen of tetraploid P. denticulata Abstract A triploid hybrid, which was obtained from interspecific crosses between tetraploid Primula denticulata (2n = 4x = 44) and P. rosea (2n = 2x = 22), successfully produced 11 plants by backcrossing with pollen of tetraploid P. denticulata. Analysis of ploidy level using flow cytometry and chromosome counting in the 11 BC 1 plants revealed that all progeny had much larger DNA contents and chromosome number than both parents. In this triploid-tetraploid (3x-4x) crossing, progeny was predominantly true or near pentaploid presumably produced by the fertilization between true or near triploid female gamete produced from triploid hybrid and diploid pollen of tetraploid P. denticulata. These results suggest that unreduced (3x) or near triploid female gametes were partially produced by single step meiosis, either first-division restitution or second-division restitution process. The zygotes formed by the fertilization between true or near triploid egg produced by single step meiosis in triploid hybrid and diploid pollen produced by normal meiosis of tetraploid P. denticulata might be the only survivors in embryogenesis.

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Section: Introductionmentioning

confidence: 97%

Unreduced 3x gamete formation of allotriploid hybrid derived from the cross of Primula denticulata (4x) × P. rosea (2x) as a causal factor for producing pentaploid hybrids in the backcross with pollen of tetraploid P. denticulata

et al. 2009

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“…To enlarge the genetic diversity, interspecific hybridization is noticed as one of the most beneficial offers. [3]. Pollen performance is an important parameter during the interspecific hybridization process due to the lack of pollen performance during the process reduces the success of hybridization [4].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Brassinosteroid on Pollen Germination and Tube Growth in Three Dianthus Species

Genç

2019

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

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In this study, the effect of brassinosteroid on pollen germination and tube growth of Dianthus calocephalus, Dianthus carmelitarum, and Dianthus deltoides were investigated. Brassinosteroid treatments did not cause a significant increase in pollen germination of Dianthus calocephalus, while the pollen tube length significantly increased by 8.39% at 0.05 mM, 43.75% at 0.25 mM, 38.40% at 0.5 mM and 7.30% at 2.5 mM in compare the control. Also, brassinosteroid treatments did not cause a significant increase in pollen germination, and tube length in Dianthus carmelitanum. Although brassinosteroid treatments did not cause a significant change in pollen tube length in Dianthus deltoides, 0.05 mM, 0.025 mM and 0.5 mM brassinosteroid treatments were found to have an increasing effect on pollen germination. Besides, brassinosteroid treatment did not cause a significant change in tube abnormality for all species and all concentration.

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Breeding of Interspecific Hybridization Among Carnation (Dianthus caryophyllus L.), Dianthus japonicus Thunb., and Dianthus × isensis Hirahata et Kitam.

Nimura¹

2020

Compendium of Plant Genomes

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Interspecific hybrid production by reciprocal crosses betweenDianthus caryophyllusL. andDianthus×isensisHirahataetKitamura

Cited by 11 publications

References 10 publications

Unreduced 3x gamete formation of allotriploid hybrid derived from the cross of Primula denticulata (4x) × P. rosea (2x) as a causal factor for producing pentaploid hybrids in the backcross with pollen of tetraploid P. denticulata

Unreduced 3x gamete formation of allotriploid hybrid derived from the cross of Primula denticulata (4x) × P. rosea (2x) as a causal factor for producing pentaploid hybrids in the backcross with pollen of tetraploid P. denticulata

The Effect of Brassinosteroid on Pollen Germination and Tube Growth in Three Dianthus Species

Breeding of Interspecific Hybridization Among Carnation (Dianthus caryophyllus L.), Dianthus japonicus Thunb., and Dianthus × isensis Hirahata et Kitam.

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