Intergeneric somatic hybrid plants of Citrus sinensis cv. Hamlin and Poncirus trifoliata cv. Flying Dragon

1988 ◽  
Vol 7 (1) ◽  
pp. 5-8 ◽  
Author(s):  
J. W. Grosser ◽  
F. G. Gmitter ◽  
J. L. Chandler
Keyword(s):  
Somatic Hybrid ◽  
Citrus Sinensis ◽  
Poncirus Trifoliata ◽  
Hybrid Plants ◽  
Intergeneric Somatic Hybrid

Somatic hybrid plants obtained by protoplast fusion between Citrus sinensis and Poncirus trifoliata

1985 ◽  
Vol 71 (1) ◽  
pp. 1-4 ◽  
Author(s):  
T. Ohgawara ◽  
S. Kobayashi ◽  
E. Ohgawara ◽  
H. Uchimiya ◽  
S. Ishii
Keyword(s):  
Protoplast Fusion ◽  
Somatic Hybrid ◽  
Citrus Sinensis ◽  
Poncirus Trifoliata ◽  
Hybrid Plants

scholarly journals Somatic Hybridization of Complementary Citrus Rootstock:Five New Hybrids

HortScience ◽  
1994 ◽  
Vol 29 (7) ◽  
pp. 812-813 ◽  
Author(s):  
Jude W. Grosser ◽  
Frederick G. Gmitter ◽  
J.L. Chandler ◽  
Eliezer S. Louzada
Keyword(s):  
Somatic Hybrid ◽  
Somatic Hybridization ◽  
Poncirus Trifoliata ◽  
Sour Orange ◽  
Trifoliate Orange ◽  
Hybrid Plants ◽  
Regenerated Plants ◽  
Citrus Rootstock ◽  
Sexual Hybrid ◽  
Cleopatra Mandarin

Protoplasm culture following polyethylene glycol-induced fusion resulted in the regeneration of tetraploid somatic hybrid plants from the following attempted parental combinations: Cleopatra mandarin (Citrus reticulata Blanco) + Argentine trifoliate orange [Poncirus trifoliata (L.) Raf.]; `Succari' sweet orange [C. sinensis (L.) Osb.] + Argentine trifoliate orange; sour orange (C. aurantium L.) + Flying Dragon trifoliate orange (P. trifolita); sour orange + Rangpur (C. limonia Osb.); and Milam lemon (purported sexual hybrid of C. jambhiri Lush × C. sinensis) + Sun Chu Sha mandarin (C. reticulate Blanco). Protoplasm isolation, fusion, and culture were conducted according to previously published methods. Regenerated plants were classified according to leaf morphology, chromosome number, and peroxidase, phosphoglucomutase, and phosphoglucose isomerase leaf isozyme profiles. All of the somatic hybrid plants were tetraploid, as expected (2n = 4x = 36), and all five selections have been propagated and entered into commercial citrus rootstock trials.

scholarly journals Eight New Somatic Hybrid Citrus Rootstocks with Potential for Improved Disease Resistance

HortScience ◽  
1992 ◽  
Vol 27 (9) ◽  
pp. 1033-1036 ◽  
Author(s):  
Eliezer S. Louzada ◽  
Jude W. Grosseti ◽  
Frederick G. Gmitter ◽  
Beatriz Nielsen ◽  
J.L. Chandler ◽  
...  
Keyword(s):  
Somatic Hybrid ◽  
Somatic Hybrids ◽  
Sweet Orange ◽  
Field Trials ◽  
Poncirus Trifoliata ◽  
Sour Orange ◽  
Rough Lemon ◽  
Hybrid Plants ◽  
Volkamer Lemon ◽  
Cleopatra Mandarin

Protoplast culture following polyethylene glycol-induced fusion resulted in the regeneration of vigorous tetraploid somatic hybrid plants from eight complementary parental rootstock combinations: Citrus reticulata Blanco (Cleopatra mandarin) + C. aurantium L. (sour orange), C. reticulata (Cleopatra mandarin) + C. jambhiri Lush (rough lemon), C. reticulata (Cleopatra mandarin) + C. volkameriana Ten. & Pasq. (Volkamer lemon), C. reticulata (Cleopatra mandarin) + C. limonia Osb. (Rang-pur), C. sinensis (L.) Osb. (Hamlin sweet orange) + C. limonia (Rangpur), C. aurantium (sour orange) + C. volkameriana (Volkamer lemon) zygotic seedling, C. auruntium hybrid (Smooth Flat Seville) + C. jambhiri (rough lemon), and C. sinensis (Valencia sweet orange) + Carrizo citrange [C. paradisi Macf. × Poncirus trifoliata (L.) Raf.]. Diploid plants were regenerated from nonfused callus-derived protoplasts of Valencia sweet orange and Smooth Flat Seville and from nonfused leaf protoplasts of sour orange, Rangpur, rough lemon, and Volkamer lemon. Regenerated plants were classified according to leaf morphology, chromosome number, and leaf isozyme profiles. All somatic hybrid plants were tetraploid (2n = 4× = 36). One autotetraploid plant of the Volkamer lemon zygotic was recovered, apparently resulting from a homokaryotic fusion. These eight new citrus somatic hybrids have been propagated and entered into field trials.

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