scholarly journals PRODUCTION OF SOMATIC HYBRIDS BETWEEN LYCOPERSICON HIRSUTUM AND L. ESCULENTUM.

HortScience ◽  
1991 ◽  
Vol 26 (6) ◽  
pp. 713F-713 ◽  
Author(s):  
T.J. Montagno ◽  
P.S. Jourdan ◽  
S. Z. Berry
Keyword(s):  
Somatic Hybrids ◽  
Leaf Shape ◽  
Fruit Size ◽  
Iodoacetic Acid ◽  
Lycopersicon Hirsutum ◽  
Unilateral Incompatibility ◽  
Hybrid Plants ◽  
Intermediate Morphology ◽  
Fusion Products ◽  
Selection Of

Unilateral incompatibility has limited the direction of crossing between L. esculentum and L. hirsutum; the latter can only serve as the pollen parent. In an attempt to introduce the L. hirsutum cytoplasm into L. esculentum, thirty-three somatic hybrid plants have been regenerated following four separate fusions between leaf protoplasts of L. hirsutum PI 126445 and etiolated hypocotyl protoplasts of L. esculentum (`OH7870', `OH832', and `OH8245'). A 33% PEG solution supplemented with 10% DMSO was used as the fusogen. Selection of fusion products was based on treatment of L. hirsutum protoplasts with 1 mM iodoacetic acid and non-regenerability of the L. esculentum genotypes. Hybridity was initially confirmed by intermediate morphology, including leaf shape, type of trichomes, flower shape, stigma placement, and fruit size and color. Isozyme analysis for GOT, PGM, and 6-PDH verified hybridity. Six of the hybrids produced viable seed upon selfing. At least some of the hybrids contained chloroplast DNA from L. hirsutum, indicating that the wild species cytoplasm may be present in these plants.

scholarly journals Morphological and phenological properties of sour cherry varieties grown in Hungary and their inter-incompatibility relations

2000 ◽  
Vol 6 (1) ◽  
Author(s):  
J. Nyéki ◽  
Z. Szabó ◽  
T. Szabó ◽  
M. Soltész
Keyword(s):  
Morphological Traits ◽  
Fruit Size ◽  
Sour Cherry ◽  
Point Of View ◽  
The Other ◽  
Open Pollination ◽  
Unilateral Incompatibility ◽  
Ripening Time ◽  
New Varieties ◽  
Selection Of

Regular observations and experiments were performed during a 14 year period on 6 sour cherry varieties. The morphological traits of leaves and fruits were compared, and the phenology of blooming as well as of ripening dates served to start an estimation of the possibilities of mutual pollination and the planning of harvest operations. Experiments involved obligate autogamy, artificially controlled allogamy and open pollination in order to reveal self-fertility, self-sterility or inter-incompatibility relations. The varietal characters represent, each, different values in the distinction of the items, because of their intra-varietal variability. From that point of view, the most reliable are the data of blooming and ripening time, fruit size and the fertility relations. Inter-incompatibility was observed between the group of self-fertile, "Pándy type" varieties (`Újfehértói fürtös’, ‘Debreceni bőtermő’, ‘Kántorjánosi’) on one side and the selection of Pándy 7', a self-sterile variety on the other side. Unilateral incompatibility has been detected within the former group of new, self-fertile varieties, the combinations: (`Újfehértói fürtös’ x ‘Debreceni bőtermő’ as well as `Újfehértói fürtös’ x Kántorjánosi’. Our results prove the close kinship between those three new varieties and the original Pándy variety on the base of being highly similar in their morphology and also of the fact of their inter-incompatibility, though unilateral.  

scholarly journals Protoplast cultures and protoplast fusion focused on Brassicaceae: A review

2011 ◽  
Vol 31 (No. 4) ◽  
pp. 140-157 ◽  
Author(s):  
B. Navrátilová
Keyword(s):  
Protoplast Fusion ◽  
Somatic Hybridization ◽  
Somatic Hybrids ◽  
Stress Factors ◽  
Agricultural Crops ◽  
Factors Influencing ◽  
Hybrid Plants ◽  
Transfer Genes ◽  
The Family ◽  
Selection Of

The subjects of this article are protoplast isolations and protoplast fusions, in particular their history, a review of factors influencing the protoplasts isolation and fusion, selection of hybrid plants and utilization of somatic hybrids in plant breed-ing. Somatic hybridization through protoplast fusion can overcome sexual incompatibility among plant species or genera; transfer genes of resistance to diseases (viral, bacterial, fungal), pests, herbicides and others stress factors; obtain cybrid plants; transfer cytoplasmic male sterility or incease content of secondary metabolites in hybrid plants. The article is focussed mainly on the family Brassicaceae because among representatives are significant crops for the human population. Various successful combination of intraspecific, interspecific and intergeneric protoplast fusion were reported between representatives of the family Brassicaceae with the genus Brassica which belonged to the first agricultural crops used for the isolation of protoplast.  

scholarly journals ​Advances in Breeding of Jackfruit Crop: A Review

2021 ◽  
Author(s):  
R.K. Ramachandra ◽  
Vishnuvardhana . ◽  
B. Fakrudin ◽  
B. Anjaneya Reddy
Keyword(s):  
Leaf Shape ◽  
Fruit Size ◽  
Value Added ◽  
Leaf Size ◽  
Fruit Shape ◽  
Detailed Knowledge ◽  
Size Number ◽  
Hybrid Variety ◽  
Selection Of ◽  
Value Added Products

The improvement of jackfruit is required to make it amenable for intensive cultivation and make it suitable for a variety of value-added products. There is a significant variation for various traits such as plant phenology, leaf shape, leaf size, fruit shape, fruit size, number of fruits per plant, flake colour, number of flakes per fruit etc. The jackfruit crop has long juvenility, high clonal heterozygosity, recalcitrant type of seeds make it difficult to improvement of jackfruit varieties or hybrids, but on the other hand ease of vegetative propagation of hybrids or varieties is advantageous for the jackfruit breeder. The development of jackfruit is again based on the selection of clones especially for small-sized quality fruits, dwarf, less gum type, disease and pest resistance etc. The detailed knowledge on phenology, inheritance pattern and advanced techniques for hybrid/variety development will be useful to overcome the problems of jackfruit breeding viz fruit size, gummier fruits, susceptibility to disease and pests etc. The development of genetic markers has further reduced the uncertainty in the breeding of jackfruit and maintains the hybrid/varietal populations with desirable characteristics.

Salacia fugax, an elusive new South American Salacioideae (Celastraceae)

Phytotaxa ◽  
2017 ◽  
Vol 317 (4) ◽  
pp. 292 ◽  
Author(s):  
JULIO ANTONIO LOMBARDI ◽  
MARCELA SERNA GONZÁLEZ
Keyword(s):  
New Species ◽  
New South ◽  
Leaf Shape ◽  
Fruit Size ◽  
Leaf Size ◽  
South American ◽  
South American Species ◽  
Size And Shape ◽  
Fruit Size And Shape

A new South American species of Salacia (Celastraceae, Salacioideae) found in Colombia and Venezuela, Salacia fugax Lombardi & M.Serna is described here. It is characterized by its indument, small long acuminate leaves with short petioles, branched inflorescences, flowers with an annular-pulvinate disk, and small pyriform fruits. This new species resembles S. mennegana J.Hedin ex Lombardi and S. opacifolia (J.F.Macbr.) A.C.Sm. by its short petioles, leaf shape, slender branched inflorescence, perianth form, and similar disc, but S. fugax differs by its hairs, leaf size and apex, calyx, and fruit size and shape.

Selection of Somatic Hybrid Plants in Nicotiana Through Fluorescence-Activated Sorting of Protoplasts

1985 ◽  
Vol 3 (9) ◽  
pp. 811-816 ◽  
Author(s):  
Claudio L. Afonso ◽  
Kristi R. Harkins ◽  
Mary A. Thomas-Compton ◽  
Ann E. Krejci ◽  
David W. Galbraith
Keyword(s):  
Somatic Hybrid ◽  
Hybrid Plants ◽  
Selection Of
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