Development of a procedure for production of haploid plants through microspore culture of roselle (Hibiscus sabdariffa L.)

2012 ◽  
Vol 145 ◽  
pp. 52-61 ◽  
Author(s):  
Rohayu Ma’arup ◽  
Maheran Abd Aziz ◽  
Mohamad Osman
Crop Science ◽  
2012 ◽  
Vol 52 (5) ◽  
pp. 2314-2320 ◽  
Author(s):  
Meenakshi Santra ◽  
Nii Ankrah ◽  
Dipak K. Santra ◽  
Kimberlee K. Kidwell

2014 ◽  
Vol 185 ◽  
pp. S114
Author(s):  
Nargul Zh. Omirbekova ◽  
Karim K. Boguspayev ◽  
Aizhan I. Zhussupova ◽  
Zhazira K. Zhunusbaeva

2021 ◽  
pp. 27-33
Author(s):  
E. A. Dzhos ◽  
D. V. Shumilina ◽  
O. N. Pyshnaya ◽  
M. I. Mamedov ◽  
A. A. Baikov ◽  
...  

Relevance. Pepper is a common crop both for fresh consumption and for the preparation of spices. Recently, along with the increasing popularity of C. annuum L. pepper, there is increasing interest in other species of this genus, which have a number of breeding and important properties. The most important method of enriching the gene pool of cultivated plants is distant hybridization, through which valuable traits are transferred from wild species to cultivated ones. The development of a new variety is a lengthy process, stretching over several years. In this regard, breeders have faced the challenge of obtaining pure lines to create a pepper hybrid with desired properties by applying modern biotechnological methods that will accelerate this process. One of them is the method of microspore culture, which allows mass production of haploid plants, reducing the time for creating constant parental lines.Material and methods. The aim of the work was to create an interspecific hybrid of hot pepper (C. annuum L. x C. frutescens L.) with high ornamental properties, a complex of economically valuable traits, with good taste qualities. The research was carried out in the film greenhouse of FSBSI FSVC in the Moscow region. The research material was a variety population of hot pepper Capsicum frutescens Cz-544-14, used as a paternal line, which was heterogeneous, and a pure line of C. annuum L. (Pb-551) created by classical breeding.Results. The pepper hybrid F1 Christmas bouquet was created as a result of hybridization of species parental forms obtained by different methods (biotechnological and classical). To accelerate the production of an aligned paternal form of C. frutescens L., the technology of doubled haploids through microspore culture was used. As a result, doubled haploid plants meeting the planned model (compact low habit, purple fruit colouring in technical ripeness and red in biological ripeness) were obtained. The resulting hybrid combined all the necessary economic features: high ornamentality, compactness, bouquet arrangement of fruits, high taste and aroma. Thus, the use of remote interspecific hybridization in the breeding process in combination with biotechnological approaches can accelerate the production of new forms of hot peppers that meet the demands of the market.


2020 ◽  
Vol 71 (10) ◽  
pp. 131-136
Author(s):  
Tina Oana Cristea ◽  
Gabriel-Alin Iosob ◽  
Creola Brezeanu ◽  
Petre Marian Brezeanu

The dimension of the bud is a key factor for the orientation of microspore culture and the success of obtaining double haploid plants as it is a strong correlation between bud size and the developmental stages of microspores, and it is specific for each plant species and genotype. Our study was focused to determine the correlation between morphological characteristics, namely floral bud size and specific microspore developmental stages in order to determine the proper size, suitable for a successful protocol of obtaining double haploid plants in Brassica oleracea var. italica. Thus, we tested four bud sizes ranging from 2.0 to 4.0 mm measured from the base to the tip of the bud. After the statistical analysis of the results it can be emphasized that the best results were obtained in the case of using as a source of microspores the flower buds with the size between 3.1-3.5 mm. At this dimension, the share of microspores in the uninucleate stage, predominantly in the late uninucleate stage, is 90%, thus ensuring a homogeneous population of microspores in the optimum stage of development. Their evolution is predominantly embryogenic, the percentage of microspores following the gametophytic pathway is reduced, by only 9.12%.


Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
OO Ndu ◽  
CN Aguwa ◽  
CS Nworu ◽  
CC Nwanma ◽  
MI Ukpoma
Keyword(s):  

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