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85773

ANTHER CULTURE AND PLANT REGENERATION IN CITRUS (Citrus volkameriana ).

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Last updated: 22 Jan 2023

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Abstract

Development of an efficient and cost-effective doubled haploid production system in Citrus volkameriana is the prerequisite for the application of doubled haploid technology in a practical breeding program. An improvement of the protocol for haploid induction through anther culture of Citrus volkameriana was achieved following the evaluation of a number of the factors affecting androgenesis. Two types of media were tested for response of anther culture. In induction cultures, N6 Chu (1978) basal medium was more effective than Murashige and Skoog (1962). The influence of 2,4-dichlorophenoxyacetic acid (2,4-D) and benzyladenine (BA) and three temperature pre-treatments (4oC, 25oC, 32oC) on the floral buds with respect to anther culture of C. volkameriana . As well as, the effect of AgNO3 concentration on Volkamer" lemon embryogenesis was investigated. The highest percentages of anthers producing embryoids (47.50) was produced on N6 medium at the concentration of 2.0 mg/l 2,4-D and 0.5 mg/l BA together. Pre-treatment of temperatures at 4oC and 25oC were more favorable for embryo production than 32oC. Silver nitrate concentrations had a strong influence on embryo yields where a 2.0 mg /l significantly gave a higher percentages of anthers (65.00%)  producing embryoids compared with 1.0 mg /l or 0.0 mg/l (55.00, 45.83%, respectively). Regeneration of androgenic haploid plantlets from C. volkameriana is reported in this study. As embryogenesis proceeded, the normal pattern of development was observed, including heart-shape, torpedo and cotyledonar embryos.

DOI

10.21608/jpp.2011.85773

Authors

First Name

H.

Last Name

Aboshama

MiddleName

M. S.

Affiliation

Minufiya University, Genetic Engineering and Biotechnology Institute, Plant Biotechnology Department,

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Volume

2

Article Issue

12

Related Issue

12912

Issue Date

2011-12-01

Receive Date

2020-04-26

Publish Date

2011-12-01

Page Start

1,717

Page End

1,729

Print ISSN

2090-3669

Online ISSN

2090-374X

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https://jpp.journals.ekb.eg/article_85773.html

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https://jpp.journals.ekb.eg/service?article_code=85773

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Original Article

Type Code

887

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Journal

Publication Title

Journal of Plant Production

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https://jpp.journals.ekb.eg/

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Article

Created At

22 Jan 2023