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Selective breeding method of anti-wilt eggplant cytoplasmic male sterility restoring line

A technology for cytoplasmic male sterility and Fusarium wilt resistance, which is applied in the fields of botany equipment and methods, applications, plant genetic improvement, etc., can solve the problems of resistance to artificial emasculation and Fusarium wilt, and achieve strong gloss, uniform coloring, Good fruit setting effect

Inactive Publication Date: 2015-08-05
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of artificial detasseling and the weak resistance of existing varieties to Fusarium wilt in the production of eggplant hybrid seeds, and provide a breeding method for eggplant cytoplasmic male sterile restorer lines

Method used

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  • Selective breeding method of anti-wilt eggplant cytoplasmic male sterility restoring line
  • Selective breeding method of anti-wilt eggplant cytoplasmic male sterility restoring line
  • Selective breeding method of anti-wilt eggplant cytoplasmic male sterility restoring line

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Embodiment Construction

[0024] 1. Plant material and source

[0025] (African Red Eggplant×Aesculus Escargot) F 1 : Interspecies hybrid offspring.

[0026] African Red Tomato S. aethiopicum group Aculeatum (Centre for Genetic Resource, the Netherlands) is a close relative of eggplant distributed in Africa, and is the donor of the cytoplasmic male sterility gene and fusarium wilt resistance gene in the present invention; the flower is white, the fruit is oblate, and the tender fruit has light green peel , the peel of the old ripe fruit is orange-red, with an average longitudinal diameter of 4 cm and a transverse diameter of 5 cm.

[0027] 'Aesculus' (Chinese National Vegetable Germplasm Resources Medium-term Bank) is a Beijing local variety; the flower is purple, the fruit is flat and round, and the commercial fruit peel is purple, with an average longitudinal diameter of 10 cm and a transverse diameter of 15 cm.

[0028] 'Su Qi 4' is a purple long eggplant variety bred by Jiangsu Academy of A...

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Abstract

The invention relates to a selective breeding method of an anti-wilt eggplant cytoplasmic male sterility restoring line and belongs to the technical field of plant breeding. In the selective breeding method, the F1 generation (which is fertile and is wilt-resistant) obtained through interspecific hybridization between Solanum aethiopicum group Aculeatum and Solanum melongena L. as a female parent while long purple eggplants 'Suqi #4' is employed as a male parent for carrying out hybridization, and then anti-wilt fertile plants are selected from the filial generations. With the 'Suqi #4' as the male parent to carry out continuous backcross for four generations, the anti-wilt fertile plants are selected and are subjected to anther culture, and finally through observation and identification on fertility, resistance on wilt and horticultural characters, the male sterility restoring line 'ER1' is selectively bred. The male sterility restoring line 'ER1' is 10-11 in the node of the first flower, is black-purple in the color of pericarp, is rod-like in the shape of fruits, is 35 cm in average longitudinal diameter of the fruits and 4.5 cm in average transversal diameter of the fruits, has the functions of resisting wilt and can be used as a male parent for selectively breeding eggplant hybridization varieties.

Description

technical field [0001] The invention relates to a method for breeding a restorer line of eggplant cytoplasmic male sterility resistant to Fusarium wilt, belonging to the technical field of plant breeding, and is specially used for the selection of a restorer line of eggplant cytoplasmic male sterile resistant to Fusarium wilt. Background technique [0002] eggplant( Solanum melongena ) is an important vegetable crop in my country. Fusarium wilt of eggplant is an important soil-borne disease caused by Fusarium oxysporum. In recent years, the occurrence and damage of this disease have become more and more serious, and it has become an important disease of eggplant protected cultivation. The demand for eggplant varieties resistant to Fusarium wilt is very urgent in production. [0003] Cytoplasmic male sterility (CMS) exists widely in higher plants and plays an important role in the utilization of plant heterosis. In the seed production of hybrid varieties of self-pollin...

Claims

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Application Information

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IPC IPC(8): A01H1/04
Inventor 周晓慧刘军鲍生有庄勇
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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