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A method for breeding cytoplasmic male sterile lines of eggplant resistant to Verticillium wilt and Fusarium wilt

A technology for cytoplasmic male sterility and Verticillium wilt resistance, applied in the fields of botany equipment and methods, application, plant gene improvement, etc., can solve problems such as artificial castration resistance, and achieve the effect of excellent horticultural traits

Active Publication Date: 2016-03-02
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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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 Verticillium wilt and Fusarium wilt in the production of eggplant hybrid seeds, and provide a method for breeding eggplant cytoplasmic male sterile lines

Method used

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  • A method for breeding cytoplasmic male sterile lines of eggplant resistant to Verticillium wilt and Fusarium wilt
  • A method for breeding cytoplasmic male sterile lines of eggplant resistant to Verticillium wilt and Fusarium wilt
  • A method for breeding cytoplasmic male sterile lines of eggplant resistant to Verticillium wilt and Fusarium wilt

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Embodiment Construction

[0024] 1. Plant material and source

[0025] (African Red Eggplant×Aesculus) F 2 Population: Fertility segregation population of interspecific crosses.

[0026] African red eggplant S.aethiopicum groupAculeatum (CentreforGeneticResource, theNetherlands provides externally) is the eggplant relative species distributed in Africa, is the donor of cytoplasmic male sterility gene and Fusarium wilt resistance gene in the present invention; flower white, fruit oblate, The skin of tender fruit is light green, and the peel of mature fruit is orange-red, with an average longitudinal diameter of 4 cm and a transverse diameter of 5 cm.

[0027] "Aescin" (provided by the China National Vegetable Germplasm Resources Medium-term Bank) is a local variety in Beijing; 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] (Wild Eggplant (S.linnaeanum)×Suzhou Beef Ho...

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Abstract

The invention relates to a selective breeding method of a cytoplasmic male sterility line of an eggplant resisting to greensickness and blight, and belongs to the technical field of plant breeding. The method is characterized in that blight-resisting male sterile plants of filial generations between African red eggplant (Solanum aethiopicum group Aculeatum) and 'Seven-leaf Eggplants' are used as female parents; a single greensickness-resisting plant of filial generations between wild eggplants (S. linnaeanum) and 'Suzhou Ox Horns' is used as a male parent; the female parents and the male parent are hybridized; the male sterile plants resisting to the greensickness and the blight are selected from the filial generations; five generations are continuously backcrossed by taking the 'Suzhou Ox Horns' as the male parents; the male sterility line 'SaetC1' is selectively bred by observing and identifying fertility, resistance to the greensickness, resistance to the blight, and horticultural characters; the male sterility line 'SaetC1' belongs to a no-pollen type sterile line and has the advantages of 100% sterile plant rate, early maturation, 10-11 early flowering nodes, bar-shaped fruits with 25-30cm longitudinal diameter and transverse diameter of 5.0-6.0cm of, black purple commodity pericarp, resistance to the greensickness and the blight, and use as the female parents of a selectively-bred eggplant hybrid variety.

Description

1. Technical field [0001] The invention relates to a breeding method for eggplant cytoplasmic male sterile lines resistant to Verticillium wilt and Fusarium wilt, which belongs to the technical field of plant breeding and is specially used for the breeding of eggplant cytoplasmic male sterile lines resistant to Verticillium wilt and Fusarium wilt. 2. Background technology [0002] Eggplant (Solanum melongena) is an important vegetable crop in my country. Verticillium wilt and Fusarium wilt of eggplant are two important soil-borne diseases caused by Verticillium dahliae and Fusarium oxysporum, respectively. In recent years, the occurrence and damage of these two diseases have become more and more serious, and they have become important diseases of eggplant protected cultivation. There is an urgent demand for eggplant varieties resistant to Verticillium wilt and Fusarium wilt in production. [0003] Cytoplasmic male sterility (cytoplasmic male sterility, CMS) widely exists in...

Claims

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Application Information

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IPC IPC(8): A01H1/04A01H1/02
Inventor 庄勇周晓慧刘军鲍生有
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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