Technology for breeding male cytosterile line of hot pepper or pimento and preparing its seeds

A technology of cytoplasmic male sterility and male sterile line, which is applied in the fields of botany equipment and methods, application, plant gene improvement, etc., and can solve the complicated procedures of artificial emasculation and pollination, time-consuming purity identification, and difficulty in guaranteeing purity, etc. problems, to achieve the effect of rapid promotion, time saving and price reduction

Inactive Publication Date: 2003-02-19
江苏省农业科学院蔬菜研究所
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Problems solved by technology

[0002] Spicy (sweet) pepper (Capscicum frutescens L.) has obvious heterosis, but artificial detasseling seed production procedures are complicated and labor-intensive, and the purity of the first generation of hybrids is difficult to guarantee, and the purity identification is also time-consuming

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  • Technology for breeding male cytosterile line of hot pepper or pimento and preparing its seeds

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Embodiment approach

[0023] The croissant pepper No. 21 (fruit length is 11.79 cm, fruit shoulder width is 2.3 cm, flesh thickness is 2.09 mm, single fruit weight is 13.27 g, has a spicy taste) is used as the reincarnation male parent, and the cytoplasmic male parent of the lantern-shaped sweet pepper is used. The breeding line LANES is the sterile source. As the female parent, after 6 generations of hybridization and backcrossing, through identification and selection, a new capsicum capsicum cytoplasmic male sterile line 21A (fruit length 11.77 cm, shoulder width 2.56 cm, flesh thickness 1.91 mm, single fruit weight 13.2 grams, with a spicy taste). See Table 1 for the breeding process and fruit traits of the CMS line 21A of croissant pepper.

[0024] Table 1 Breeding process and fruit traits of 21A capsicum capsicum cytoplasmic male sterile line Parents and transgenic single fruit heavy fruit long fruit shoulder width fruit shape index flesh thick single fruit taste generation (g) (cm) (cm) verti...

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Abstract

A process for selectively breeding the male cytosterile line of hot pepper or pimento features that the pimento's male cytosterile line LANES as female parent and hot pepper No21 or pimento N.8 used alternatively as male parent are hybridized by 6-8 generations to obtain the male dcytosterile line 21 A or 8A for hot pepper or pimento. Its advantages are low cost decreased by 50% and high purity up to 100%.

Description

Technical field: [0001] The invention belongs to the field of utilization of heterosis, and in particular the invention relates to the breeding of a cytoplasmic male sterile line of hot pepper and sweet pepper and the utilization of the breeding of a cytoplasmic male sterile line of pepper (sweet) pepper to breed a first-generation hybrid Methods. technical background: [0002] Spicy (sweet) pepper (Capscicum frutescens L.) has obvious heterosis, but the procedures for seed production by artificial emasculation are complicated and labor-intensive, and the purity of the first generation of hybrids is difficult to guarantee, and the purity identification is also time-consuming. Breeding and using the male sterile lines to produce the first-generation hybrid seeds can simplify the seed production procedures, save labor and cost, and ensure the seed purity of the first-generation hybrids. Invention content: [0003] The purpose of the present invention is to propose a kind of...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 王述彬刘金兵赵华仑孙洁波丁犁平
Owner 江苏省农业科学院蔬菜研究所
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