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Method for breeding chromatic potato variety with high pigment content

A technology for colored potatoes and pigment content, which is applied in the directions of botanical equipment and methods, applications, and plant genetic improvement, can solve problems such as new potato varieties that have not yet been seen, and achieve the effect of improving selection efficiency.

Inactive Publication Date: 2018-04-20
云南省农业科学院经济作物研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there has been no report on the application of this technology to the simultaneous cultivation of new potato varieties such as purple and blue

Method used

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  • Method for breeding chromatic potato variety with high pigment content
  • Method for breeding chromatic potato variety with high pigment content
  • Method for breeding chromatic potato variety with high pigment content

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Embodiment Construction

[0025] The following examples are used to further illustrate the present invention, and each example is a conventional method without special instructions.

[0026] (1) Collection of test materials and evaluation of pigment content

[0027] Sources with purple or red flesh are collected from around the world, including colored potato varieties and lines from the International Potato Center, the United States, and Canada.

[0028] The collected colored potato resources were planted in the experimental field, cross-sectioned with a knife when harvested, and the distribution of anthocyanin pigments in the tubers was visually evaluated, and the colored potato germplasm with all purple flesh and all red flesh were selected as hybrid parents. All purple meat x all purple meat, all red meat x all red meat, or all purple meat x all red meat were used for hybridization.

[0029] (2) Genetic relationship analysis

[0030] Screen the polymorphic SSR primers (see attached table) to anal...

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Abstract

The invention discloses a method for breeding a chromatic potato variety with high pigment content. The method comprises the following steps: determining the pigment content; analyzing the genetic relationship; carrying out mixed pollination; screening cross generations; carrying out field screening and pigment evaluation; carrying out variety comparison testing and regional testing on screened later generations which are high in pigment content, and breeding a new chromatic potato variety with high pigment content and good agronomic traits. According to the method disclosed by the invention,the proportion of strains, which are high in the pigment content, in the cross generations can be remarkably increased, and the selecting efficiency of breeding a new variety with high pigment contentcan be increased; the genetic relationship of cross parents of the chromatic potatoes can be analyzed by utilizing molecular markers, materials having a distant genetic relationship can be selected for pairing and hybridizing, and the agronomic traits such as the pigment content, the quality and the yield of the cross generations are increased by utilizing heterosis; the mixed pollination is adopted, the hereditary basis is expanded through a multiple male parent pollination strategy, and the variation types of the cross generations are added while the cross fertile rate is increased.

Description

technical field [0001] The invention belongs to the technical field of crop breeding, in particular to a method for breeding colored potato varieties with high pigment content. Background technique [0002] The potato is one of the most widely grown high-carbohydrate crops in the world and is also considered an important food source of antioxidant activity in people's diets. Potatoes contain a variety of antioxidant active substances such as polyphenols, carotenoids, flavonoids and vitamin C. The high-pigment-content colored potato varieties refer to potato varieties with high total anthocyanin content, and usually the total anthocyanin content is above 20mg / 100g for high pigment content. In addition to other antioxidant active substances, colored potatoes have increased anthocyanin pigments, and the antioxidant activity of potato varieties with colored potato flesh has increased by 2-3 times compared with white-meat and yellow-meat potato varieties. Common potatoes have a...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 李先平隋启君包丽仙潘哲超尹自友王颖蒋伟徐宁生李燕山白建明杨琼芬姚春光普红梅卢丽丽张磊梁淑敏刘凌云
Owner 云南省农业科学院经济作物研究所
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