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Breeding method for red endosperm rice

A red and endosperm technology, applied in the fields of botanical equipment and methods, applications, plant genetic improvement, etc., can solve the problems of difficult commercialization of transgenic black endosperm rice

Active Publication Date: 2018-12-21
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, under the current background, the commercialization of the genetically modified black endosperm rice "Amethyst rice" is very difficult.

Method used

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  • Breeding method for red endosperm rice
  • Breeding method for red endosperm rice
  • Breeding method for red endosperm rice

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Experimental program
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Embodiment Construction

[0039] 1. Breeding materials:

[0040] (1) Parent A is ZDR-hal-01. ZDR-hal-01 is a special-purpose rice selected and bred by Zhejiang University, which can be purchased from the Institute of Nuclear Agricultural Sciences, Zhejiang University. The fat content of the rice is as high as 2.3%, and the fat mainly exists in the form of starch-fat complex, the rice seed coat is normal light yellow, and the endosperm is normal white.

[0041] (2) Parent B is Zhejiang University Hongzhen. Zhejiang University Hongzhen is a special red rice rice bred by Zhejiang University Nuclear Agricultural Science Research Institute, which can be purchased from the institute. The rice seed coat is red, the endosperm is normal white, the fat content is low, and the fat mainly exists in the form of non-starch-fat complex.

[0042] 2. Determination of fat content

[0043]The fat content is determined according to the national standard - Determination of fat in food (GB 5009.6-2016); the starch-fat c...

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Abstract

The invention discloses a breeding method for red endosperm rice. The method comprises the following steps: using rice containing starch-fat complexes as a parent A, using rice with a red seed coat asa parent B, and using the parent B as a female parent, hybridizing with the parent A, to obtain a F1-generation; backcrossing with the parent A, to obtain a BC1F1-generation; selfing, to obtain BC1F2-generation seeds, selecting and remaining grains with the red seed coat, constructing a double haploid; and successively planting DH1-DH3 generations and selfing, using a pale yellow seed coat, red endosperm, crude fat content greater than or equal to 2% and more than 70% of the starch-fat complexes as screening indexes, to harvest the red endosperm rice. The rice obtained by breeding has the advantages of pale yellow seed coat, red endosperm, high starch-fat complex content and high anthocyanin content, and anthocyanin is effectively expressed in a part of the edible endosperm, a natural color product, such as red rice noodles, can be developed without using a food colorant, and the rice is particularly in comply with general requirements of people to natural and healthy food.

Description

technical field [0001] The invention relates to the technical field of rice breeding, in particular to a method for breeding red endosperm rice. Background technique [0002] Anthocyanin, also known as anthocyanin, is a natural pigment widely used in food coloring, dyes, medicine, cosmetics, etc. Anthocyanins are phytonutrients belonging to bioflavonoids. They not only have strong free radical scavenging ability and anti-oxidation ability, but also have active molecules such as reducing enzyme activity and anti-mutation. They have important health care functions for human health. [0003] Colored special rice, including red rice, black rice, purple rice, etc., is rich in anthocyanins and is the main material of traditional food supplements in my country. There are researches devoted to the breeding of colored special rice. [0004] The invention patent application with the application publication number CN102524052A discloses a method for breeding rice with the function of ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 吴殿星龚婉欣张宁王寅沈易
Owner ZHEJIANG UNIV
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