Method based on genome size and for improving cruciferous crop characters
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A cruciferous crop, genome technology, applied in the direction of plant genetic improvement, botanical equipment and methods, applications, etc.
Pending Publication Date: 2020-01-17
CHENGDU ACAD OF AGRI & FORESTRY SCI
View PDF1 Cites 3 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a method for improving the traits of cruciferous crops based on the size of the genome, so as to obtain excellent parents of cruciferous crops, and to solve the problem of strong dominant combination in the process of cruciferous crop heterosis utilization For the selection and improvement of parents, there is no need for continuous self-crossing of parents for multiple generations, let alone continuous backcrossing of stable parents for multiple generations, so as to select and breed parents with higher and better traits.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0058] see figure 1 with image 3 This example provides a method for improving the traits of cabbage based on the size of the genome. The purpose of the improvement is to quickly obtain several homozygous varieties of cabbage with outstanding comprehensive traits such as strong disease resistance, high yield, and storage and transportation resistance, or a single trait as parents. Further improve the utilization rate of cabbage heterosis. Through the collection, identification and genome size determination of germplasm resources of cabbage, a homozygous line of cabbage with disease resistance (black rot resistance and soft rot resistance) and high yield was selected with a relative difference percentage T of genome size T of 8%. F 1 generation seeds.
[0059] Choose the right sowing time to sow F 1 Generation, make F 1 The generation meets the flowering stage of the double haploid induced line of rapeseed, and the F 1 After artificial emasculation, the rapeseed double ha...
Embodiment 2
[0079] see Image 6 , this example provides a method for improving the traits of Brassica napus based on the size of the genome. The purpose of the improvement is to quickly obtain a number of homozygous Brassica napus varieties with outstanding comprehensive or single traits such as disease resistance, high yield, lodging resistance, and high oil content. Further improve the utilization rate of heterosis in Brassica napus. Through the collection, identification and genome size determination of the germplasm resources of Brassica napus, the clubroot-resistant, high-yield multi-year self-bred homozygous line ZH102 and the lodging-resistant, oily A homozygous line 3581 (oil content > 56%) with a high amount of self-breeding for many years was crossed after emasculation to obtain F 1 generation seeds.
[0080] Choose the right sowing time to sow F 1 Generation, make F 1 The generation meets the flowering stage of the double haploid induced line of rapeseed, and the F 1 After...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a method based on genome size and for improving cruciferous crop characters. The method includes: S1, collecting germplasm resources of cruciferous crops, and measuring genomesize E; S2, subjecting genome size relative difference percent T to reciprocal crossing of 2-20% cruciferous crops to obtain F1 generation; S3, planting the F1 generation, and performing artificial castration; S4, using a rape dihaploid inducer to induce the F1 generation to obtain a Y1F2 generation; S5, planting the Y1F2 generation, selecting orderly single plants with normal fertility and ploidyfor selfing to obtain a Y1F3 generation; S6, planting the Y1F3 generation, identifying its stability, and analyzing normal distribution condition of genome size Eyx of the Y1F3 generation; S7, investigating target character of the Y1F3 generation; S8, selecting a strain with the target character and Eyx positioned within 3-5% of two ends of normal distribution as an improved breeding new material. The method has the advantages of short improving period, high efficiency and low cost.
Description
technical field [0001] The invention belongs to the technical field of crop breeding and relates to a method for improving the traits of cruciferous crops according to the genome size. Background technique [0002] Cruciferous crops include Chinese cabbage, pak choy, Chinese cabbage, kale, seaweed stalk, wutah, turnip, floret, green cabbage, cabbage type rape, head cabbage (cabbage), collard greens, bush cabbage, Brussels sprouts Cabbage, kohlrabi, kale, cauliflower (cauliflower), broccoli, kohlrabi, Brassica napus, mustard greens, mustard mustard, mustard rape, radish and other crops are common ingredients on the table because of their high dietary Features such as fiber, low calorie, and rich nutrients provide people with high-quality nutrition. At the same time, rapeseed among cruciferous crops is also a major oil crop, and its seeds are an important source of edible oil, providing people with rich polyunsaturated fatty acids. It can be seen that cruciferous crops have ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more