Method for breeding novel variety of Brassica oleracea by using two DH (dihaploid) lines

A new variety, the technology of cabbage, which is applied in the field of crop genetics and breeding, can solve the problems of strong growth potential, high reproductive seed yield, and insufficient expression of heterosis

Inactive Publication Date: 2017-02-22
NORTHWEST A & F UNIV
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at many problems and defects such as easy degeneration of inbred lines, poor hybrid uniformity, and insufficient performance of heterosis in the conventional technology of using two inbred lines to prepare the first generation of hybrid varieties, the purpose of the present invention is to provide a method using two DH lines A method for breeding a new cabbage variety. The DH line of the cabbage variety bred by this method has a small number of self-generations per plant, strong growth potential, high seed y...

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
  • Method for breeding novel variety of Brassica oleracea by using two DH (dihaploid) lines
  • Method for breeding novel variety of Brassica oleracea by using two DH (dihaploid) lines
  • Method for breeding novel variety of Brassica oleracea by using two DH (dihaploid) lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Breeding and Character Performance of Two DH Line Parents of Qingan 1562 First Hybrid Variety

[0029] 1) Breeding of female germplasm material DHCMS08-5-3-6-9

[0030] (1) Breeding of DH08-5-3-6-9

[0031] figure 1 The breeding map of the maintainer line of the female parent DHCMS08-5-3-6-9 cytoplasmic male sterile line was given. The female parent maintainer line DH08-5-3-6-9 was developed by the School of Horticulture of West Agriculture and Forestry University in 2007 Two selected cabbage inbred lines MP01-2566×Y03-3621 were prepared as F1, and the F1 microspores were cultured ( image 3 DH08-5-3-6-9DH strain) and an excellent DH line ( Figure 4 DH line of DH08-5-3-6-9), agronomic traits are highly uniform, disease resistance and high quality (Table 1), high combining ability.

[0032] (2) DHCMS08-5-3-6-9 transfer

[0033] figure 1 The breeding map of the female parent DHCMS08-5-3-6-9 cytoplasmic male sterile line was given. The DHCMS08-5-3-6-9 cytoplas...

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

No PUM Login to view more

Abstract

The invention discloses a method for breeding novel variety of Brassica oleracea by using two DH (dihaploid) lines, comprising: hybridizing a cytoplasmic male-sterile line DHCMS08-5-3-6-9 trans-bred with a Brassica oleracea DH line as a female parent and the Brassica oleracea DH line DH05X-1-5-9-8 line as a male parent to prepare DHCMS08-5-5-6-9*DH05X-1-5-9-8 hybrid first-generation combination, named as Qingan 1562. The method of the invention is a method to breed a mid-early maturity novel variety of Brassica oleracea by using two DH lines, a novel hybrid first-generation variety of Brassica oleracea is bred through DH liens with genotype purity of 100% created by culturing isolated microspores of Brassica oleracea, the novel hybrid first-generation variety of Brassica oleracea has highly uniform economic traits and completely exhibited target traits, and the breeding of disease-resistant high-quality high-yield variety breeding targets is achieved.

Description

technical field [0001] The invention belongs to the discipline of crop genetics and breeding in agricultural science and technology, and specifically relates to a method for breeding a new cabbage variety by using two DH lines. Background technique [0002] Breeding of new varieties of cabbage is one of the main research projects for the selection and breeding of vegetable crops established by the state for a long time. The heterosis of cabbage is obvious, and the new varieties cultivated are all first-generation hybrids; the selection of excellent inbred lines, cytoplasmic male sterile lines and the utilization of heterosis have become one of the effective ways to breed new varieties with multiple objectives. The collocation and planting of new varieties of cabbage plays a leading role in the adjustment of agricultural industrial structure and the increase of farmers' income. Cabbage varieties are listed in multiple seasons and crops, which play a key role in alleviating...

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
no application Login to view more
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 张恩慧程永安杨安平许忠民刘争张孟利李思蓓
Owner NORTHWEST A & F UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap