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A method for obtaining intergeneric hybrids of Forsythia and Hexaphyllum

A technology of Forsythia and hybrids, applied in botany equipment and methods, plant gene improvement, application, etc., can solve the problems of concentrated flowering and single flower color of Forsythia plants, and achieve the effect of enriching genetic information

Active Publication Date: 2016-02-10
BEIJING FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the present situation that Forsythia plants have single flower color and concentrated flowering period, the purpose of the present invention is to provide a method for obtaining intergeneric hybrids of Forsythia and Hexaphyllum, so as to improve the ornamental characteristics of Forsythia plants

Method used

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  • A method for obtaining intergeneric hybrids of Forsythia and Hexaphyllum
  • A method for obtaining intergeneric hybrids of Forsythia and Hexaphyllum
  • A method for obtaining intergeneric hybrids of Forsythia and Hexaphyllum

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Embodiment 1

[0062] 1. Obtaining hybrid offspring materials between Forsythia and Hexaphyllum

[0063] 1.1 Material selection

[0064] Select Forsythia genus Forsythia and Forsythia samara in the closely related genus Hexaconia.

[0065] 1.2 Hybridization method and hybrid acquisition

[0066] In the spring of 2011, in the Xiaotangshan Nursery of the National Flower Engineering Center, the long-styled Forsythia was artificially detasseled and bagged for isolation, and the fresh pollen of the short-styled Forsythia was collected and pollinated at 11-12 am, once a day , pollinated 3 times; after hybridization, after the stigma wilted, replace it with a mesh bag. The seeds are collected after natural maturation, dried in the shade, and stored at room temperature.

[0067] Seeds were soaked in 100 mg / L gibberellin aqueous solution for 6 hours, then sowed in plug trays filled with peat, covered with film, and intergeneric hybrid progeny plants were obtained after germination.

[0068] 2. Iden...

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Abstract

The invention discloses a method for obtaining genus hybrid of forsythia and abeliophyllum. The method comprises the following specific steps: (1) carrying out generic artificial hybridization by taking fructus forsythiae of the forsythia as a female parent and taking abeliophyllum distichum of the abeliophyllum as a male parent, and gathering the seeds obtained after the hybridization; and (2) planting the seeds to obtain filial generation materials, carrying out morphological observation statistics by referring to the male parent and the female parent, carrying out hybrid identification by using an AFLP (Amplified Fragment Length Polymorphism) molecular marker and selecting the genus hybrid of the forsythia and the abeliophyllum. According to the method, distant hybridization is carried out on fructus forsythiae of the forsythia and abeliophyllum distichum of the abeliophyllum, so that the generic gene exchange between the forsythia and the abeliophyllum is realized and a generic hybridization new germplasm is obtained. Based on the method, the genetic information of the forsythia plants can be enriched, the new variety cultivation of fructus forsythiae via generic hybridization is possible and the research of affinis genus genetic relationship can be also carried out.

Description

technical field [0001] The invention belongs to the field of plant breeding, and in particular relates to a method for obtaining a hybrid between the genus Forsythia and the genus Hexaphyllum. Background technique [0002] The plants of the genus Forsythia (Forsythia) are all deciduous shrubs with flowers in early spring, the first leaves or the same leaves open, yellow flowers, bell-shaped, style II, and capsules (Flora of China, 1992). [0003] In the 19th century, Western countries introduced Forsythia plants from the East, carried out extensive selective breeding, and bred a number of varieties. Due to their strong stress resistance and dense flowers in early spring, these varieties were widely cultivated and used in temperate regions (Rosatietal., 2007 ). Germany The natural hybrid Forsythia × intermedia was found in the botanical garden, which became the main parent of modern forsythia varieties, and a large number of new varieties appeared (Wyman, 1961). Forsythia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12Q1/68A01H1/02A01H1/04
Inventor 潘会堂申建双张启翔石超程堂仁王佳孙明
Owner BEIJING FORESTRY UNIVERSITY
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