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Preparation method of chromosome suitable for karyotype analysis of rubus plants

A technology of karyotype analysis and Rubus genus, which is applied in the field of cytogenetics and cell biology, can solve the problem that the effect of chromosome samples is not as good as the technical process of the method, the method of enzymatic hydrolysis to remove the wall and low osmosis is cumbersome, and the cost of making chromosome karyotypes is increased, etc. problem, to achieve the effect of high specimen quality, easy coloring, and low production cost

Inactive Publication Date: 2012-06-13
SICHUAN AGRI UNIV
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Problems solved by technology

[0058] (2) The method of enzymatic hydrolysis to remove the wall and low osmosis method is loaded down with trivial details, and the technical requirement is higher, and reagent such as purchasing the cellulase and pectinase that needs a large amount is expensive at the same time, has improved the cost of making chromosomal karyotype greatly, and its The effect of Rubus plant chromosome specimens is not as good as the technical process of the method protected by this application. Figure 4 As shown, the materials used are R. parvifolius (2n=4x=28, D), yellow raspberry R.xanthocarpus (2n=2x=14, E), European red raspberry R.idaeus (2n=2x=14, F) and R. komarovii (2n=4x=28, G), - is 5um (Chen Ruiyang et al., 1993; Li Xiulan et al., 1993; Lin Shenghua, 1994)

Method used

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  • Preparation method of chromosome suitable for karyotype analysis of rubus plants
  • Preparation method of chromosome suitable for karyotype analysis of rubus plants
  • Preparation method of chromosome suitable for karyotype analysis of rubus plants

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Embodiment Construction

[0089] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0090] refer to figure 2 , a kind of chromosome preparation method suitable for Rubus plant karyotype analysis, its specific steps are:

[0091] 1) Material cultivation

[0092] Obtain adventitious roots through stem cutting propagation, take young shoots or hard branches with 3-5 nodes, cut them in a plastic greenhouse with vermiculite as the substrate, and carry out routine management. When the adventitious roots grow to 1-2cm, after cutting Take materials in 2-4 weeks, and take the growing root tips of strong cuttings;

[0093] 2) Pretreatment

[0094] Use 0.002mol L -1 8-Hydroxyquinoline was pretreated at 0-4°C for 24 hours;

[0095] 3) fixed

[0096] The root tip treated in step 2) was placed in Carnoy's fixative solution I (absolute ethanol: acetic acid = 3: 1, v / v), and fixed at 0-4 ° C for 24 h;

[0097] 4) save

[0...

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Abstract

The invention discloses a preparation method of chromosome suitable for karyotype analysis of rubus plants. The chromosome preparation method comprises the following specific steps of: material culturing; pretreatment; fixing; storage; dissolution; dyeing, smearing and tabletting; and microscopic examination and observation. The preparation method disclosed by the invention has the advantages of low cost, simple, convenient and speedy operation process and capability of obtaining an ideal chromosome specimen for karyotype analysis of the rubus plants.

Description

technical field [0001] The invention belongs to the field of cytogenetics and cell biology, and relates to a chromosome preparation method, in particular to a chromosome preparation method suitable for karyotype analysis of Rubus plants. Background technique [0002] Chromosome is the basis of genetic material in organisms and the main carrier of genetic material. Chromosome size, number, and shape (ie, karyotype characteristics) are relatively stable during the growth and generation of plants, and are not easily affected by changes in environmental conditions. They can largely reflect the characteristics of species and their genetic differences. Therefore, the karyotype characteristics and even the number of chromosomes of different species can provide cytological basis for the classification, phylogeny and genetic relationship identification of this genus. When conducting comparative studies on the number, shape, and karyotype of chromosomes in a specific group of cells, ...

Claims

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Application Information

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IPC IPC(8): C12Q1/24
Inventor 王小蓉汤浩茹陈涛南红王燕刘泽静罗娅
Owner SICHUAN AGRI UNIV
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