CN101240336A - Molecule mark interlocked with rice stripe disease resisting gene - Google Patents
Molecule mark interlocked with rice stripe disease resisting gene Download PDFInfo
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- CN101240336A CN101240336A CNA2007101909276A CN200710190927A CN101240336A CN 101240336 A CN101240336 A CN 101240336A CN A2007101909276 A CNA2007101909276 A CN A2007101909276A CN 200710190927 A CN200710190927 A CN 200710190927A CN 101240336 A CN101240336 A CN 101240336A
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Abstract
The present invention discloses a molecular marker linked with rice stripe resistance disease gene. The invention is based on the linkage segregation law, uses the F2 Wuyujing No. 3/Zhendao 88 population as the mapping population, and acquires the SSR maker RM229 linked with the rice stripe disease resistance gene by the linkage analysis between the disease resistance identification result and the SSR maker data. The invention is applied to marker assisted selection of rice stripe disease resistance variety, capable of overcoming the poor stability and reparability of rice stripe disease resistance identification, as well as time-consuming, labor-intensive and technology-requiring drawbacks in conventional breeding, the result can simplify the selection method and improve breeding efficiency, thus to quicken the breeding process of the resistance variety.
Description
Technical field
The present invention relates to a kind of and the linked molecule marker of stripe disease disease-resistant gene, can be applicable to molecular mark, belong to paddy disease-resistant breeding and biology field.
Background technology
The stripe disease that rice stripe virus (RSV) causes found that all there is generation the back in Korea, Ukraine and China in the Japanese Northeast early than 1897.China from 1962 since this virus is found in the Jiangsu and Zhejiang Provinces, take place at 16 provinces in the whole nation, the THE LOWER YANGTZE VALLEY rice district based on Jiangsu Province still is in the popular phase at present.According to incompletely statistics, only Jiangsu Province's stripe disease generation area in 2004 just reaches 2,700 ten thousand mu, accounts for 79% of Jiangsu Province's rice area, and the expert estimates that stripe disease will be in after 2006 5 years and lay particular stress on occurrence tendency that prevention work is very urgent.
External experience of prevention and treatment shows that effective means is to select disease-resistant variety for use at this disease is most economical.Yet the rice varieties that uses in the lesion production at present is mostly based on susceptible material, and it is imperative that varietal resistance improvement and large-area kind substitute.Former study stripe disease resistance has single-gene and two pairs of hereditary patterns such as Gene Handling, and wherein to derive from the 11 chromosomal Stv-b that is positioned at of rice variety Modan
iThe resistance performance of single-gene control is the strongest, is that disease-resistant gene importing target is the breed breeding strategy of current first-selection with this site.The present indoor appraising method set up the sixties of investigator's over-borrowing of stripe disease mirror Japan, but this method and technology threshold height, the characteristics that waste time and energy make it be unsuitable for the resistance primary dcreening operation of lot of materials in the breeding for disease resistance.The stripe disease field resistance is identified and is often shown relatively poor stability and repeated on the other hand.The technical bottleneck of resistance authentication method also is the major reason that causes the breeding for disease resistance of stripe disease to be made slow progress.And provide new thinking along with the molecular biological disease-resistant variety seed selection that constantly develops into complexity in recent years, will be from the Xa21 of IRBB24 and two resisting bacterial leaf-blight bases of Xa4 with being aggregated in the susceptible hybrid rice restoring line continuous extensive 725 as Deng Qiming etc. by conventional back cross breeding binding molecule marker assisted selection technology, molecular marking technique has become the important means of assistant breeding.
It is for No. 3 the susceptible variety of stripe disease lesion popularizing area maximum that force is educated round-grained rice, it is because the cultivation characteristic and the good characteristics of mouthfeel of high yield and high quality are subjected to liking of producers and consumers deeply, it is one of optimal candidate kind that is used for breed improvement, and town rice 88 be produce at present go up use to the most stable disease-resistant variety of stripe virus disease resistance performance, it simultaneously also is the default disease-resistant contrast of stripe virus disease resistance qualification test in the examination of rice varieties district, Jiangsu Province, be the ideal anti-source material, wherein contain Stv-b
i(" Jiangsu agricultural sciences " 2005, (5): 22-23), with these two kinds and derived varieties thereof is that the seed selection that the parent carries out disease-resistant variety not only can overcome the sterile shortcoming of Hybrids of Indica and Japonica, and because itself can accelerate the seed selection process for the characteristic of main breed, therefore the resistant gene linked marker that is material screening with these two kinds, be expected to directly apply to the seed selection of disease-resistant variety, to improve efficiency of selection and to accelerate breeding process.
Summary of the invention
The present invention is directed to above-mentioned research background, with force educate round-grained rice No. 3/town rice 88 F
2Colony is a mapping population, by the linkage analysis between disease resistance qualification result and SSR flag data, obtained the SSR mark RM229 chain with the stripe disease resistant gene, this mark can be applicable to the assisted selection of stripe disease disease-resistant variety.
Provided by the present invention and the chain SSR mark RM229 of stripe disease resistant gene obtain by the following method:
1) educating round-grained rice with susceptible variety force is for No. 3 female parent, and disease-resistant variety town rice 88 is a male parent, makes up F
2Target group divides individual plant results F
2:3The seed of family is used for resistance to be identified;
2) extract parent, F with the SDS method
1And F
2The DNA in generation;
3) according to the synthetic SSR primer of http://www.gramene.org relevant information, adopt 8% native polyacrylamide gel electrophoresis analysis behind the PCR, obtain molecular marker data;
4) be inoculum with the small brown rice planthopper of carrying rice stripe virus, adopt the inoculation identification method of singly tillering, measure F
2The plant disease resistance is divided into disease-resistant and susceptible whether to fall ill;
5) be inoculum with the small brown rice planthopper of carrying rice stripe virus, adopt the inoculation identification method in seedling stage, measure F
2:3Strain is a disease resistance, presses sickness rate and divides resistance level, and 0-10% is disease-resistant, and 10.1-30% is anti-in being, is susceptible more than 30.1%;
6) in conjunction with 4) and 5) result, determine F
2The plant disease resistance;
7) according to the linkage inheritance law, according to the requirement of MapmakerEXP3.0b software, be " A " with the banding pattern assignment identical with male parent town rice 88, educate No. 3 identical banding pattern assignment of round-grained rice with maternal force and be " B ", with F
1In generation,, identical banding pattern assignment was " H ", and banding pattern assignment unclear or disappearance is " one ", calculates genetic distance with the Kosambi function.
Comprise with the application of the chain SSR mark RM229 of stripe disease disease-resistant gene: educating round-grained rice No. 3 with town rice 88 and derived varieties (being) thereof with force and derived varieties (being) is that the single rice plant of offspring of parent's cross combination is an object, by detecting the banding pattern data of its RM229 mark, can predict the resistance of this plant to stripe disease.
The present invention can overcome in the conventional breeding stripe disease resistance and identify that stability and repeatability are relatively poor, wastes time and energy and shortcoming such as technical threshold height, and its result can simplify system of selection and improve breeding efficiency, and then accelerates the breeding process of disease-resistant variety.
Description of drawings
Fig. 1 educates round-grained rice No. 3 for SSR mark RM229 force/town rice 88 F
2(M is DNA ladder in separation in the colony; 1 educates round-grained rice No. 3 for force; 2 are town rice 88; 3 is F
14-28 is F
2Part individual plant in the colony; A is 250bp; B is 200bp; C is 150bp)
Fig. 2 educates round-grained rice No. 3/town rice 88 F for force
2Disease-resistant gene Stv-b in the colony
iThe site
(1 is DNA ladder to Fig. 3 for SSR mark RM229 shows in the cross combination offspring who with town rice 88 is the parent; 2 educate round-grained rice No. 3 for force; 3 are town rice 88; 5 is Xu rice No. 4; 6 is Xu rice No. 3; 7: connect No. 4, round-grained rice; A is 200bp; B is 150bp; C is 100bp)
Specific implementation method
Method therefor is ordinary method if no special instructions among the following embodiment.
1, for the examination material
Vegetable material: educating round-grained rice with susceptible variety force is for No. 3 female parent, and disease-resistant variety town rice 88 is a male parent, makes up F
2Target group.Positive season in 2006 is with F
2200 familys of colony are planted in experiment field, academy of agricultural sciences, Jiangsu Province, single this plantation.Early tillering stage, choose and tiller for a short time, transplant to the experimental plot, be used for resistance and identify.Boot stage, get the partial blade of each individual plant, be used for ssr analysis.When ripe, results F
2:3The seed of family dries preservation, is used for the seedling stage resistance in 2007 and identifies.
Amboceptor small brown rice planthopper: by screening, the numerous required worm amount of requirement of experiment that arrives of expansion.Adopt spot immune in conjunction with (Dotimmunobinding assay, DIBA) method detects band poison rate (" Jiangsu agricultural sciences " 2004, (1): 50-51) of small brown rice planthopper.The band poison rate that records small brown rice planthopper is 40%.
2, resistance is identified
1) the rice plant of tillering stage inoculation is identified
To be transplanted tiller for a short time live after, directly single seedling inoculation with both ends open Glass tubing (diameter 8cm, high 45cm) in the land for growing field crops.Every pipe is put 4 of 3-4 nymphs in age, binds up with gauze upper end open and raises food after 48 hours, removes Glass tubing and sprays the special mixed solution deinsectization of the sharp strength of pyrrole worm woods, institutes an inquiry after 10 days, investigates once continuous observation 5 times in later per three days.
2) seedling stage, inoculation was identified
With F
2:3Behind the family rice paddy seed presoaking and germinating, be sowed in the glass cylinder, when rice shoot grows to the 1.5-2.0 leaf, connect worm and identify, connect worm and chose seedling in preceding 2 days, eliminate sick and weak seedling, select the consistent seedling of growth, every glass 20 strain is calculated required worm amount by 4 2-3 of every strain small brown rice planthopper in age nymph, evenly inserts it in beaker, raising poison transplants after three days to big Tanaka, rich water quality management such as land for growing field crops.Institute an inquiry after 10 days, investigated once continuous observation 5 times in later per three days.
3) standard of perfection
The standard that sick level investigation standard reference Zhou Tong etc. works out, concrete standard is 0 grade: asymptomatic; 1 grade: the mottled symptom of slight yellow-green colour is arranged on the blade, and sick leaf does not curl, and plant strain growth is normal; 2 grades: present chlorisis on the blade and expansion is connected to irregular yellow-white or yellow-green colour streak, sick leaf does not curl or is slightly curling, and plant strain growth is normal substantially; 3 grades: the serious chlorisis of blade, sick leaf roll song is twisted shape, and the withered symptom of yellow appears in the sick leaf of minority; 4 grades: most of sick leaf roll song is twisted shape, and yellow is withered, plant be withered heart shape or whole strain withered.F
2Average sick level reaches 0,1 grade for disease-resistant in the colony; 2 grades anti-in being; 3,4 grades is susceptible.F
2:3Family is pressed sickness rate and is divided, and 0-10% is disease-resistant, and 10.1-30% is anti-in being, is susceptible more than 30.1%.
Identify and find F
2Show as susceptible 41 strains that have in the colony, its offspring F
2:3The performance of strain system is susceptible; F
2Show as disease-resistant 159 strains that have in the colony, the F that it is corresponding
2:3Showing as disease-resistant 58 strains that have in the family is that 101 strains that have anti-in showing as are.Be that the result that tillering phase, resistance was identified is consistent with the result that seedling stage, resistance was identified.
3 DNA extraction
DNA extraction is with reference to the method for (1983) such as Dellapporta, and concrete steps are as follows:
1) collects the fresh rice leaf of 200-300mg (blades of 20 ℃ of preservations), in-20 ℃ of precooling mortars, use the liquid nitrogen grinding powdered.
2) transfer in the 1.5ml centrifuge tube of-20 ℃ of precoolings.
3) add 600ul SDS extracting solution and shake up, 65 ℃, temperature is bathed 30min.Between or the vibration 3-4 time.
4) add 1/4 volume (about 100ul) KAC, shake up ice bath 30min.
5) chloroform of adding 1/2 volume (about 300-400ul): primary isoamyl alcohol (volume ratio: 24: 1), fully shake up on the vibrator (120rpm, 30min).
6) the centrifugal 15min of 6000-8000rpm under the room temperature gets supernatant.
7) add equal-volume (about 400ul) chloroform: primary isoamyl alcohol (volume ratio: 24: 1), the 80-90rpm 30min that vibrates.
8) the centrifugal 15min of 6000-8000rpm under the room temperature.Get supernatant.
9) add 2 times of volumes (about 700ul)-20 ℃ precooling dehydrated alcohol, shake up-20 ℃ of free setting 20min.
10) the centrifugal 6min of 12000rpm under the room temperature abandons supernatant, precipitation equal-volume (about 400ul) 70% washing with alcohol 10min.
11) abandon 70% ethanol, after the DNA precipitation is air-dry, be dissolved in 200ul TE (1/10), 40C preserves standby.
12) detect the DNA sample quality with 0.8% agarose electrophoresis.Measure the DNA sample concentration with Perkin Elmer MBA 2000 again, it is standby that each sample DNA is diluted to 20ng/ul.
4 ssr analysis
From the relevant SSR primer of http://www.gramene.org search paddy rice the 11st karyomit(e) totally 21 to (synthetic) by Shanghai Ying Jun Bioisystech Co., Ltd.PCR reaction system and program are with reference to the method for (1997) such as Chen, and be specific as follows:
1) PCR reaction system (10ul)
DNA(10ng/ul) 1ul
Primer(4pmol/ul) 0.7ul
10×Buffer(freeMgCl2) 1ul
dNTP(2.5mM) 0.2ul
MgCl2(25mM) 0.6ul
Taq (5u/ul) 0.1ul
ddH2O 6.4ul
Cumulative volume 10ul
2) PCR response procedures
95 ℃ of sex change 5min; 95 ℃ of sex change 30s, 55 ℃ of annealing 30s, 72 ℃ of extension 1min carry out 35 circulations altogether; 72 ℃ are extended 7min.PCR is reflected in the PTC-250 thermal cycler and carries out, after amplified production adds indicator, put 4 ℃ standby.
3) electrophoresis detection
Native polyacrylamide gel electrophoresis analysis with 8%, the method for dying with silver develops the color, and preserves with the preservative film encapsulate, and write down experimental result (Fig. 1) on white light.
The structure of 5 linkage maps
The SSR mark that utilizes polymorphism between the parent to detect to filter out is to 200 F
2Individual plant is analyzed, and according to the requirement of MAPMAKER software (Lander et al, 1987), is " A " with the banding pattern assignment identical with male parent town rice 88, educates No. 3 identical banding pattern assignment of round-grained rice with maternal force and is " B ", with F
2The identical banding pattern assignment of hybrid is " H ", and banding pattern assignment unclear or disappearance is " one ".Calculate genetic distance with the Kosambi function.Made up paddy rice the 11 karyomit(e) partial linkage group of 55.1cM, wherein mark RM229 and disease-resistant gene Stv-b
iBetween genetic distance be 4.7cM (Fig. 2).
Xu rice No. 3, Xu rice No. 4 and connect round-grained rice to be three for No. 4 be that the parent is hybridized assembly and obtained disease-resistant variety with town rice 88, wherein Xu rice is for No. 3 to do maternal with town rice 88, Taiwan rice C does paternal hybrid combination offspring and screens acquisition, Xu rice be for No. 4 with the town rice 88 be female parent, with Xu 41 293 is that paternal hybrid combination offspring screens acquisition, and connect round-grained rice is for No. 4 to make female parent with town rice 88, and middle round-grained rice 3114 is done paternal hybrid combination offspring and screened acquisition.By SSR mark RM229 analyses and prediction Xu rice No. 3, Xu rice No. 4 with connect No. 4 three kinds of round-grained rice the resistance of stripe disease is anti-(Fig. 3; the ssr analysis method is with example one), and the result that three varietal resistances are identified also to town rice 88 similar (" plant protection journal " contributes).It is very identical with actual result to predict the outcome.
Above-mentioned enforcement does not limit the present invention in any form.
Claims (2)
1, a kind of and chain molecule marker of stripe disease resistant gene, it is characterized in that with force educate round-grained rice No. 3/town rice 88 F
2Colony is a mapping population, by the linkage analysis between disease resistance qualification result and SSR flag data, obtains and the chain SSR mark RM229 of stripe disease resistant gene.
2, obtain a kind of and militaryly to educate round-grained rice No. 3 according to right 1/88 combinations of town rice in the application of the chain molecule marker of stripe disease resistant gene, it is characterized in that educating round-grained rice No. 3 with force and derived varieties (being) is that the single rice plant of offspring of parent's cross combination is an object with town rice 88 and derived varieties (being) thereof, by detecting the banding pattern data of its RM229 mark, can predict the resistance of this plant to stripe disease.
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| CNA2007101909276A CN101240336A (en) | 2007-12-03 | 2007-12-03 | Molecule mark interlocked with rice stripe disease resisting gene |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088016A (en) * | 2012-11-23 | 2013-05-08 | 四川农业大学 | Specific marker linked with stripe rust resistance gene of Yilong Tuo wheat, and application of specific marker |
| CN104004751A (en) * | 2014-04-08 | 2014-08-27 | 上海市农业科学院 | STS molecular marker closely linked with rice stripe disease resistant gene site, and its application |
-
2007
- 2007-12-03 CN CNA2007101909276A patent/CN101240336A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103088016A (en) * | 2012-11-23 | 2013-05-08 | 四川农业大学 | Specific marker linked with stripe rust resistance gene of Yilong Tuo wheat, and application of specific marker |
| CN103088016B (en) * | 2012-11-23 | 2014-06-11 | 四川农业大学 | Specific marker linked with stripe rust resistance gene of Yilong Tuo wheat, and application of specific marker |
| CN104004751A (en) * | 2014-04-08 | 2014-08-27 | 上海市农业科学院 | STS molecular marker closely linked with rice stripe disease resistant gene site, and its application |
| CN104004751B (en) * | 2014-04-08 | 2016-08-17 | 上海市农业科学院 | One and rice stripe disease resisting gene loci closely linked STS molecular marker and application |
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Open date: 20080813 |