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2022-10-15
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New Zealand uses leading technology to detect genes of Pinus radiata with high commercial value

release date: Source: China Wood merchants

Royal Forest Research Institute of New Zealand (scion) October 29, 2019 news: in the 1930s and 1940s, New Zealand introduced Pinus radiata plantations from California, the United States, and there was a boom in building Pinus radiata plantations. With the development of modern genetic breeding and intensive management technology, the automatic calculation of experimental parameters and printing test reports of the tree species have also been improved through artificial cultivation. It often takes a slow process to cultivate new Pinus radiata with more commercial properties, but the time of screening and cultivation can be accelerated by adopting some new technologies. New Zealand uses leading technology to detect high commercial Pinus radiata genes

with the support of the express industry department, Pinus radiata breeding company (rpbc) and the national strategic science and technology investment fund, scion and rpbc recently jointly developed a DNA marker technology, which can quickly detect whether seedlings have high commercial value traits at a low cost. This is the world's first commercial application of Pinus radiata genotyping technology, and it is also an important scientific research achievement of scion in 2019

the gene bank chip used in this detection technology contains more than 36000 DNA markers, which is constructed by sampling and screening hundreds of thousands of field cultivated trees. It can be used to screen fast-growing trees with high (1) regenerative medicine products that are large, straight and dense. The technical principle is to put the DNA sample of Pinus radiata to be tested on the running DNA marker selector chip for detection. Because only high-value traits of trees are screened, this detection method is more efficient, and the entire genome of trees will not be reconstructed in the detection process, but will be searched within the specific genome carrying excellent traits. If the mark is lit in a specific way, the tested sample is likely to be high-quality seedlings. At the same time, the detection can also distinguish five regional varieties of Pinus radiata originated in California, so this technology is also applicable to the breeding of Pinus radiata in Australia, Chile and other countries

because the detection method is technologically stable (the retestable rate is as high as 99.9%), it is cost-effective, so the gene breeding technology of Pinus radiata has a very ideal commercial prospect. The advantage of this technology is that in the seed breeding industry of Pinus radiata, the breeders of Pinus radiata can easily identify cloned seedlings, find out related seedlings and establish pine pedigrees. The next development work of this technology is to embed this new detection technology into the cultivation cycle of Pinus radiata and cultivate varieties in the propagation of Pinus radiata. Compared with the price of another detection technology in the market, the price of this technology (single sample detection) is only 1/10, so it is easier to promote and use

Brent Gilder, CEO of rpbc, said that after five years of joint research and development, the technology has been successful. The company will deploy the promotion of this new technology, and the prospect is very optimistic. Using this technology, all forest owners in New Zealand and offshore countries who will seriously damage the accuracy of hydraulic valves and cylinders are expected to quickly and accurately cultivate the germplasm resources provided by rpbc. Rpbc also plans to integrate this technology into its breeding program, and plans to hold a genomics Symposium in 2020 to promote the adoption of this new technology by the industry

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