-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
| The study obtains the first high-quality genome of a rose plant |
| Deciphering the "inner beauty" of roses |
Rose flower
.
Photo courtesy of Chen FeiRose flower
Recently, Professor Cheng Zongming and Dr.
Chen Fei of the College of Horticulture of Nanjing Agricultural University and others published research papers in Horticulture Research.
They deciphered the genome of the first rose plant to achieve the level of high-quality chromosome assembly, and revealed that the rose is salt-tolerant, The molecular genetic basis of drought tolerance provides scientific and technological support for the research of rose genetics, and has high breeding value for improving the resistance of roses, roses and other varieties
.
Strong ecological adaptability
Strong ecological adaptability The rose is classified into the rose species of Rosaceae, Rosaceae, Rosaceae
.
Roses are deciduous shrubs with thorny branches, odd-numbered pinnate compound leaves, and about 5-9 small leaves
"Rose is a good economic crop.
The flowers are mainly used to extract rose essential oil, which is used in cosmetics, food, fine chemicals and other industrial applications
.
Moreover, roses are also very important ornamental plants in landscape gardens
"Its ecological value is very high.
It can resist drought and salinity, so it can grow on the seaside
.
Few plants can adapt to both arid environment and beach areas.
In fact, the origin of rose is China, but because of its resistance to salinity, it was introduced to the east coast of the United States.
Because of its beauty and strength, the rose quickly spread along the coast of North America and became an "invasive plant.
"
.
Because the rose grows on the beach and its fruit resembles a tomato, the rose fruit is called "beach tomato" in the United States
Rose fruit
.
Photo courtesy of Chen FeiRose fruit
Cheng Zongming introduced that they carried out experiments on the beach along the beach of roses in the coastal area of Jiangsu Province in the early years, and found that roses are indeed very salt-tolerant, and planting roses along the coast has also contributed to greening
.
From a scientific point of view, the mechanism of why this plant is so salt-tolerant is not clear
.
Due to the lack of genomic information of roses, the production, education and research of roses is still in its infancy, which limits the improvement of rose breeding
The first high-quality rose genome
The first high-quality rose genome Researchers have embarked on a new journey.
They hope to decipher genetic information by decoding the rose genome
.
However, because the rose genome has a certain degree of heterozygosity, the research progress of roses is not as fast as crops
.
"After translating this'book' and deciphering the genetic secrets, we can know what exactly is in the'basket' of the genome, how many genes there are in total, and which genes are working
.
" Cheng Zongming said
.
"We selected wild tidal flat roses that are highly salt-tolerant as the sequencing materials
.
" Chen Fei introduced, and then used advanced third-generation sequencing technology to obtain high-quality 7 rose chromosomal sequences with a genome size of 382.
6Mb
.
Compared with the genomes of Rosaceae rose, strawberry and other genomes, the rose genome sequence is of high quality and completeness, and the sequence has high reliability
.
Researchers also obtained 39,704 genes of rose through gene annotation
.
"Moreover, we found that the genome of roses is relatively conservative
.
In other closely related species, they have some obvious chromosomal changes, but there are no changes in roses, which is very interesting
.
" Chen Fei said
.
Based on the comparative analysis of rose and other Rosaceae genomes, researchers found a unique large inverted fragment in rose, and found inverted fragments caused by the whole genome triple (WGT) event in strawberries
.
The study also found that gene modules related to flower development and stress resistance signals were retained after WGT
.
"The stress resistance of roses is relatively outstanding, mainly due to the fact that roses have retained two related genes in the long-term evolution process
.
We found that these two candidate genes have a strong effect on the ecological adaptability of roses, which may have contributed to this kind of rose.
Unique ability to adapt to harsh environments
.
" Chen Fei said
.
Rose flower
.
Photo courtesy of Chen Fei
.
Photo courtesy of Chen Fei
Provide genetic resources to assist breeding
Provide genetic resources to assist breeding Rose has many "treasures", such as essential oil components, aroma, drought resistance and salt-alkali resistance, etc.
Researchers have high hopes for these "advantages"
.
"Through the clear'map' we provide for rose genetic breeding and ecological research, researchers in the field can find interested research objects on this map, which promotes the upgrading of rose research
.
" Chen Fei said
.
In his opinion, high-quality genomes also provide great convenience for the comparative study of related species, and provide some excellent genetic resources for the genetic improvement of Rosaceae fruit trees and the improvement of drought resistance and salt-alkaline resistance
.
"In the future, we will do a comprehensive analysis, hoping to cultivate better salt-tolerant plants and drought-tolerant plants, increase the output of rose essential oil, and enrich the types of essential oils and fragrances
.
” Cheng Zongming said
.
Related paper information: https://doi.
org/10.
1038/s41438-021-00594-z
