“As the roses evolved and were domesticated, they have new colors, clear markings on the petals and the ability to bloom with bunches.”, – WRITE: www.unian.ua
As the roses evolved and were domesticated, they have new colors, clear markings on the petals and the ability to bloom with bunches.
There are currently over 150-200 species of roses and over 35,000 varieties / photos of depositphotos.comRed roses in the past were probably yellow, as indicated by a large genomic analysis conducted by researchers at Beijing University of Forestry.
According to Phys.org, roses of all colors, including white, red, pink and peach, belong to the ROSA genus, which is a member of the Rositaev family.
The reconstruction of ancestral characteristics with the help of genomic analysis showed that all roads lead to a common ancestor – a single -grain flower of yellow with seven leaves. The results are published in Nature Plants.
These flowers were successfully domesticated to reflect the aesthetic preferences of each era.
“It all began with the revival of rose breeding in the 1700s, marked by the crossing of ancient wild Chinese roses and old European varieties – plants, selectively withdrawn by human intervention to develop the desired characteristics,” the article reads.
It is noted that there are currently more than 150-200 species of roses and more than 35,000 varieties that show a wide range of flowering, aromas and colors. However, the global climate change prompted rose breeders to switch their attention from purely cosmetic features to remove rose varieties, which are more resistant to stressful factors, such as drought, disease and which are easier to care for.
Borrowing genetic resources from wild rose varieties that have valuable features, such as aroma and disease resistance, is a promising strategy for removing persistent varieties of roses that do not require special care.
It is important that a clear understanding of the origin and evolution of the ROSA genus, both wild and cultivated varieties, can not only promote breeding work, but also help to preserve the rates that are at risk of disappearance.
Researchers have collected 205 samples of more than 80 ROSA species covering 84% of what is documented in China Flora. The samples were then analyzed by genomic sequencing, population genetics and other methods to trace their ancestral traits. They have studied 707 single -core genes found as a set of conservative genetic markers, such as single -nucleotide polymorphisms – the most common type of genetic variability, discovered in DNA – which helped them to make a map of evolutionary and geographical history and connections between types of roses.
Interestingly, the reconstruction of ancestral characteristics showed that the common ancestor of the studied samples was a yellow flower with one row of petals and leaves divided into seven leaves. As the roses evolved and were domesticated, they have new colors, clear markings on the petals and the ability to bloom with bunches.
The study also brought a new understanding of a widespread notion that Rosa genus has emerged in Central Asia. Genetic evidence pointed to two main centers of variety of roses in China – one in the dry northwest, where yellow roses with small leaves grow, and the other in the warm and humid southwest, where the white aromatic variety thrives.
Tips for Care for RosesFlower lovers constantly think what to nourish roses and how to protect them from pests. These lush plants attract not only humans but also insects. Pests feed on the sweet juice of plants, which is why the latter suffer or even die.
Fortunately, it is not necessary to buy expensive drugs to get rid of midges. We have told you how to process roses from aphids inexpensive or even free of charge.
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