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Where did the flowers first come from? Darwin, the founder of evolution and a famous British biologist, has been troubled by this problem.
new study, published in the British journal New Botanists, may offer some clues to the mystery.
flowering plants, also known as beech plants, are not only important sources of food for humans, but also make the plant world more colorful.
, flowering plants don't always exist.
more than 400 million years ago, plants appeared on Earth, but not until 1. Flowering plants were only available 500 million years ago.
, they quickly evolved flowers of all shapes.
Darwin had expressed his dismay at the origin and rapid evolution of flowering plants, calling it an "annoying mystery".
are often used in comparison with flowering plants are naked plants, naked plants and flowering plants belong to the same seed plant.
, for example, conifers such as pine trees are naked plants, they do not have real flowers, the embryo beads will be exposed.
In contrast, there are many "innovations" in the structure of flowering plant flowers: the outerst are slivers and petals, which contain males and females, while in the female's sub-room, there are fertilized embryo beads that will develop into seeds.
why nature can "invent" flowers with such complex structures? Researchers at France's National Centre for Scientific Research and the Kiew Botanic Gardens in the UK report that they have studied a more primitive naked plant, chia orchids.
can survive for thousands of years, mainly in the deserts of Namibia and Angola.
What is unique about this naked plant is that in its structure, called male ball flowers but not real flowers, there are embryo beads that do not reproduce, indicating that it tried and failed to evolve both sexes.
refers to a flower in a flowering plant that contains both males and females.
in chili and some conifer trees, the researchers also found special genes that are similar to the genes and levels associated with flowering plants responsible for flowering structures.
researchers believe that flowering plants and their "cousin" naked plants have similar genetic concatenums, suggesting that this is "inherited" from a common ancestor.
this suggests that the mechanism by which flowering plants can flower is not necessarily "original" for flowering plants, and may be inherited and reused by flowering plants, which is common in evolutionary processes.
researchers believe the findings could help to study the origins of flowers, such as how genes appear and how they play a role in flowering plants.
researchers say they will continue to study other features of flowering plants to get a more complete understanding of where the flowers first came from.
source: Xinhua News Agency.