A new species of buckwheat has been found in The Liangshan Dai Autonomous Prefecture: wild buckwheat with long flower columns

News reporter learned from the Chinese Academy of Agricultural Sciences, the Chinese Academy of Agricultural Sciences Crop Science Research Institute of outstanding crop quality resources exploration and innovative use of innovative team in The Liangshan Yi Autonomous Prefecture, Sichuan Province, found a new species of buckwheat, the new species was named Fagopyrum longistylum M. Zhou and Y. Tang. The findings were published in the Journal of Plant Classification (PHYTOTAXA) on January 29. The study was written by Zhou Meiliang of the Crop Science Research Institute of the Chinese Academy of Agricultural Sciences and Professor Tang Yu of sichuan Tourism College, and the first author was Zhang Triumph, Associate Researcher of the Crop Science Research Institute of the Chinese Academy of Agricultural Sciences.
according to Zhou Meiliang, buckwheat plants originated in China, there are currently 21 species reported, of which the cultivation of sweet and bitter slugs has spread from China to all parts of the world, the rest of the species are mainly distributed in China's Sichuan, Yunnan, Tibet and other southwest high-altitude steep mountainous areas and the Jinsha River basin.
wild buckwheat resources are rich in genetic resources and play an important role in promoting the breeding and improvement of cultivated buckwheat. In the 1990s, Professor DshiI, a buckwheat species resource scientist at Kyoto University in Japan, discovered seven new species of buckwheat in southwest China, among which seven new species were found. Homotropicum) because it is iso-flower column self-affinity type flower, is widely used in the international cultivation of sweet shoal breeding improvement, sweet shoal yield and quality breeding has played a great role in promoting.
It is learned that in recent years, Zhou Meiliang led the team for many years to carry out wild buckwheat resource collection and investigation work in several provinces in western China, a cumulative journey of more than 50,000 kilometers, a total of more than 20 species of 1069 wild buckwheat species and cultivated wild type materials, and collected first-hand pictures and specimens, to understand the distribution of China's wild buckwheat resources range and abundance.
long flower column wild buckwheat is in the process in The Liangshan Yi Autonomous Prefecture of Sichuan Province, a new species of buckwheat found in the territory of Heli County. According to the introduction, when the species was found in the wild, the flowers on its plants were all long flower column type flowers (females significantly longer than males), no short flower column flowers were found.
2018-2020, in Beijing, Chengdu and Liangshan three test site, respectively, strict single-plant isolation, to observe its pollination and seolation, indicating that it is completely self-pollination, solid condition is normal. The plant morphology and flowers of the offspring were observed, and their morphological characteristics were completely consistent with the growth in the wild, and the genetic characteristics were very stable.
according to its morphological characteristics, it is named the 22nd species of long flower column wild buckwheat. To date, all kinds of flowers in the buckwheat genus have been dominated by 2 types, one is a type 2 flower (the flower column is different in length), the other type is the same type of flower (the flower column is equally long), and the other type is self-pollination self-affinity. Of the current 21 species, 13 are type II flowers and 8 are of the same type.
research points out that the discovery of the long flower column wild buckwheat is the only single type of flower buckwheat species in the special type of flower column, that is, only the long flower column (short male) type of flower, and self-affinity, breaking the traditional understanding of the buckwheat genus flower type.
research suggests that the discovery of this species provides an important material basis for buckwheat yield breeding and domestication of the origin of buckwheat genus, as well as an important genetic resource for the evolution of plant flower type and the study of self-affinity.
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