| Investigation of growth characteristics and analysis of genetic diversity of Agriophyllum squarrosum |
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| DOI：10.7606/j.issn.1000-7601.2020.06.01 |
| Key Words: Agriophyllum squarrosum growth characteristics genetic diversity SSR analysis |
| Author Name | Affiliation | | NIE Fengjie | Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China | | GAN Xiaoyan | Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China | | ZHANG Li | Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China | | GONG Lei | Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China | | LIU Xuan | Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China | | YANG Wenjing | Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China | | SONG Yuxia | Agricultural Biotechnology Centre, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China |
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| Abstract: |
| Agriophyllum squarrosum is a pioneer plant of mobile dune with strong ecological growth adaptability, rich nutrition in seeds and plants. It has many application values. In order to clarify the growth characteristics and genetic diversity of Agriophyllum squarrosum from different habitats, samples from Ningxia, Gansu, and Inner Mongolia were set up to carry out phenological investigation, morphological observation, and analysis of seed nutrition components. The genetic diversity of Agriophyllum squarrosum from 17 natural populations in 3 provinces/autonomous regions was analyzed using SSR molecular markers. The results showed that there were differences in phenological organ morphology and seed nutrient content of Agriophyllum squarrosum from different habitats. The Agriophyllum squarrosum strains in Minqin, Gansu were as high as 20~135 cm, the seed weight was 1.59 g, the starch content was 307.46 mg·g-1, the protein content was 103.36 mg·g-1, and the crude fat content was 54.90 mg·g-1, all of which were better than those of the Agriophyllum squarrosum strains in Yinchuan of Ningxia, Ala\|shan of Inner Mongolia, and Wuwei of Gansu. The genetic diversity analysis of Agriophyllum squarrosum germplasm resources from 17 natural populations in 3 provinces/autonomous regions detected 76 bands, 39 of which were polymorphic, with a polymorphism rate of 51.3%. Using NTSYSpc (Version 2.10E) software, the genetic similarity coefficient of 17 Agriophyllum squarrosum germplasm resources in 3 provinces autonomous regions was calculated between 0.28 and 0.71, and 0.58 was taken as the cut\|off point of similarity coefficient to cluster the 17 shami resources into 3 categories. The resources in Binhe New Area of Ningxia, No. 9 resources in Alashan area of Inner Mongolia and 15 resources in other areas all came from the hinterland of the Tengger Desert, each of which was grouped into 1 category. The results showed that the phylogenetic characteristics of the tested Agriophyllum squarrosum were correlated with the ecological and geographical environment of the original habitat. |
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