数字农科院2.0

一份绿米水稻种质资源的发现及初步研究

文献类型： 中文期刊

关键词： 水稻;;种质资源;;绿色果皮

期刊名称：植物遗传资源学报

ISSN： 1672-1810

年卷期： 2021 年

页码：

收录情况： 北大核心（2020版） ; CSCD（2020-2021年度） ; 农林核心（2020版） ; 科技核心（2020版）

摘要： Colorful-pericarped rice is an important component of rice germplasm resources. It could be the key material for satisfying the market demand for colored rice. An accession of rice that produced some seeds with green pericarp was found during our investigation of the collected rice germplasm resources. A stable line of green rice was obtained by multigeneration selfing, and was named LM8. It was highly light-sensitive, and was easily crossed with Asian cultivated rice. When grown in Guangxi, it produced 19 effective tillers per plant, with an erect, compact habit, and with the plant height, flag leaf length, flag leaf width and panicle length of 117.7 cm, 32.1 cm, 1.1 cm, and 22.5 cm, respectively. LM8 had very small, ellipsoidal seeds with 1000-grain weight of 8.73 g, 5.76 mm in length and 2.09 mm in width, rich in fat and essential trace elements needed by human body. The evolutionary tree demonstrated that LM8 was of AA genome type and grouped with Asian cultivated rice. Having some wild characteristics in its initial discovery, such as the presence of awn, strong shattering of seed, and hard deep-brown hull, LM8 could be a kind of weedy rice. This study would not only promote the establishment and improvement of genetic development and regulation network of rice pericarp color, but also provide the genetic material for innovation breeding of green rice varieties, and therefore satisfy the diverse consumer preferences and play a positive role in rural revitalization

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