Gao Yuan, Li Shenghui, Yuan Guohui, Fang Jiapeng, Shen Guohui, Tian Zhihui
Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
College of Agriculture, Anshun University, Anshun 561000, China.
Biology (Basel). 2023 Jun 30;12(7):936. doi: 10.3390/biology12070936.
and , morphologically similar at the seedling stage, are the most common broad-leaved weeds in paddy fields. Our study showed that occupied more space than when competing with rice. However, germination has lower temperature adaptability. No difference in sensitivity to common herbicides between two species was observed. Chloroplast (cp) genomes could be conducive to clarify their genetic relationship. The complete cp genome sequences of (158,401 bp) and (157,900 bp) were assembled for the first time. In , there were 91 simple sequence repeats, 115 long repeats, and 86 protein-encoding genes, one, sixteen, and thirty more than those in . Inverted repeats regions expansion and contraction and the phylogenetic tree based on cp genomes demonstrated the closely relationship between the two species. However, in , 20 single nucleotide polymorphisms in the CDS region were detected compared to , which can be used to distinguish the two species. Moreover, there was one unique gene, , only in . This study provides reliable molecular resources for future research focusing on the infrageneric taxa identification, phylogenetic resolution, population structure, and biodiversity of species.
并且，在幼苗期形态相似，是稻田中最常见的阔叶杂草。我们的研究表明，与水稻竞争时，[物种A]比[物种B]占据更多空间。然而，[物种B]的萌发具有较低的温度适应性。未观察到两种[物种名称]对常见除草剂的敏感性差异。叶绿体（cp）基因组可能有助于阐明它们的遗传关系。首次组装了[物种A]（158,401 bp）和[物种B]（157,900 bp）的完整cp基因组序列。在[物种A]中，有91个简单序列重复、115个长重复和86个蛋白质编码基因，比[物种B]分别多1个、16个和30个。反向重复区域的扩张和收缩以及基于cp基因组的系统发育树表明这两个物种之间关系密切。然而，与[物种B]相比，在[物种A]的CDS区域检测到20个单核苷酸多态性，可用于区分这两个物种。此外，仅在[物种A]中有一个独特的基因，[基因名称]。本研究为未来聚焦于[物种名称]物种的属下分类群鉴定、系统发育解析、种群结构和生物多样性的研究提供了可靠的分子资源。
