以科学论文的形式，翻译以下文字：花生（Arachis hypogaea L.）是重要的油料与经济作物之一，广泛分布在100多个国家和地区，2021年全球种植面积3272.1万公顷、单产1648公斤/公顷、总产5393万吨（FAOSTAT，2

Peanut (Arachis hypogaea L.) is an important oil and economic crop, widely distributed in more than 100 countries and regions. In 2021, the global planting area was 32.721 million hectares, with a yield of 1,648 kg/ha and a total output of 53.93 million tons (FAOSTAT, 2021), showing an overall upward trend. Peanut ranks first in many indicators among domestic oil crops, including total output, yield, planting efficiency per unit area, total output value, and export volume (National Bureau of Statistics data, 2021). However, peanut is susceptible to fungal, bacterial, and viral pathogens during its growth process, with peanut bacterial wilt being the most serious threat. Once the soil is infected with the pathogen, it is difficult to completely eradicate and is known as "plant cancer." Bacterial wilt is the most harmful bacterial disease throughout the growth and development of peanuts, caused by Ralstonia solanacearum (Zhang et al., 2017; Luo et al., 2019). In the early stages of the disease, the top leaves of the peanut plant lose water and droop, but still appear green. The plant can secrete extracellular polysaccharides, cell wall-degrading enzymes, adhesion proteins, and surface appendages, which block the vascular bundles and cause insufficient water supply. With the continuous expansion of peanut planting areas, peanut bacterial wilt has gradually spread in China's main peanut producing areas, with an increasing trend. The incidence rate is generally between 10% and 30%, and severe cases can reach over 80%, leading to complete crop failure and loss of harvest. It is particularly common in high-temperature and high-humidity areas, seriously affecting peanut yield and quality (Chen et al., 2007; Elsayed et al., 2019). Currently, there are some disease-resistant varieties (Zhonghua 2, Yuanza 9102, and KQ-19), which have reduced the incidence rate in major disease areas to below 8% (Yu et al., 2011; Gao et al., 2016; Liao, 2016), playing a very important role in stabilizing and developing production in epidemic areas. Further strengthening genetic improvement of peanut bacterial wilt resistance is of great significance for ensuring sufficient supply of oil and protein, increasing income, and enhancing international trade competitiveness