整合形态,分子和气候证据来区分两个神秘的叶文件物种并评估它们的潜在分布
Qian Gao1,2, Zhiqian Li1, Jihong Tang2,3
1State Key Laboratory of Agricultural and Forestry Biosecurity, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
Insects
|January 28, 2026
概括
这项研究使用遗传分析区分了类似的叶滚筒虫害,Cnaphalocrocis medinalis和Cnaphalocrocis patnalis,并预测气候变化将增加它们的破坏,特别是C. patnalis.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 生态生态学 生态生态学
- 遗传学 是一个遗传学.
背景情况:
- *Cnaphalocrocis medinalis*和*Cnaphalocrocis patnalis*的幼虫在形态上是相似的,导致识别挑战.
- 准确的鉴定对于了解种群动态和制定有效的对大米作物的害虫控制策略至关重要.
研究的目的:
- 使用形态学,遗传学和人口数据,区分 *C. medinalis* 和 *C. patnalis*.
- 在当前和未来的气候场景下预测两种物种的潜在全球分布.
- 评估这些害虫对大米产量的影响,并提供综合性害虫防治信息.
主要方法:
- 在海南省 (2021-2023) 使用搜索灯陷进行现场监测.
- 线粒体*COI*基因测序用于物种识别.
- 根据气候变量预测潜在的地理分布.
主要成果:
- 这两种物种在4月至6月期间的繁殖量达到峰值,C. patnalis稍早达到峰值,并造成更严重的破坏.
- 基因分析证实 *C. medinalis* 和 *C. patnalis* 是不同的物种.
- 马克斯恩特模型将南欧亚地区确定为合适的息地,最潮湿的月份降水是关键因素.
结论:
- *C. medinalis* 和 *C. patnalis* 是不同的害虫,分布重叠,生命周期相似.
- 预计气候变化将扩大适合息地,增加这些叶滚筒机,特别是C. patnalis的威胁.
- 调查结果支持需要综合管理战略,解决物种及其气候驱动的扩张问题.
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