文献类型：期刊文献

英文题名：Adaptation of the Invasive Plant Sphagneticola trilobata to Flooding Stress by Hybridization with Native Relatives

作者：Zhang, Qilei[1,2] Chen, Guangxin[1] Ke, Weiqian[1] Peng, Changlian[1]

第一作者：Zhang, Qilei;张启雷

通信作者：Peng, CL[1]

机构：[1]South China Normal Univ, Sch Life Sci, Guangzhou Key Lab Subtrop Biodivers & Biomonitorin, Guangdong Prov Key Lab Biotechnol Plant Dev, Guangzhou 510631, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Peoples R China

年份：2024

卷号：25

期号：12

外文期刊名：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES

收录：;Scopus(收录号：2-s2.0-85197236157);WOS:【SCI-EXPANDED(收录号:WOS:001257703500001)】；

基金：This work was supported by the National Science Foundation of China (32171493, 31870374) and the Guangdong Basic and Applied Basic Research Foundation (2022A1515110960).

语种：英文

外文关键词：biological invasion; hybridization; flooding; Sphagneticola trilobata

摘要：Hybridization is common between invasive and native species and may produce more adaptive hybrids. The hybrid (Sphagneticola x guangdongensis) of Sphagneticola trilobata (an invasive species) and S. calendulacea (a native species) was found in South China. In this study, S. trilobata, S. calendulacea, and Sphagneticola x guangdongensis were used as research materials to explore their adaptability to flooding stress. Under flooding stress, the ethylene content and the expression of key enzyme genes related to ethylene synthesis in Sphagneticola x guangdongensis and S. calendulacea were significantly higher than those in S. trilobata. A large number of adventitious roots and aerenchyma were generated in Sphagneticola x guangdongensis and S. calendulacea. The contents of reactive oxygen species and malondialdehyde in Sphagneticola x guangdongensis and S. calendulacea were lower than those in S. trilobata, and the leaves of S. trilobata were the most severely damaged under flooding stress. The results indicate that hybridization catalyzed the tolerance of Sphagneticola x guangdongensis to flooding stress, and the responses of Sphagneticola x guangdongensis to flooding stress were more similar to that of its native parent. This suggests that hybridization with native relatives is an important way for invasive species to overcome environmental pressure and achieve invasion.