| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Wang, Yang Yang, Yunli Wang, Fusen Wang, Guangyu Wang, Chu Wang, Wei Chen, Kun Gu, Chenrui Yu, Qibin Jiang, Jing |
| Abstract | Late-embryogenesis-abundant proteins (LEA) typically accumulate to high levels during seed dehydration and have an important role in the plant response to abiotic stresses. Transgenic hybrid poplars of 9-year-old TaLEA lines showed adaptation to drought and saline–alkali conditions. The exogenous gene was expressed normally, and the T-DNA insertion sites were identified on different chromosomes. Improving the survival rate of afforested species is essential for forest production in saline–alkali areas. Transgenic hybrid poplars could provide potential genetic materials for adaptation to semi-arid areas. We investigated the growth stability and adaptability of 9-year-old TaLEA transgenic lines of Populus simonii × nigra, as well as the position of T-DNA insertion and the stability of exogenous genes. Transgenic poplar field trials were carried out using a multi-site joint analysis. Molecular characteristics and the T-DNA insertion sites were identified by genome resequencing. The XL-9, XL-7, and XL-13 preferred lines consistently showed the highest and most stable growth across three testing sites. The exogenous gene was integrated into the genome chromosome and was expressed normally in the XL-1, XL-7, and XL-9 lines after 9 years. XL-9, XL-7, and XL-13 are the preferred lines for subsequent production tests. Transgenic hybrid poplar lines can be selected for adaptability 2 years after field experiments. The results of this study will provide further guidance for testing of transgenic trees for future forest production. |
| Related Links | https://annforsci.biomedcentral.com/counter/pdf/10.1007/s13595-021-01038-3.pdf |
| Ending Page | 13 |
| Page Count | 13 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1007/s13595-021-01038-3 |
| Journal | Annals of Forest Science |
| Issue Number | 2 |
| Volume Number | 78 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2021-04-14 |
| Access Restriction | Open |
| Subject Keyword | Forestry Wood Science & Technology Forestry Management Tree Biology Environment Populus simonii × nigra Late-embryogenesis-abundant proteins Abiotic stress Field experiment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Forestry Ecology |
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