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United States Department of Agriculture

Agricultural Research Service

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Research Project: Ethylene Signal Transduction and Cross-Talk with Other Hormones and Signals in Relation to Soybean Abscission and Nematode Infection (soft2)

Location: Soybean Genomics & Improvement Laboratory

Project Number: 8042-21220-232-33-S
Project Type: Non-Assistance Cooperative Agreement

Start Date: Mar 1, 2013
End Date: Jul 31, 2016

Ethylene is an essential hormonal signal for soybean leaf and flower abscission and nematode infection of roots. In addition, other hormones, e.g., auxin, and peptide signals, e.g., IDA, modulate the plants response to ethylene. Gene expression and proteins involved in developmental mechanisms associated with abscission and nematode colonization of roots will be identified and characterized. The goal is to better understand shared signaling paths in soybean in order to genetically engineer soybean with higher productivity and improved resistance to nematode infection.

Several experimental approaches including RNA sequencing and proteomics will be used to identify genes and proteins linked to abscission and nematode infection. Their functional role in these processes will be determined by over-expression and suppression of selected genes in transgenic plants. Transformation protocols include viral induced gene silencing (VIGS), transformation and regeneration of mature plants, and hairy root transformation of axenic roots maintained on culture media.

Last Modified: 10/16/2017
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