Mapping Small Gene Families in Soybean
Author Information
Author(s): Shopinski Kay L, Iqbal Muhammad J, Shultz Jeffry L, Jayaraman Dheepakkumaran, Lightfoot David A
Primary Institution: Institute for Sustainable and Renewable Resources (ISRR), Institute for Advanced Learning and Research (IALR), Danville, VA, USA
Hypothesis
The study aims to develop methods to anchor plant defense- and stress-related gene paralogues on the minimum tile path derived from the soybean physical map.
Conclusion
The method can identify evolutionary patterns such as selective gene loss or rapid divergence in soybean gene families.
Supporting Evidence
- The study identified 613 paralogues for 201 of the 309 probes used.
- Estimates of gene family sizes were more similar to those made by Southern hybridization than by bioinformatics inferences.
- Many BAC clones contained more than one kind of paralogue.
Takeaway
Researchers created a map to find important genes in soybeans that help the plant deal with stress and disease.
Methodology
The study used EST probes from soybean root libraries to hybridize with BAC clones on a physical map to identify gene paralogues.
Limitations
The study may not represent the entire soybean genome due to the limited number of ESTs used.
Digital Object Identifier (DOI)
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