The first genetic map for a psoraleoid legume (Bituminaria bituminosa) reveals highly conserved synteny with phaseoloid legumes

Date

2020

Authors

Nelson, Matthew
Jabbari, Jafar
Turakulov, Rustamzhon
Pradhan, Aneeta
Pazos-Navarro, Maria
Stai, Jacob
Cannon, Steven
Real, Daniel

Journal Title

Journal ISSN

Volume Title

Publisher

M D P I AG

Abstract

We present the first genetic map of tedera (Bituminaria bituminosa (L.) C.H. Stirton), a drought-tolerant forage legume from the Canary Islands with useful pharmaceutical properties. It is also the first genetic map for any species in the tribe Psoraleeae (Fabaceae). The map comprises 2042 genotyping-by-sequencing (GBS) markers distributed across 10 linkage groups, consistent with the haploid chromosome count for this species (n = 10). Sequence tags from the markers were used to find homologous matches in the genome sequences of the closely related species in the Phaseoleae tribe: soybean, common bean, and cowpea. No tedera linkage groups align in their entirety to chromosomes in any of these phaseoloid species, but there are long stretches of collinearity that could be used in tedera research for gene discovery purposes using the better-resourced phaseoloid species. Using Ks analysis of a tedera transcriptome against five legume genomes provides an estimated divergence time of 17.4 million years between tedera and soybean. Genomic information and resources developed here will be invaluable for breeding tedera varieties for forage and pharmaceutical purposes.

Description

Keywords

legume genome evolution, Phaseoleae, Psoraleeae, Ks analysis, linkage mapping, perennial forage legume, tedera

Citation

Source

Plants

Type

Journal article

Book Title

Entity type

Access Statement

Open Access

License Rights

Creative Commons Attribution licence

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