Draft genome sequence of pigeonpea (Cajanus cajan), an orphan legume crop of resource-poor farmers

By Rajeev K. Varshney, Wenbin Chen, Yupeng Li, A. Bharti, R. Saxena, J. Schlueter, M. Donoghue, Sarwar Azam, Guangyi Fan, Adam M. Whaley and 21 more. Nature Biotechnology, 2011

812 citations recorded by the source corpus.

Pigeonpea is an important legume food crop grown primarily by smallholder farmers in many semi-arid tropical regions of the world. We used the Illumina next-generation sequencing platform to generate 237.2 Gb of sequence, which along with Sanger-based bacterial artificial chromosome end sequences and a genetic map, we assembled into scaffolds representing 72.7% (605.78 Mb) of the 833.07 Mb pigeonpea genome. Genome analysis predicted 48,680 genes for pigeonpea and also showed the potential role that certain gene families, for example, drought tolerance–related genes, have played throughout the domestication of pigeonpea and the evolution of its ancestors. Although we found a few segmental duplication events, we did not observe the recent genome-wide duplication events observed in soybean. This reference genome sequence will facilitate the identification of the genetic basis of agronomically important traits, and accelerate the development of improved pigeonpea varieties that could improve food security in many developing countries.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/1e6a4f1022a125d11c389af575752b9199b49e4f

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Citations in the corpus

Advances in Host Plant and Rhizobium Genomics to Enhance Symbiotic Nitrogen Fixation in Grain Legumes (2015, background): “Recently among the grain legume crops, chickpea, pigeonpea and soybean genomes have also been sequenced (Schmutz et al., 2010; Varshney et al., 2012, 2013).”
Crop wild relatives of pigeonpea [Cajanus cajan (L.) Millsp.]: Distributions, ex situ conservation status, and potential genetic resources for abiotic stress tolerance (2015, methodology): “Greater investment in genotypic and phenotypic characterization and evaluation for traits of interest (Mallikarjuna et al., 2011; Upadhyaya et al., 2013a; Varshney et al., 2011) and in breeding programs using CWR, represent equally urgent steps (Henry, 2014; Tester and Langridge, 2010; Guarino and L”
The genome of the pear (Pyrus bretschneideri Rehd.) (2013, neutral): “(Varshney et al. 2012), black cottonwood (0.26”
Genome sequence of the cultivated cotton Gossypium arboreum (2014, neutral): “We believe that this genome has the greatest amount of repeat-containing sequences among sequenced eudicots 19–24 .”
Draft genome sequence of chickpea (Cicer arietinum) provides a resource for trait improvement (2013, neutral): “14 and soybean (59”