TY  - JOUR
N2  - Pigeonpea (Cajanus cajan), a tropical grain legume with low input requirements, is expected to continue to have an important role in supplying food and nutritional security in developing countries in Asia, Africa and the tropical Americas. From whole-genome resequencing of 292 Cajanus accessions encompassing breeding lines, landraces and wild species, we characterize genome-wide variation. On the basis of a scan for selective sweeps, we find several genomic regions that were likely targets of domestication and breeding. Using genome-wide association analysis, we identify associations between several candidate genes and agronomically important traits. Candidate genes for these traits in pigeonpea have sequence similarity to genes functionally characterized in other plants for flowering time control, seed development and pod dehiscence. Our findings will allow acceleration of genetic gains for key traits to improve yield and sustainability in pigeonpea.
N1  - The authors are thankful to the US Agency for International Development (USAID) for providing financial support to R.K.V. The authors would like to thank A. Gafoor, B. Poornima and P. Bajaj for their support in this work. This work has been undertaken as part of the CGIAR Research Program on Grain Legumes. ICRISAT is a member of the CGIAR Consortium.
AV  - restricted
KW  - Genome-wide association studies
KW  -  Plant genetics
KW  -  Genome resequencing
KW  -  Pigeonpea accessions
KW  -  Cajanus accessions
KW  -  Phylogenetic relationships
KW  -  genomic regions
KW  -  agronomic traits
KW  -  Cajanus cajan
A1  - Varshney, R K
A1  - Saxena, R K
A1  - Upadhyaya, H D
A1  - Khan, A W
A1  - Yu, Y
A1  - Kim, C
A1  - Rathore, A
A1  - Kim, D
A1  - Kim, J
A1  - An, S
A1  - Kumar, V
A1  - Anuradha, G
A1  - Yamini, K N
A1  - Zhang, W
A1  - Muniswamy, S
A1  - Kim, J S
A1  - Penmetsa, R V
A1  - von Wettberg, E
A1  - Datta, S K
TI  - Whole-genome resequencing of 292 pigeonpea accessions identifies genomic regions associated with domestication and agronomic traits
UR  - http://dx.doi.org/10.1038/ng.3872
JF  - Nature Genetics
SP  - 1
Y1  - 2017/05/22/
ID  - icrisat10021
EP  - 9
SN  - 1061-4036
PB  - Nature Publishing Group
ER  -