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Chankaew S, Sriwichai S, Rakvong T, Monkham T, Sanitchon J, Tangphatsornruang S, Kongkachana W, Sonthirod C, Pootakham W, Amkul K, Kaewwongwal A, Laosatit K, Somta P. The First Genetic Linkage Map of Winged Bean [Psophocarpus tetragonolobus (L.) DC.] and QTL Mapping for Flower-, Pod-, and Seed-Related Traits. PLANTS 2022; 11:plants11040500. [PMID: 35214834 PMCID: PMC8878720 DOI: 10.3390/plants11040500] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/10/2022] [Accepted: 02/10/2022] [Indexed: 11/16/2022]
Abstract
Winged bean [Psophocarpus tetragonolobus (L.) DC.] (2n = 2× = 18) is a tropical legume crop with multipurpose usages. Recently, the winged bean has regained attention from scientists as a food protein source. Currently, there is no breeding program for winged bean cultivars. All winged bean cultivars are landraces or selections from landraces. Molecular markers and genetic linkage maps are pre-requisites for molecular plant breeding. The aim of this study was to develop a high-density linkage map and identify quantitative trait loci (QTLs) for pod and seed-related traits of the winged bean. An F2 population of 86 plants was developed from a cross between winged bean accessions W054 and TPT9 showing contrasting pod length, and pod, flower and seed colors. A genetic linkage map of 1384 single nucleotide polymorphism (SNP) markers generated from restriction site-associated DNA sequencing was constructed. The map resolved nine haploid chromosomes of the winged bean and spanned the cumulative length of 4552.8 cM with the number of SNPs per linkage ranging from 36 to 218 with an average of 153.78. QTL analysis in the F2 population revealed 31 QTLs controlling pod length, pod color, pod anthocyanin content, flower color, and seed color. The number of QTLs per trait varied between 1 (seed length) to 7 (banner color). Interestingly, the major QTLs for pod color, anthocyanin content, and calyx color, and for seed color and flower wing color were located at the same position. The high-density linkage map QTLs reported in this study will be useful for molecular breeding of winged beans.
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Affiliation(s)
- Sompong Chankaew
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand; (S.C.); (S.S.); (T.R.); (T.M.); (J.S.)
| | - Sasiprapa Sriwichai
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand; (S.C.); (S.S.); (T.R.); (T.M.); (J.S.)
| | - Teppratan Rakvong
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand; (S.C.); (S.S.); (T.R.); (T.M.); (J.S.)
| | - Tidarat Monkham
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand; (S.C.); (S.S.); (T.R.); (T.M.); (J.S.)
| | - Jirawat Sanitchon
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand; (S.C.); (S.S.); (T.R.); (T.M.); (J.S.)
| | - Sithichoke Tangphatsornruang
- National Omics Center (NOC), National Science and Technology Development Agency, 111 Thailand Science Park, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; (S.T.); (W.K.); (C.S.); (W.P.)
| | - Wasitthee Kongkachana
- National Omics Center (NOC), National Science and Technology Development Agency, 111 Thailand Science Park, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; (S.T.); (W.K.); (C.S.); (W.P.)
| | - Chutima Sonthirod
- National Omics Center (NOC), National Science and Technology Development Agency, 111 Thailand Science Park, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; (S.T.); (W.K.); (C.S.); (W.P.)
| | - Wirulda Pootakham
- National Omics Center (NOC), National Science and Technology Development Agency, 111 Thailand Science Park, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand; (S.T.); (W.K.); (C.S.); (W.P.)
| | - Kitiya Amkul
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom 73140, Thailand; (K.A.); (A.K.); (K.L.)
| | - Anochar Kaewwongwal
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom 73140, Thailand; (K.A.); (A.K.); (K.L.)
| | - Kularb Laosatit
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom 73140, Thailand; (K.A.); (A.K.); (K.L.)
| | - Prakit Somta
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom 73140, Thailand; (K.A.); (A.K.); (K.L.)
- Correspondence:
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