Seed protein content and its relationships with agronomic traits in pigeonpea is controlled by both main and epistatic effects QTLs

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dc.contributor.authorObala, Jimmy
dc.contributor.authorSaxena, Rachit K.
dc.contributor.authorSingh, Vikas K.
dc.contributor.authorKale, Sandip M.
dc.contributor.authorGarg, Vanika
dc.contributor.authorSameer Kumar, C. V.
dc.contributor.authorSaxena, K. B.
dc.contributor.authorTongoona, Pangirayi
dc.contributor.authorSibiya, Julia
dc.contributor.authorVarshney, Rajeev K.
dc.date.accessioned2023-09-06T18:07:36Z
dc.date.available2023-09-06T18:07:36Z
dc.date.issued2020
dc.description.abstractThe genetic architecture of seed protein content (SPC) and its relationships to agronomic traits in pigeonpea is poorly understood. Accordingly, five F2 populations segregating for SPC and four agronomic traits (seed weight (SW), seed yield (SY), growth habit (GH) and days to first flowering (DFF)) were phenotyped and genotyped using genotyping-by-sequencing approach. Five high-density population-specific genetic maps were constructed with an average inter-marker distance of 1.6 to 3.5 cM, and subsequently, integrated into a consensus map with average marker spacing of 1.6 cM. Based on analysis of phenotyping data and genotyping data, 192 main effect QTLs (M-QTLs) with phenotypic variation explained (PVE) of 0.7 to 91.3% were detected for the five traits across the five populations. Major effect (PVE ≥ 10%) M-QTLs included 14 M-QTLs for SPC, 16 M-QTLs for SW, 17 M-QTLs for SY, 19 M-QTLs for GH and 24 M-QTLs for DFF. Also, 573 epistatic QTLs (E-QTLs) were detected with PVE ranging from 6.3 to 99.4% across traits and populations. Colocalization of M-QTLs and E-QTLs explained the genetic basis of the significant (P < 0.05) correlations of SPC with SW, SY, DFF and GH. The nature of genetic architecture of SPC and its relationship with agronomic traits suggest that genomics-assisted breeding targeting genome-wide variations would be effective for the simultaneous improvement of SPC and other important traits.en_US
dc.identifier.citationObala, J., Saxena, R. K., Singh, V. K., Kale, S. M., Garg, V., Kumar, C. S., ... & Varshney, R. K. (2020). Seed protein content and its relationships with agronomic traits in pigeonpea is controlled by both main and epistatic effects QTLs. Scientific reports, 10(1), 214. https://doi.org/10.1038/s41598-019-56903-zen_US
dc.identifier.urihttps://doi.org/10.1038/s41598-019-56903-z
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/9186
dc.language.isoenen_US
dc.publisherScientific reportsen_US
dc.subjectSeed proteinen_US
dc.subjectAgronomic traitsen_US
dc.subjectPigeonpeaen_US
dc.subjectEpistatic effects QTLsen_US
dc.titleSeed protein content and its relationships with agronomic traits in pigeonpea is controlled by both main and epistatic effects QTLsen_US
dc.typeArticleen_US
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