Quantitative trait locus analysis for pod- and kernel-related traits in the cultivated peanut (Arachis hypogaea L.)

BMC Genetics
Weigang ChenHuifang Jiang

Abstract

The cultivated peanut (Arachis hypogaea L.) is an important oil and food crop in the world. Pod- and kernel-related traits are direct factors involved in determining the yield of the peanut. However, the genetic basis underlying pod- and kernel-related traits in the peanut remained largely unknown, which hampered the improvement of peanut through marker-assisted selection. To understand the genetic basis underlying pod- and kernel-related traits in the peanut and provide more useful information for marker-assisted breeding, we conducted quantitative trait locus (QTL) analysis for pod length and width and seed length and width by use of two F2:3 populations derived from cultivar Fuchuan Dahuasheng × ICG 6375 (FI population) and cultivar Xuhua 13 × cultivar Zhonghua 6 (XZ population) in this study. Two genetic maps containing 347 and 228 polymorphic markers were constructed for FI and XZ populations respectively. In total, 39 QTLs explaining 1.25-26.11% of the phenotypic variations were detected in two populations. For the FI population, 26 QTLs were detected between the two environments, among which twelve were not mapped before. For the XZ population, thirteen QTLs were detected, among which eight were not reported before. One ...Continue Reading

References

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Citations

Feb 22, 2017·Molecular Breeding : New Strategies in Plant Improvement·Yuning ChenHuifang Jiang
Jan 25, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Ziliang LuoJianping Wang
May 14, 2020·G3 : Genes - Genomes - Genetics·Carolina ChavarroPeggy Ozias-Akins
May 17, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Huaiyong LuoHuifang Jiang
Oct 11, 2019·Plant Breeding = Zeitschrift Für Pflanzenzüchtung·Haile DesmaeRajeev K Varshney
Oct 24, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Huaiyong LuoHuifang Jiang

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Methods Mentioned

BETA
PCR

Software Mentioned

SAS
QTL Cartographer
Joinmap
Joinmap Combine Groups

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