QTL mapping of phosphorus deficiency tolerance in soybean (Glycine max L. Merr.)

Yi Dan Li, Yong Jun Wang, Yi Ping Tong, Ji Guo Gao, Jin Song Zhang, Shou Yi Chen

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

Phosphorus (P) deficiency is a major abiotic stress that limits plant growth and crop productivity throughout the world. In the present study, 184 recombinant inbred line (RIL) families developed from soybean varieties Kefeng No. 1 and Nanong 1138-2 were used to identify quantitative trait loci (QTL) associated with P deficiency tolerance. Seven traits of plant height (HT), weight of fresh shoot (FSW), weight of fresh root (FRW), weight of dry root (DRW), length of main root (RL), phosphorus content in leaf (LP), phosphorus content in root (RP), were used as parameters to assess the phosphorus deficiency tolerance. The QTL mapping for the seven traits was performed using the program WinQTLCart. Seven QTLs were detected and mapped on two linkage groups for three traits of weight of fresh shoot, phosphorus contents in leaf and in root. The QTLs that had LOD scores more than three were detected for all of the three traits above. Most of the QTLs explained more than 10% of the total variation. The two QTLs for phosphorus content in leaf explained more than 20% of the total variation, respectively. Five QTLs were mapped on linkage group F2, and two on linkage F1. It was suggested that the genes related to phosphorus deficiency tolerance located on linkage group F in soybean.

Original languageEnglish (US)
Pages (from-to)137-142
Number of pages6
JournalEuphytica
Volume142
Issue number1-2
DOIs
StatePublished - Jan 2005

Keywords

  • Phosphorus deficiency tolerance
  • QTL
  • Soybean

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Plant Science
  • Horticulture

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