|Table of Contents|

QTL MAPPING AND EPISTASIS ANALYSIS FOR P-EFFICIENCY IN SOYBEAN ［GLYCINE MAX(L.)］(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2007年04期
Page:
460-466
Research Field:
Publishing date:

Info

Title:
QTL MAPPING AND EPISTASIS ANALYSIS FOR P-EFFICIENCY IN SOYBEAN ［GLYCINE MAX(L.)］
Author(s):
GENG Lei-yue; CUI Shi-you; ZHANG Dan; XING Han; GAI Jun-yi; YU De-yue
Soybean Research Institute of Nanjing Agricultural University，National Center for Soybean Improvement，National Key Laboratory for Crop Genetics and Germplasm Enhancement，Nanjing 210095
Keywords:
Soybean; P-efficiency; RIL; QTL
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.04.003
Abstract:
Phosphorus(P)-efficiency is a complicated quantitative trait，and a number of genes take part in it.This study used the RIL (NJRIKY) derived from Kefeng-1×Nannong1138-2，to map the additive and epistatic QTL which affected P-efficiency and to understand the expressive difference of QTLs associated with P-efficiency under two P conditions.Five P-efficiency related traits were analysed，including shoot dry weight (SDW)，root dry weight (RDW)，root and shoot ratio (R/S)，P use efficiency (PUE) and P absorb efficiency (PAE).Three additive QTLs under high P level and twelve additive QTLs under low P level，were mapped respectively，with 4.0%~13.8% phenotypic variations explained.Epistasis analysis detected nineteen significant additive-by-additive QTLs，twelve under high P level，seven under low P level，with 3.3%~19.9% phenotypic variations explained.This QTL mapping result will provide an important cue to understand the genetic mechanism of P-efficiency in soybean.

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Last Update: 2014-10-20