Scientia Agricultura Sinica ›› 2005, Vol. 38 ›› Issue (05): 882-890 .

• CROP GENETICS & BREEDING·GERMPLASM RESOURCES • Previous Articles     Next Articles

Consensus Map of the QTL Relevant to Drought Tolerance of Maize Under Drought Conditions

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  1. 中国农业科学院作物育种栽培研究所
  • Received:2004-06-23 Revised:1900-01-01 Online:2005-05-10 Published:2005-05-10

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Abstract: Discovery of drought tolerant genes and their closely linked markers could provide useful information for setting molecular breeding strategy. In this paper, QTL relevant to drought tolerance in maize genomic database were explored, and the consensus map was constructed with the aid of high-density linkage map IBM and the adjacent markers to each QTL. Consequently, a total of 181 QTL involving in the expression of 9 morhpho-physiological traits in 10 mapping populations of maize under drought conditions were screened out. The length of the consensus map constructed was 3582.1cM. Furthermore, 15 "universal drought tolerance QTL" and their linked markers were identified. The results will facilitate to determine the genetic loci and molecular marker-assisted selection strategy for drought tolerance in maize.

Key words: Maize (Zea mays L.), Drought, QTL for drought tolerance, Consensus map

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