Mapping QTLs for Component Traits Influencing Drought Stress Tolerance of Maize (Zea mays L) in India

被引：8

作者：

Prasanna, B. M. ^{[1
]}

Beiki, A. H. ^{[1
]}

Sekhar, J. C. ^{[2
]}

Srinivas, A. ^{[3
]}

Ribaut, J-M ^{[4
]}

机构：

[1] Indian Agr Res Inst, Div Genet, New Delhi 110012, India

[2] ANGRAU Agr Res Stn, Karimnagar, Andhra Pradesh, India

[3] ARI, DMR Maize Winter Nursery, Hyderabad 500030, Andhra Pradesh, India

[4] CIMMYT, Mexico City 06600, DF, Mexico

来源：

JOURNAL OF PLANT BIOCHEMISTRY AND BIOTECHNOLOGY | 2009年 / 18卷 / 02期

关键词：

maize; QTL; RILs; drought stress; India; TROPICAL MAIZE; GENETIC-BASIS; YIELD; IDENTIFICATION; LOCI; SILKING;

D O I：

10.1007/BF03263313

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The present study was aimed at mapping of Quantitative Trait Loci (QTL) for various traits influencing the performance of maize genotypes under drought stress conditions in India. A set of 210 Recombinant Inbred Lines (RILs) developed at CIMMYT (Mexico) was analyzed in drought trials undertaken at Karimnagar (2002-03) and Hyderabad (2003-04). Analyses of the RIL datasets using Composite Interval Mapping (CIM) models led to the detection of 52 QTLs, including 22 QTLs under the control conditions and 30 QTLs under drought stress conditions at Karimnagar, and 14 QTLs influencing various characters under drought stress conditions at Hyderabad. A significant digenic epistatic OTL effect, other than the main effect QTLs, was detected for kernel number per ear under drought stress conditions. A comparison of the OTL information obtained from independent analyses of the Karimnagar and Hyderabad datasets revealed colocalization of QTLs on chromosomes 1, 2, 8 and 10 in the RILs influencing specific characters under drought stress conditions. Comparison of the OTL information with that reported from previous analyses of the same set of RILs at Mexico, Kenya and Zimbabwe revealed some 'consensus QTLs', which could be of significance in molecular marker-assisted breeding for drought tolerance in maize, besides functional genomics.

引用

页码：151 / 160

页数：10

共 35 条

[1] Mapping QTLs in breeding for drought tolerance in maize (Zea mays L) [J].

Agrama, HAS ;

Moussa, ME .

EUPHYTICA, 1996, 91 (01) :89-97

[2]

[Anonymous], 1997, Developing Drought and Low-N Tolerant Maize

[3]

Banziger M., 2000, BREEDING DROUGHT NIT

[4]

BANZIGER M, 2004, RESILIENT CROPS WATE, P237

[5] IDENTIFICATION OF QUANTITATIVE TRAIT LOCI USING A SMALL SAMPLE OF TOPCROSSED AND F4 PROGENY FROM MAIZE [J].

BEAVIS, WD ;

SMITH, OS ;

GRANT, D ;

FINCHER, R .

CROP SCIENCE, 1994, 34 (04) :882-896

[6]

Beavis William D., 1998, P145

[7] The importance of the anthesis-silking interval in breeding for drought tolerance in tropical maize [J].

Bolanos, J ;

Edmeades, GO .

FIELD CROPS RESEARCH, 1996, 48 (01) :65-80

[8] Molecular and physiological approaches to maize improvement for drought tolerance [J].

Bruce, WB ;

Edmeades, GO ;

Barker, TC .

JOURNAL OF EXPERIMENTAL BOTANY, 2002, 53 (366) :13-25

[9]

CHURCHILL GA, 1994, GENETICS, V138, P963

[10] Selection improves drought tolerance in tropical maize populations:: I.: Gains in biomass, grain yield, and harvest index [J].

Edmeades, GO ;

Bolaños, J ;

Chapman, SC ;

Lafitte, HR ;

Bänziger, M .

CROP SCIENCE, 1999, 39 (05) :1306-1315

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