Genetic Analysis of Performance of Maize Inbred Lines Under Drought Stress

2011 ◽  
Vol 25 (5) ◽  
pp. 521-539 ◽  
Author(s):  
Silvestro Kaka Meseka ◽  
Abebe Menkir ◽  
Sam Ajala
Keyword(s):  
Drought Stress ◽  
Genetic Analysis ◽  
Inbred Lines ◽  
Maize Inbred Lines ◽  
Analysis Of Performance

Identification of early-maturing maize inbred lines based on multiple traits under drought and low N environments for hybrid development and population improvement

2011 ◽  
Vol 91 (5) ◽  
pp. 931-942 ◽  
Author(s):  
B. Badu-Apraku ◽  
R. Akinwale
Keyword(s):  
Drought Stress ◽  
Inbred Lines ◽  
Limiting Factors ◽  
Multiple Traits ◽  
Maize Breeding ◽  
Maize Inbred Lines ◽  
Early Maturing ◽  
Population Improvement ◽  
Hybrid Development ◽  
Low Nitrogen

Badu-Apraku, B. and Akinwale, R. O. 2011. Identification of early-maturing maize inbred lines based on multiple traits under drought and low N environments for hybrid development and population improvement. Can. J. Plant Sci. 91: 931–942. Drought and low nitrogen stresses are major limiting factors to maize (Zea mays L.) production and productivity in West and Central Africa. Studies were conducted from 2007 to 2009 at three locations in Nigeria under induced drought stress and low nitrogen conditions. The objective was to identify superior inbred lines for use as parents for hybrid production and for introgression into maize breeding populations. The inbreds TZEI 17, TZEI 13, TZEI 23, TZEI 2, TZEI 3, TZEI 22, TZEI 7, TZEI 11, and TZEI 8 were identified as the most promising parents under drought stress. Under low N, TZEI 7, TZEI 11, TZEI 2, TZEI 4, TZEI 10, TZEI 8, and TZEI 22 were selected. TZEI 11, TZEI 2, TZEI 8, and TZEI 22 had combined tolerance to drought stress and low N and could be used as germplasm sources for introgression of tolerance genes as well as for the development of drought and/or low-N-tolerant hybrids. Under drought stress, TZEI 17, TZEI 3, TZEI 23, and TZEI 13 were the closest to the ideal genotype, while TZEI 7, TZEI 2, and TZEI 11 were the closest under low-N conditions.

Genetic analysis of drought tolerance in adapted × exotic crosses of maize inbred lines under managed stress conditions

Euphytica ◽  
2013 ◽  
Vol 196 (2) ◽  
pp. 261-270 ◽  
Author(s):  
M. A. Adebayo ◽  
A. Menkir ◽  
E. Blay ◽  
V. Gracen ◽  
E. Danquah ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Genetic Analysis ◽  
Inbred Lines ◽  
Stress Conditions ◽  
Maize Inbred Lines

Genome-wide transcriptome analysis of two maize inbred lines under drought stress

2009 ◽  
Vol 72 (4-5) ◽  
pp. 407-421 ◽  
Author(s):  
Jun Zheng ◽  
Junjie Fu ◽  
Mingyue Gou ◽  
Junling Huai ◽  
Yunjun Liu ◽  
...  
Keyword(s):  
Drought Stress ◽  
Transcriptome Analysis ◽  
Inbred Lines ◽  
Maize Inbred Lines ◽  
Genome Wide

Performance of Maize Inbred Lines and Their Hybrids Under Varying Drought Stress Conditions in Mali

2014 ◽  
Vol 3 (2) ◽  
pp. 17
Author(s):  
Coulibaly Mamadou Mory ◽  
Essie Blay ◽  
Vernon Gracen ◽  
The Charles ◽  
Niaba Teme
Keyword(s):  
Drought Stress ◽  
Inbred Lines ◽  
Stress Conditions ◽  
Maize Inbred Lines

Isaac-CACTA transposons: new genetic markers in maize and sorghum

Genome ◽  
2005 ◽  
Vol 48 (3) ◽  
pp. 455-460 ◽  
Author(s):  
Ju Kyong Lee ◽  
Soon-Jae Kwon ◽  
Kyong-Cheul Park ◽  
Nam-Soo Kim
Keyword(s):  
Genetic Analysis ◽  
Copy Number ◽  
Recombinant Inbred Lines ◽  
Dna Polymerases ◽  
Inbred Lines ◽  
Phylogenetic Clustering ◽  
Transposon Display ◽  
Plant Genomes ◽  
Genetic Segregation ◽  
Maize Inbred Lines

CACTA is an En/Spm transposon superfamily present in high copy number in plant genomes, and Isaac is a subfamily of the CACTA superfamily. The TIR sequence of the Isaac subfamily was used for the purpose of transposon display (TD) in maize and sorghum. The Isaac TD produced 50–80 amplified fragments, depending on the primer combination, and the amplification profile was highly polymorphic among maize inbred lines. Isaac TD-based phylogenetic clustering distinguished the maize inbred lines according to their lineages and was consistent with the results of phylogenetic reports derived from other marker techniques by others researchers. The Isaac TD profile proved to be highly reproducible with different brands of Taq DNA polymerases and thermocyclers. The Isaac TD was also applied to recombinant inbred lines to assess genetic segregation; we observed 40–50 recordable segregation markers, depending on the primer combination. These Isaac TD markers segregated mostly as dominant markers, although, in a few cases, non-parental bands were observed in the segregating populations. In addition, the Isaac TD was very successful in the amplification of sorghum accessions. Therefore, the Isaac TD may provide another useful protocol for genetic analysis in maize and sorghum.Key words: CACTA, Isaac, transposon display, maize, sorghum.

scholarly journals Combining ability of tropical maize inbred lines under drought stress conditions

2002 ◽  
Vol 2 (2) ◽  
pp. 291-298 ◽  
Author(s):  
G.F.O.M. Durães ◽  
P.C. Magalhães ◽  
A.C. Oliveira ◽  
M.X. Santos ◽  
E.E.G. Gomes ◽  
...  
Keyword(s):  
Drought Stress ◽  
Combining Ability ◽  
Inbred Lines ◽  
Stress Conditions ◽  
Tropical Maize ◽  
Maize Inbred Lines
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