QTL detection for drought tolerance in composite maize populations
The most significant QTLs for leaf ABA and root characteristics are shown to be on chromosomes 1 (bin 1.06) and 2 (bin 2.04). Assuming that the same QTLs could be present in different genotypes, the objective of this work was to ascertain if the QTLs with major effect detected i n one genotype could...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Serbian Association of Plant Breedings and Seed Producers
2006-01-01
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| Series: | Selekcija i Semenarstvo |
| Subjects: | |
| Online Access: | http://scindeks-clanci.ceon.rs/data/pdf/0354-5881/2006/0354-58810604049I.pdf |
| Summary: | The most significant QTLs for leaf ABA and root characteristics are shown to be on chromosomes 1 (bin 1.06) and 2 (bin 2.04). Assuming that the same QTLs could be present in different genotypes, the objective of this work was to ascertain if the QTLs with major effect detected i n one genotype could be detected in a different genetic background with different molecular markers of that chromosome region. Also, bulk segregant analysis (BSA) of 10 tolerant and 10 susceptible to drought maize populations was performed in order to confirm the potential of this approach in informative marker identification. Probes umc1601, umc1776, bnlg2248, dupSSR27 and bnlg2246 detected allele frequency differences between tolerant and susceptible populations of over 14%. It was also shown that BSA can identify informative molecular markers, although marker analysis of individual plants is necessary for final conclusion about linkage of the marker and the trait of interest. |
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| ISSN: | 0354-5881 2406-209X |