MARC details
| 000 -LEADER |
|---|
| fixed length control field |
04399nab|a22004577a|4500 |
| 001 - CONTROL NUMBER |
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| control field |
68629 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20251222083445.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
20252s2025||||mx |||p|op||||00||0|eng|d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
1471-2229 |
| 024 8# - OTHER STANDARD IDENTIFIER |
|---|
| Standard number or code |
https://doi.org/10.1186/s12870-025-06135-3 |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 100 0# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Kulai Amadu Manigben |
| 9 (RLIN) |
34317 |
| 245 10 - TITLE STATEMENT |
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| Title |
Genome-wide association mapping and genomic prediction analyses reveal the genetic architecture of grain yield and agronomic traits under drought and optimum conditions in maize |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Name of publisher, distributor, etc. |
BioMed Central Ltd., |
| Date of publication, distribution, etc. |
2025. |
| Place of publication, distribution, etc. |
United Kingdom : |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Peer review |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Open Access |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Background: Drought is a major abiotic stress in sub-Saharan Africa, impacting maize growth and development leading to severe yield loss. Drought tolerance is a complex trait regulated by multiple genes, making direct grain yield selection ineffective. To dissect the genetic architecture of grain yield and flowering traits under drought stress, a genome-wide association study (GWAS) was conducted on a panel of 236 maize lines testcrossed and evaluated under managed drought and optimal growing conditions in multiple environments using seven multi-locus GWAS models (mrMLM, FASTmrMLM, FASTmrEMMA, pLARmEB, pKWmEB, ISIS EM-BLASSO, and FARMCPU) from mrMLM and GAPIT R packages. Genomic prediction with RR-BLUP model was applied on BLUEs across locations under optimum and drought conditions. Results: A total of 172 stable and reliable quantitative trait nucleotides (QTNs) were identified, of which 77 are associated with GY, AD, SD, ASI, PH, EH, EPO and EPP under drought and 95 are linked to GY, AD, SD, ASI, PH, EH, EPO and EPP under optimal conditions. Among these QTNs, 17 QTNs explained over 10% of the phenotypic variation (R2 >= 10%). Furthermore, 43 candidate genes were discovered and annotated. Two major candidate genes, Zm00001eb041070 closely associated with grain yield near peak QTN, qGY_DS1.1 (S1_216149215) and Zm00001eb364110 closely related to anthesis-silking interval near peak QTN, qASI_DS8.2 (S8_167256316) were identified, encoding AP2-EREBP transcription factor 60 and TCP-transcription factor 20, respectively under drought stress. Haplo-pheno analysis identified superior haplotypes for qGY_DS1.1 (S1_216149215) associated with the higher grain yield under drought stress. Genomic prediction revealed moderate to high prediction accuracies under optimum and drought conditions. Conclusion: The lines carrying superior haplotypes can be used as potential donors in improving grain yield under drought stress. Integration of genomic selection with GWAS results leads not only to an increase in the prediction accuracy but also to validate the function of the identified candidate genes as well increase in the accumulation of favorable alleles with minor and major effects in elite breeding lines. This study provides valuable insight into the genetic architecture of grain yield and secondary traits under drought stress. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 591 ## - CATALOGING NOTES |
|---|
| Affiliation |
Kulai Amadu Manigben : Not in IRS staff list but CIMMYT Affiliation |
| 597 ## - CGIAR Initiative |
|---|
| Donor or Funder |
Bill & Melinda Gates Foundation (BMGF) |
| -- |
Foundation for Food & Agriculture Research (FFAR) |
| -- |
United States Agency for International Development (USAID) |
| Program & Accelerators |
Breeding for Tomorrow |
| CGSpace handle |
https://hdl.handle.net/10568/179114 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Maize |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1173 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Yields |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1313 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Drought |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1080 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Genome-wide association studies |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
31443 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Haplotypes |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
22051 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Forecasting |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
2701 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Beyene, Y. |
| Miscellaneous information |
Global Maize Program |
| Field link and sequence number |
INT2891 |
| 9 (RLIN) |
870 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Chaikam, V. |
| Miscellaneous information |
Global Maize Program |
| Field link and sequence number |
INT3356 |
| 9 (RLIN) |
936 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Tongoona, P.B. |
| Field link and sequence number |
001713456 |
| Miscellaneous information |
Formerly Excellence in Breeding |
| 9 (RLIN) |
340 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Danquah, E. |
| 9 (RLIN) |
6758 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Ifie, B.E. |
| 9 (RLIN) |
9175 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Burgueño, J. |
| Miscellaneous information |
Genetic Resources Program |
| Field link and sequence number |
INT3239 |
| 9 (RLIN) |
907 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Prasanna, B.M. |
| Miscellaneous information |
Global Maize Program |
| -- |
Borlaug Institute for South Asia |
| Field link and sequence number |
INT3057 |
| 9 (RLIN) |
887 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Gowda, M. |
| Miscellaneous information |
Global Maize Program |
| Field link and sequence number |
I1705963 |
| 9 (RLIN) |
795 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Title |
BMC Plant Biology |
| Related parts |
v. 25, no. 1, art. 135 |
| Place, publisher, and date of publication |
United Kingdom : BioMed Central Ltd, 2025. |
| International Standard Serial Number |
1471-2229 |
| Record control number |
G79387 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS |
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| Link text |
Open Access through DSpace |
| Uniform Resource Identifier |
https://hdl.handle.net/10883/35526 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Article |
| Suppress in OPAC |
No |
| Source of classification or shelving scheme |
Dewey Decimal Classification |