Genetic analysis of ear, husk, and tassel traits in tropical maize under diverse environments (Record no. 69198)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04211nab|a22005297a|4500 |
| 001 - CONTROL NUMBER | |
| control field | 69198 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20251222112732.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 20258s2025|||||sz ||p|op||||00||0|eng|dd |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| International Standard Serial Number | 1664-462X (Online) |
| 024 8# - OTHER STANDARD IDENTIFIER | |
| Standard number or code | https://doi.org/10.3389/fpls.2025.1618054 |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | MX-TxCIM |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Kosgei, T. |
| 9 (RLIN) | 17770 |
| 245 10 - TITLE STATEMENT | |
| Title | Genetic analysis of ear, husk, and tassel traits in tropical maize under diverse environments |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | Switzerland : |
| Name of publisher, distributor, etc. | Frontiers Media, |
| Date of publication, distribution, etc. | 2025. |
| 500 ## - GENERAL NOTE | |
| General note | Peer review |
| 500 ## - GENERAL NOTE | |
| General note | Open Access |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Grain yield (GY) in maize (Zea mays L.) is influenced by multiple component traits, with ear- and tassel-related traits playing a significant role. Despite their importance, these traits receive less emphasis in tropical maize breeding. This study aimed to: (i) assess the inheritance and heterosis of ear and tassel traits, and (ii) investigate their genetic correlation with GY. Thirty tropical maize inbred lines were used to develop 150 hybrids, which were evaluated under artificial Striga hermonthica infestation, managed drought stress, and rainfed conditions over two years. General (GCA) and specific (SCA) combining ability mean squares were significant (P< 0.05) for most traits, indicating the contribution of both additive and nonadditive gene action. GCA sums of squares predominated over SCA, suggesting that additive gene action controlled the inheritance of ear, husk, and tassel traits. Broad-sense heritability was high for husk (H-2 = 0.59-0.89), ear (H-2 = 0.71-0.93), and tassel (H-2 = 0.78-0.95) traits. Fifteen inbred lines exhibited significant positive GCA effects for ear traits, suggesting the presence of favorable alleles associated with increased ear length (ERL) and circumference (ERC). Additionally, 23 inbred lines exhibited favorable GCA effects for reduced tassel size. Mid-parent heterosis for ERL (41%) and ERC (22%) was greater under managed drought stress. Both ERL and ERC were strongly correlated with GY (r(g) = 0.58-0.96), suggesting their suitability for inclusion in a selection index. Path analysis identified ERL and ERC as having significant positive direct effects on GY, while ear aspect had a negative direct effect on GY across all conditions. Selection for ear and tassel traits in tropical maize is recommended to develop more efficient inbred lines for higher grain yield. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Text in English |
| 591 ## - CATALOGING NOTES | |
| Affiliation | Kosgei, T. : Not in IRS staff list but CIMMYT Affiliation |
| 591 ## - CATALOGING NOTES | |
| Affiliation | Mageto, E.K. : Not in IRS staff list but CIMMYT Affiliation |
| 591 ## - CATALOGING NOTES | |
| Affiliation | Ochieng, G.O. : Not in IRS staff list but CIMMYT Affiliation |
| 591 ## - CATALOGING NOTES | |
| Affiliation | Adhiambo, C. : Not in IRS staff list but CIMMYT Affiliation |
| 591 ## - CATALOGING NOTES | |
| Affiliation | Kimutai, J.J.C. : Not in IRS staff list but CIMMYT Affiliation |
| 591 ## - CATALOGING NOTES | |
| Affiliation | Kamau, R.M. : Not in IRS staff list but CIMMYT Affiliation |
| 597 ## - CGIAR Initiative | |
| Donor or Funder | Bill & Melinda Gates Foundation (BMGF) |
| -- | Stress Tolerant Maize for Africa (STMA) |
| -- | Foundation for Food & Agriculture Research (FFAR) |
| -- | United States Agency for International Development (USAID) |
| CGIAR Impact area | Nutrition, health & food security |
| CGIAR Initiative | Accelerated Breeding |
| -- | Plant Health |
| CGIAR Action areas | Resilient Agrifood Systems |
| CGSpace handle | https://hdl.handle.net/10568/178356 |
| Program & Accelerators | Breeding for Tomorrow |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Combining ability |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 2367 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Heritability |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1386 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Heterosis |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1145 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Path analysis |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 40318 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Striga hermonthica |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 6854 |
| 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 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Makumbi, D. |
| Miscellaneous information | Global Maize Program |
| Field link and sequence number | INT2765 |
| 9 (RLIN) | 858 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mageto, E.K. |
| 9 (RLIN) | 5413 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kavai, H.M. |
| Miscellaneous information | Global Maize Program |
| 9 (RLIN) | 38133 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ochieng, G.O. |
| 9 (RLIN) | 40319 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Adhiambo, C. |
| 9 (RLIN) | 18058 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Field link and sequence number | R1170605 |
| Personal name | Kasango, J.S. |
| Miscellaneous information | Genetic Resources Program |
| 9 (RLIN) | 28124 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kimutai, J.J.C. |
| 9 (RLIN) | 37011 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kamau, R.M. |
| 9 (RLIN) | 40320 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Julius Pyton Sserumaga |
| 9 (RLIN) | 709 |
| 773 0# - HOST ITEM ENTRY | |
| Title | Frontiers in Plant Science |
| Related parts | v. 16, art. 1618054 |
| Place, publisher, and date of publication | Switzerland : Frontiers Media, 2025. |
| International Standard Serial Number | 1664-462X |
| Record control number | 56875 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS | |
| Link text | Open Access through DSpace |
| Uniform Resource Identifier | https://hdl.handle.net/10883/35924 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Article |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Date last seen | Total Checkouts | Price effective from | Koha item type | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Withdrawn status | Home library | Current library | Date acquired |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 09/07/2025 | 09/07/2025 | Article | Not Lost | Dewey Decimal Classification | CIMMYT Staff Publications Collection | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Knowledge Center: John Woolston Library | 09/07/2025 |