Unveiling the heterosis pattern of modern maize breeding in Southwest China through population structure and genetic diversity analysis (Record no. 68753)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03530nab|a22005417a|4500 |
| 001 - CONTROL NUMBER | |
| control field | 68753 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20251223131109.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 20254s2025||||mx |||p|op||||00||0|eng|d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| International Standard Serial Number | 1471-2229 |
| 024 8# - OTHER STANDARD IDENTIFIER | |
| Standard number or code | https://doi.org/10.1186/s12870-025-06498-7 |
| 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 | Peng Ma |
| 9 (RLIN) | 19671 |
| 245 10 - TITLE STATEMENT | |
| Title | Unveiling the heterosis pattern of modern maize breeding in Southwest China through population structure and genetic diversity analysis |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | United Kingdom : |
| Name of publisher, distributor, etc. | BioMed Central Ltd,, |
| 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. | Maize (Zea mays L.) is an important food crop throughout the world and is also one of the earliest crops to use heterosis. In this study, we evaluated the genetic diversity, population structure, and selective sweep of 100 elite inbred maize lines collected from the current breeding program in Sichuan province, Southwest China, using 5,261,175 high-quality single nucleotide polymorphisms (SNPs). We discovered an abundance of genetic diversities and classified them into four groups. By combining kinship relationships, these groups were further divided into Tropic-local A, Improved-tropic, Tropic-local B, and Improved-local. Genomic differentiation was assessed using Fst values (0.21-0.44) as well as genetic diversity (pi = 6.07 x 10-4 - 6.61 x 10-4). We generated 900 (90 x 10) hybrids using 90 and 10 inbred maize lines from 100 diverse maize germplasms. All hybrids were evaluated for 10 traits in three replicate tests across two locations. We found that the patterns of G1 x G3, G1 x G4, G2 x G3, and G3 x G4 exhibited significant heterosis in yield-related traits and have been used in commercial breeding. In addition, we also explored the relationship between 10 traits of hybrid offspring and the number of heterozygous SNP. Under most heterosis modes, the best linear unbiased estimation (BLUE) value of the trait was highly consistent with the trend of deleterious SNPs, but there was a deviation in the G1 x G3 mode. Taken together, the results provide insight into the utilization of the current maize germplasm in Sichuan province to improve hybrid breeding. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Text in English |
| 597 ## - CGIAR Initiative | |
| Donor or Funder | China Agricultural Research System (CARS) |
| -- | Sichuan Provincial Science and Technology Program |
| Program & Accelerators | Breeding for Tomorrow |
| CGSpace handle | https://hdl.handle.net/10568/179257 |
| 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 | Breeding |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1029 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Single nucleotide polymorphisms |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 10805 |
| 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 | Heterosis |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 1145 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Genetic diversity (resource) |
| 9 (RLIN) | 2974 |
| Source of heading or term | AGROVOC |
| 651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME | |
| Geographic name | China |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 3990 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hua Zhang |
| 9 (RLIN) | 8153 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hongxia Shui |
| 9 (RLIN) | 38741 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Xuecai Zhang |
| Miscellaneous information | Global Maize Program |
| Field link and sequence number | INT3400 |
| 9 (RLIN) | 951 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Xiuquan Wang |
| 9 (RLIN) | 23623 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Shibin Gao |
| 9 (RLIN) | 8403 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Haiying Zhang |
| 9 (RLIN) | 19676 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zhi Nie |
| 9 (RLIN) | 38742 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chunyan Qing |
| 9 (RLIN) | 38743 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tingqi Lu |
| 9 (RLIN) | 23624 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Qihua Pang |
| 9 (RLIN) | 38744 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Wenzheng Pei |
| 9 (RLIN) | 38745 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hongmei Chen |
| 9 (RLIN) | 38746 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Chenyan He |
| 9 (RLIN) | 38747 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Bowen Luo |
| 9 (RLIN) | 19673 |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Dan He |
| 9 (RLIN) | 38748 |
| 773 0# - HOST ITEM ENTRY | |
| Title | BMC Plant Biology |
| Related parts | v. 25, no. 1, art. 477 |
| 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 | |
| Link text | Open Access through DSpace |
| Uniform Resource Identifier | https://hdl.handle.net/10883/35634 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 04/27/2025 | 04/27/2025 | Article | Not Lost | Dewey Decimal Classification | CIMMYT Staff Publications Collection | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Knowledge Center: John Woolston Library | 04/27/2025 |