The Identification of a Single-Base Mutation in the Maize Dwarf 1 Gene Responsible for Reduced Plant Height in the Mutant 16N125 DOI Creative Commons
Ping Wang,

Bingbing Liang,

Zhengjun Li

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(8), P. 1217 - 1217

Published: April 15, 2025

Maize (Zea mays L.) is a globally vital crop for food, feed, and biofuel production, with plant height (PH) being key agronomic trait that significantly influences yield, lodging resistance, stress tolerance. This study identified single-base mutation in the D1 (Dwarf 1) gene responsible dwarf phenotype maize mutant 16N125. Through genetic analysis fine mapping, candidate region was localized to chromosome 3, narrowing it down an interval containing three genes. Sequencing revealed non-synonymous D1, which encodes gibberellin 3-beta-dioxygenase, leading amino acid substitutions at positions 61 123. Genetic of F2 populations confirmed position trait. Furthermore, detected several Chinese inbred lines, indicating its potential role dwarfing under specific conditions. These findings provide critical insights into mechanisms regulating height, offering valuable information breeding programs focused on improving architecture yield address challenges global food security climate change.

Language: Английский

Adaptation of Diverse Maize Germplasm to Spring Season Conditions in Northeast China DOI Creative Commons
Yi Li, Zhiyuan Yang, Yong Shao

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(1), P. 170 - 170

Published: Jan. 12, 2025

Northeast China (NEC) is a major spring maize (Zea mays L.) growing belt, and the outputs substantially influence national grain production. However, yield per unit area has little changes in recent years, partially due to lack of elite germplasm resources innovation. Therefore, this study aimed determine performance diverse populations NEC propose appropriate strategies for utilization broaden genetic base Chinese germplasm. Fifteen from International Maize Wheat Improvement Center (CIMMYT) U.S. were crossed two local tester lines, representing heterotic groups Reid Lancaster, evaluating combining ability heterosis three locations (Gongzhuling, Jilin Province, Harbin Suihua, Heilongjiang Province) over years. The (BS13(S)C7 BS31) (Ji Syn A) exhibited more favorable alleles high potential all tested. Furthermore, PH6WC × BS31 Ji A crosses had higher yields, an number days silking, ear height, resistance lodging at Gongzhuling NEC. best utilizing these germplasms may be develop new inbred lines existing or improve line PH4CV broadening group Lancaster

Language: Английский

Citations

0
The Identification of a Single-Base Mutation in the Maize Dwarf 1 Gene Responsible for Reduced Plant Height in the Mutant 16N125 DOI Creative Commons
Ping Wang,

Bingbing Liang,

Zhengjun Li

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(8), P. 1217 - 1217

Published: April 15, 2025

Maize (Zea mays L.) is a globally vital crop for food, feed, and biofuel production, with plant height (PH) being key agronomic trait that significantly influences yield, lodging resistance, stress tolerance. This study identified single-base mutation in the D1 (Dwarf 1) gene responsible dwarf phenotype maize mutant 16N125. Through genetic analysis fine mapping, candidate region was localized to chromosome 3, narrowing it down an interval containing three genes. Sequencing revealed non-synonymous D1, which encodes gibberellin 3-beta-dioxygenase, leading amino acid substitutions at positions 61 123. Genetic of F2 populations confirmed position trait. Furthermore, detected several Chinese inbred lines, indicating its potential role dwarfing under specific conditions. These findings provide critical insights into mechanisms regulating height, offering valuable information breeding programs focused on improving architecture yield address challenges global food security climate change.

Language: Английский

Citations

0