Nature Plants, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 12, 2024
Language: Английский
Science, Journal Year: 2023, Volume and Issue: 382(6674)
Published: Nov. 30, 2023
The origins of maize were the topic vigorous debate for nearly a century, but neither current genetic model nor earlier archaeological models account totality available data, and recent work has highlighted potential contribution wild relative, Zea mays ssp. mexicana . Our population analysis reveals that origin modern can be traced to an admixture between ancient in highlands Mexico some 4000 years after domestication began. We show variation is key component diversity, both at individual loci additive underlying agronomic traits. results clarify raise new questions about anthropogenic mechanisms dispersal throughout Americas.
Language: Английский
Citations
60
Nature Genetics, Journal Year: 2023, Volume and Issue: 55(10), P. 1745 - 1756
Published: Sept. 7, 2023
Abstract Exploitation of crop heterosis is crucial for increasing global agriculture production. However, the quantitative genomic analysis was lacking, and there currently no effective prediction tool to optimize cross-combinations. Here 2,839 rice hybrid cultivars 9,839 segregation individuals were resequenced phenotyped. Our findings demonstrated that indica – hybrid-improving breeding a process broadened genetic resources, pyramided breeding-favorable alleles through combinatorial selection collaboratively improved both parents by eliminating inferior at negative dominant loci. Furthermore, we revealed widespread complementarity contributed japonica intersubspecific in yield traits, with dominance effect loci making greater contribution phenotypic variance than overdominance On basis comprehensive dataset, model applicable diverse varieties developed optimized predict performance combinations. data offer valuable resource advancing understanding facilitating utilization rice.
Language: Английский
Citations
37
The Plant Journal, Journal Year: 2023, Volume and Issue: 113(6), P. 1109 - 1121
Published: Jan. 27, 2023
SUMMARY Maize ( Zea mays ssp. ) populations exhibit vast ranges of genetic and phenotypic diversity. As sequencing costs have declined, an increasing number projects sought to measure differences between within maize using whole‐genome resequencing strategies, identifying millions segregating single‐nucleotide polymorphisms (SNPs) insertions/deletions (InDels). Unlike older genotyping strategies like microarrays by sequencing, should, in principle, frequently identify score common variants. However, practice, different employ analytical pipelines, often reference genome assemblies consistently filter for minor allele frequency the study population. This constrains potential reuse remix data on diversity generated from address new biological questions ways. Here, we 1276 previously published samples 239 newly resequenced generate a single unified marker set approximately 366 million variants 46 high‐confidence scored across crop wild relatives, landraces as well tropical temperate lines breeding eras. We demonstrate that variant provides increased power known causal flowering‐time genes trait sets, track changes functionally distinct alleles global distribution modern maize.
Language: Английский
Citations
29
The Crop Journal, Journal Year: 2023, Volume and Issue: 11(4), P. 1001 - 1010
Published: Jan. 21, 2023
Maize (Zea mays L.) is a global cereal crop whose demand projected to double by 2050. Along with worsening of farmland salinization, salt stress has become major environmental threat the sustainability maize production worldwide. Accordingly, there an urgent need decipher salt-tolerant mechanisms and facilitate breeding maize. As tolerance complex trait regulated multiple genes, germplasm varies widely in tolerance, efforts have been devoted identification application quantitative-trait loci (QTL) for tolerance. QTL associated ion regulation, osmotic other aspects discovered using genome-wide association studies (GWAS), linkage mapping, omics-based approaches. This review highlights recent advances molecular-level understanding response maize, particular (a) discovery salt-tolerance QTL, (b) (c) development cultivars, (d) current challenges future prospects.
Language: Английский
Citations
27
Journal of Integrative Plant Biology, Journal Year: 2023, Volume and Issue: 66(5), P. 849 - 864
Published: Dec. 22, 2023
Maize is a major staple crop widely used as food, animal feed, and raw materials in industrial production. High-density planting factor contributing to the continuous increase of maize yield. However, high density usually triggers shade avoidance response causes increased plant height ear height, resulting lodging yield loss. Reduced more erect leaf angle, reduced tassel branch number, earlier flowering, strong root system architecture are five key morphological traits required for adaption high-density planting. In this review, we summarize recent advances deciphering genetic molecular mechanisms involved We also discuss some strategies breeding advanced cultivars with superior performance under conditions.
Language: Английский
Citations
26
The Plant Journal, Journal Year: 2023, Volume and Issue: 117(1), P. 23 - 32
Published: Nov. 16, 2023
SUMMARY Heterosis, also known as hybrid vigor, is the phenomenon wherein a progeny exhibits superior traits relative to one or both parents. In terms of crop breeding, this usually refers yield advantage F 1 hybrids over inbred The development high‐yielding cultivars across wider range crops key meeting future food demands. However, conventional breeding strategies are proving be exceptionally challenging apply commercially in many self‐pollinating crops, particularly wheat and barley. Currently these performance line does not outweigh cost seed production. Here, we review genetic basis heterosis, discuss challenges propose strategy recruit multiple heterosis‐associated genes develop lines with improved agronomic characteristics. This leverages modern engineering tools synthesize supergenes by fusing heterotic alleles loci. We outline plan assess feasibility approach improve using barley ( Hordeum vulgare ) model species, few genes. proposed method can applied all for which gene combinations identified.
Language: Английский
Citations
25
Nature Genetics, Journal Year: 2024, Volume and Issue: 56(6), P. 1245 - 1256
Published: May 22, 2024
Language: Английский
Citations
12
iScience, Journal Year: 2024, Volume and Issue: 27(2), P. 108901 - 108901
Published: Jan. 31, 2024
Heterosis, a universal phenomenon in nature, mainly reflected the superior productivity, quality, and fitness of F
Language: Английский
Citations
6
Trends in Plant Science, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 1, 2024
Heterosis describes the superior performance of hybrid plants compared with their genetically distinct parents and is a pillar global food security. Here we review current status molecular dissection heterosis. We discuss how extensive intraspecific structural genomic variation between parental genotypes leads to heterosis by genetic complementation in hybrids. Moreover, survey gene expression contributes hundreds additionally active genes hybrids overdominant single mediate several species. Furthermore, highlight prominent role microbiome improving Taken together, understanding will pave way accelerate productivity more sustainable agriculture.
Language: Английский
Citations
6
Plant Cell & Environment, Journal Year: 2023, Volume and Issue: 46(6), P. 1860 - 1872
Published: Feb. 14, 2023
Abstract Drought stress is a central environmental factor that severely limits maize production worldwide. Root architecture plays an important role in drought tolerance and can be targeted breeding programmes. Here, we conducted phenotyping of root under different water treatments for 373 inbred lines, representative germplasm from both China the United States eras. We found seminal length response to experienced convergent increase during countries. Using genome‐wide association study, identified total 221 associated loci underlying 13 traits well‐watered water‐stressed conditions. These harboured many reported root‐ abiotic stress‐related genes. Furthermore, 75 strong candidate genes were prioritised by integrating with differentially expressed root. One high‐confidence genes, ZmCIPK3 was functionally characterised probably enhancing through regulating growth. This study provides valuable information genetic improvement maize.
Language: Английский
Citations
15