Wheat genomic study for genetic improvement of traits in China

Science China Life Sciences, Год журнала: 2022, Номер 65(9), С. 1718 - 1775

Опубликована: Авг. 24, 2022

Язык: Английский

---

Systematic identification of wheat spike developmental regulators by integrated multi-omics, transcriptional network, GWAS, and genetic analyses

Molecular Plant, Год журнала: 2024, Номер 17(3), С. 438 - 459

Опубликована: Фев. 2, 2024

Язык: Английский

---

A ‘wiring diagram’ for sink strength traits impacting wheat yield potential

Journal of Experimental Botany, Год журнала: 2022, Номер 74(1), С. 40 - 71

Опубликована: Ноя. 5, 2022

Identifying traits for improving sink strength is a bottleneck to increasing wheat yield. The interacting processes determining and yield potential are reviewed visualized in set of 'wiring diagrams', covering critical phases development (and summarizing known underlying genetics). Using this framework, we assembled the main identified research gaps hypotheses be tested achieving gains strength. In pre-anthesis, grain number could increased through: (i) enhanced spike growth associated with optimized floret and/or reduction specific stem-internode lengths (ii) improved fruiting efficiency through an accelerated rate development, partitioning between spikes, or cytokinin levels. post-anthesis, grain, augmented manipulation size via ovary endosperm cell division expansion. Prospects vascular architecture support all rapidly growing florets, enabling flow assimilate, also discussed. Finally, considered prospects enhancing weight realization relation genetic variation stay-green as well stem carbohydrate remobilization. wiring diagrams provide workspace breeders crop scientists achieve other field crops.

Язык: Английский

---

Wheat plant height locus RHT25 encodes a PLATZ transcription factor that interacts with DELLA (RHT1)

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(19)

Опубликована: Май 1, 2023

Plant height is an important agronomic trait with a significant impact on grain yield, as demonstrated by the positive effect of REDUCED HEIGHT (RHT) dwarfing alleles (Rht1b) lodging and harvest index in "Green Revolution" wheat varieties. However, these gibberellic acid (GA)-insensitive also reduce coleoptile length, biomass production, yield potential some environments, triggering search for alternative GA-sensitive genes. Here we report identification, validation, characterization gene underlying locus RHT25 wheat. This gene, designated PLATZ-A1 (TraesCS6A02G156600), expressed mainly elongating stem developing spike encodes plant-specific AT-rich sequence- zinc-binding protein (PLATZ). Natural induced loss-of-function mutations plant its overexpression increases height, demonstrating that causative RHT25. RHT1 show genetic interaction their encoded proteins interact each other yeast protoplasts. These results suggest PLATZ1 can modulate DELLA height. We identified four natural truncation one promoter insertion are more frequent modern varieties than landraces, suggesting selection during breeding. be used to fine-tune and, combination genes, replace GA-insensitive Rht1b improvements beyond those Green Revolution

Язык: Английский

---

The F-box protein UFO controls flower development by redirecting the master transcription factor LEAFY to new cis-elements

Nature Plants, Год журнала: 2023, Номер 9(2), С. 315 - 329

Опубликована: Фев. 2, 2023

Язык: Английский

---

Spatial and single-cell expression analyses reveal complex expression domains in early wheat spike development

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Фев. 19, 2025

ABSTRACT Wheat is an important crop for global food security and a better understanding of the molecular mechanisms driving spike spikelet development can inform engineering more productive varieties. In this study, we integrated single-molecule fluorescence in situ hybridization (smFISH) single-cell RNA sequencing (scRNA-seq) to generate atlas cell types expression domains during early stages wheat development. We characterized spatiotemporal 99 genes by smFISH 48,225 cells at transition (W1.5), late double ridge (W2.5) lemma primordia (W3.25) stages. These were clustered into 21 different domains, including four beneath developing spikelets three meristematic regions, which consistent across sections. also identified differentially expressed inflorescence meristem terminal spikelet. The study was complemented scRNA-seq profiling 26,009 from W2.5 W3.25 that 23 distinct types. annotated clusters as meristem, boundary cortex, central spike, epidermis, vasculature using known markers, co-expression analysis selected correlation matrices both studies. data uncovered associated with TCP24 FZP , well AGL6 ULT1. studies provided complementary tools characterizing gene networks regulate development, supporting functional characterization key regulatory genes, informing spikes.

Язык: Английский

---

Deciphering spike architecture formation towards yield improvement in wheat

Journal of genetics and genomics/Journal of Genetics and Genomics, Год журнала: 2023, Номер 50(11), С. 835 - 845

Опубликована: Март 11, 2023

Wheat is the most widely grown crop globally, providing 20% of daily consumed calories and protein content around world. With growing global population frequent occurrence extreme weather caused by climate change, ensuring adequate wheat production essential for food security. The architecture inflorescence plays a crucial role in determining grain number size, which key trait improving yield. Recent advances genomics gene cloning techniques have improved our understanding spike development its applications breeding practices. Here, we summarize genetic regulation network governing formation, strategies used identifying studying factors affecting architecture, progress made applications. Additionally, highlight future directions that will aid regulatory mechanistic study determination targeted yield improvement.

Язык: Английский

---

Pre-anthesis spike growth dynamics and its association to yield components among elite bread wheat cultivars (Triticum aestivum L. spp.) under Mediterranean climate

Field Crops Research, Год журнала: 2023, Номер 298, С. 108948 - 108948

Опубликована: Май 8, 2023

Язык: Английский

---

A high-resolution genotype–phenotype map identifies the TaSPL17 controlling grain number and size in wheat

Genome biology, Год журнала: 2023, Номер 24(1)

Опубликована: Авг. 28, 2023

Large-scale genotype-phenotype association studies of crop germplasm are important for identifying alleles associated with favorable traits. The limited number single-nucleotide polymorphisms (SNPs) in most wheat genome-wide (GWASs) restricts their power to detect marker-trait associations. Additionally, only a few genes regulating grain per spikelet have been reported due sensitivity this trait variable environments.We perform large-scale GWAS using approximately 40 million filtered SNPs 27 spike morphology We 132,086 significant associations and the SNP markers located within 590 peaks. additional stronger peaks by dividing into sub-traits relative results propose that genetic dissection is powerful strategy signals yield traits wheat. reveal TaSPL17 positively controls size floret meristem development, which turn leads enhanced plant. haplotypes at indicate geographical differentiation, domestication effects, breeding selection.Our study provides valuable resources improvement fast-forward solution candidate gene detection cloning

Язык: Английский

---

Photoperiod-1 regulates the wheat inflorescence transcriptome to influence spikelet architecture and flowering time

Current Biology, Год журнала: 2024, Номер 34(11), С. 2330 - 2343.e4

Опубликована: Май 22, 2024

Photoperiod insensitivity has been selected by breeders to help adapt crops diverse environments and farming practices. In wheat, insensitive alleles of Photoperiod-1 (Ppd-1) relieve the requirement long daylengths flower promoting expression floral genes early in season; however, these also limit yield reducing number fertility grain-producing florets through processes that are poorly understood. Here, we performed transcriptome analysis developing inflorescence using near-isogenic lines contain either photoperiod-insensitive or null Ppd-1, during stages when spikelet is determined floret development initiates. We report Ppd-1 influences stage-specific with roles auxin signaling, meristem identity, protein turnover, differentially expressed transcripts identified bZIP ALOG transcription factors, namely PDB1 ALOG1, which regulate flowering time architecture. These findings enhance our understanding introduce new targets for improving potential.

Язык: Английский

---