QTL mapping and genetic analysis of inhibitory effect of lysine on post-germination growth and seedling establishment of maize

Anzala, Fabiola; Paven, M.-C. Mor re-Le; Birolleau-Touchard, C.; Giauffret, Catherine; Limami, Anis M.

doi:10.1556/aagr.54.2006.3.1

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…Germination is a complex quantitative trait that is regulated by a large number of genetic loci and is influenced by environmental factors. Quantitative trait locus mapping and genome-wide association study (GWAS) are two critical methods in quantitative genetics that are widely used to dissect the genetic architecture of seed germination in plants (Schaar et al, 1997;Anzala et al, 2006;Ikeda et al, 2009;Landjeva et al, 2010;Jiang et al, 2011;Xie et al, 2014). The Delay of Germination 1 (DOG1) gene is a critical regulator of seed dormancy and germination, and it was positionally cloned from Arabidopsis (Bentsink et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Studies Provide Insights Into the Genetic Architecture of Seed Germination Traits in Maize

Liang

Liu

et al. 2022

Front. Plant Sci.

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Seed germination is an important agronomic trait that affects crop yield and quality. Rapid and uniform seed germination traits are required in agricultural production. Although several genes are involved in seed germination and have been identified in Arabidopsis and rice, the genetic basis governing seed germination in maize remains unknown. Herein, we conducted a genome-wide association study to determine the genetic architecture of two germination traits, germination speed, and consistency, in a diverse panel. We genotyped 321 maize inbred populations with tropical, subtropical, or temperate origins using 1219401 single-nucleotide polymorphism markers. We identified 58 variants that were associated with the two traits, and 12 of these were shared between the two traits, indicating partial genetic similarity. Moreover, 36 candidate genes were involved in seed germination with functions including energy metabolism, signal transduction, and transcriptional regulation. We found that favorable variants had a greater effect on the tropical subpopulation than on the temperate. Accumulation of favorable variants shortened germination time and improved uniformity in maize inbred lines. These findings contribute significantly to understanding the genetic basis of maize seed germination and will contribute to the molecular breeding of maize seed germination.

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Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Studies Provide Insights Into the Genetic Architecture of Seed Germination Traits in Maize

Liang

Liu

et al. 2022

Front. Plant Sci.

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“…During the simulation of drought stress, different crops require PEG‐6000 solutions with different osmotic potentials; for example, wheat ( Triticum aestivum L.) requires −0.5 MPa (Jing & Chang, 2003), rapeseed ( Brassica napus L.) requires −0.7 MPa (Tan et al., 2017), and common bean requires −0.7 MPa (Li et al., 2013). With the development of molecular markers and high‐density linkage maps, previous studies have identified many quantitative trait loci (QTLs) associated with seed germination in rice ( Oryza sativa L.) (Jiang et al., 2011), wheat (Landjeva et al., 2010), Arabidopsis (VanderSchaar et al., 1997), maize ( Zea mays L.) (Anzala et al., 2006), soybean [ Glycine max (L.) Merr.] (Ikeda et al., 2009), Lactuca (Argyris et al., 2005), and rapeseed (Tan et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

Genome‐wide association analysis of drought resistance based on seed germination vigor and germination rate at the bud stage in common bean

Chang

Wang

et al. 2021

Agronomy Journal

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Common bean (Phaseolus vulgaris L.) is an important food legume. However, drought influences its entire growth and development process and can cause yield losses. The influence of drought stress is the most severe in the bud stage. The major objective of our study was to identify a series of loci involved in drought stress response in the bud stage using association analysis. In this study, 361 common bean germplasms were used to investigate germination vigour (GV) and germination rate (GR) under distilled water and drought stress conditions.The common beans showed large variations in GV and GR, with GV ranging from 6.67% to 100% and 0 to 73.33% and GR ranging from 66.67% to 100% and 0 to 100% in distilled water and under drought stress, respectively. A genome-wide association study (GWAS) of 361 accessions was conducted using 3724159 single nucleotide polymorphisms (SNPs) and revealed 2 and 11 candidate SNPs associated with relative germination rate (RGR) and relative germination vigour (RGV), respectively. Three loci were collocated with loci previously reported as being related to drought tolerance. A total of 180 candidate genes were identified, many of which were related to ion transport and oxidation-reduction reactions. A major haplotype for RGV was identified on chromosome 6. These results provide new insight into the This article is protected by copyright. All rights reserved.3 genetic basis of drought tolerance in common bean at the bud stage and provide candidate SNPs and genes that can be used to accelerate the drought tolerance improvement of common bean.

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Genome-wide association analysis of seed germination percentage and germination index in Brassica napus L. under salt and drought stresses

et al. 2017

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QTL mapping and genetic analysis of inhibitory effect of lysine on post-germination growth and seedling establishment of maize

Cited by 4 publications

References 18 publications

Genome-Wide Association Studies Provide Insights Into the Genetic Architecture of Seed Germination Traits in Maize

Genome-Wide Association Studies Provide Insights Into the Genetic Architecture of Seed Germination Traits in Maize

Genome‐wide association analysis of drought resistance based on seed germination vigor and germination rate at the bud stage in common bean

Genome-wide association analysis of seed germination percentage and germination index in Brassica napus L. under salt and drought stresses

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