Genome-Wide Association Study Reveals Marker–Trait Associations for Heat-Stress Tolerance in Sweet Corn DOI Creative Commons

Quannv Yang,

Zifeng Guo, Jianan Zhang

и другие.

Agronomy, Год журнала: 2024, Номер 14(9), С. 2171 - 2171

Опубликована: Сен. 23, 2024

Sweet corn (Zea mays var. rugosa Bonaf.) is a crop with high economic benefit in tropical and subtropical regions. Heat tolerance analysis heat-tolerant gene mining are of great significance for breeding heat-resistant varieties. By combining improved genotyping using targeted sequencing (GBTS) liquid chip (LC) technology, high-density marker array containing 40 K multiple single polynucleotide polymorphisms (mSNPs) was used to genotype 376 sweet inbred lines their heat-stress evaluated the spring summer 2019. In general, plant height, ear height number lateral branches at first level male flowers were reduced by 24.0%, 36.3%, 19.8%, respectively. High temperatures accelerated growth process corn, shortening days shedding pollen an average 21.6% compared spring. A genome-wide association study (GWAS) identified 85 significant SNPs distributed on 10 chromosomes. Phenotypes associated 21 15 loci, respectively, phenotypic differences between two seasons caused temperature change 49 SNP loci. The seed setting rate (SSR) more susceptible heat stress. An annotation six candidate genes, which either shock transcription factors (Hsfs) or proteins (Hsps) Arabidopsis rice (Oryza sativa), these genes directly indirectly involved response corn. current findings provide genetic resources improving molecular breeding.

Язык: Английский

Modeling QTL-by-environment interactions for multi-parent populations DOI Creative Commons
Wenhao Li, Martin P. Boer,

Ronny V.L. Joosen

и другие.

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Июль 31, 2024

Multi-parent populations (MPPs) are attractive for genetic and breeding studies because they combine diversity with an easy-to-control population structure. Most methods mapping QTLs in MPPs focus on the detection of single environments. Little attention has been given to multienvironment trials (METs) detecting modeling QTL-by-environment interactions (QEIs). We present mixed model approaches consistent versus environment-dependent QTLs, i.e., interaction (QEI). QTL effects assumed be normally distributed variances expressing consistency or dependence environments families. The entries corresponding design matrices functions identity-by-descent (IBD) probabilities between parents offspring follow from parental origin DNA. A polygenic effect is added models account background variation. illustrate wide applicability our method by analyzing several public MPP datasets observations METs. examples include diallel, nested association (NAM), multi-parent advanced inter-cross (MAGIC) populations. results approach compare favorably those previous that used tailored methods.

Язык: Английский

Процитировано

1
Mining of Oil Content Genes in Recombinant Maize Inbred Lines with Introgression from Temperate and Tropical Germplasm DOI Open Access

Mengfei Shi,

Jiachen Sun,

Fuyan Jiang

и другие.

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(19), С. 10813 - 10813

Опубликована: Окт. 8, 2024

The oil content of maize kernels is essential to determine its nutritional and economic value. A multiparent population (MPP) consisting five recombinant inbred line (RIL) subpopulations was developed elucidate the genetic basis total (TOC) in maize. MPP used subtropical lines CML312 CML384, along with tropical CML395, YML46, YML32 as female parents, Ye107 male parent. genome-wide association study (GWAS) performed using 429 RILs across three environments, employing 584,847 high-quality single nucleotide polymorphisms (SNPs). Furthermore, linkage analysis identify quantitative trait loci (QTL) linked TOC Through QTL mapping GWAS, 18 QTLs 60 SNPs that were significantly associated identified. Two novel candidate genes,

Язык: Английский

Процитировано

1
Identification and analysis of gibberellin 2-oxidase (GA2ox) members in Cunninghamia lanceolate and the negative regulatory character of ClGA2ox12 in tree stature and xylem lignin deposits DOI
Dan Peng,

Gaoyi Qu,

Haobo Li

и другие.

Industrial Crops and Products, Год журнала: 2024, Номер 221, С. 119407 - 119407

Опубликована: Авг. 13, 2024

Язык: Английский

Процитировано

0
Genome-Wide Association Study Reveals Marker–Trait Associations for Heat-Stress Tolerance in Sweet Corn DOI Creative Commons

Quannv Yang,

Zifeng Guo, Jianan Zhang

и другие.

Agronomy, Год журнала: 2024, Номер 14(9), С. 2171 - 2171

Опубликована: Сен. 23, 2024

Sweet corn (Zea mays var. rugosa Bonaf.) is a crop with high economic benefit in tropical and subtropical regions. Heat tolerance analysis heat-tolerant gene mining are of great significance for breeding heat-resistant varieties. By combining improved genotyping using targeted sequencing (GBTS) liquid chip (LC) technology, high-density marker array containing 40 K multiple single polynucleotide polymorphisms (mSNPs) was used to genotype 376 sweet inbred lines their heat-stress evaluated the spring summer 2019. In general, plant height, ear height number lateral branches at first level male flowers were reduced by 24.0%, 36.3%, 19.8%, respectively. High temperatures accelerated growth process corn, shortening days shedding pollen an average 21.6% compared spring. A genome-wide association study (GWAS) identified 85 significant SNPs distributed on 10 chromosomes. Phenotypes associated 21 15 loci, respectively, phenotypic differences between two seasons caused temperature change 49 SNP loci. The seed setting rate (SSR) more susceptible heat stress. An annotation six candidate genes, which either shock transcription factors (Hsfs) or proteins (Hsps) Arabidopsis rice (Oryza sativa), these genes directly indirectly involved response corn. current findings provide genetic resources improving molecular breeding.

Язык: Английский

Процитировано

0