Association mapping and genomic selection for sorghum adaptation to tropical soils of Brazil in a sorghum multiparental random mating population

Bernardino, Karine Costa; Menezes, C. B. de; Sousa, S. M. de; Guimarães, C. T.; Carneiro, Pedro Crescêncio Souza; Schaffert, R. E.; Kochian, Leon V.; Hufnagel, Bárbara; Pastina, Maria Marta; Magalhães, J. V. de

doi:10.1007/s00122-020-03697-8

Cited by 13 publications

(19 citation statements)

References 81 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Of several sources of genetic male sterility, the ms3 and ms7 alleles have been extensively used in population improvement programs worldwide due to their stability across environments (Bhola, 1982 , Reddy and Stenhouse, 1994 ; Murty and Rao, 1997 ). Of late, Bernardino et al ( 2021 ) reported that a multiparental random mating population in sorghum could be used to detect QTLs related to tropical soil adaptation, fine mapping of underlying genes, and genomic selection approaches. Keeping the advantages of the population breeding in bringing together the desirable alleles, we initiated a population breeding approach in 2000 and the two populations were developed, one for female parent (B line) development and another for male parent (R) development.…”

Section: Introductionmentioning

confidence: 99%

Development of Sorghum Genotypes for Improved Yield and Resistance to Grain Mold Using Population Breeding Approach

et al. 2021

View full text Add to dashboard Cite

The infection caused by grain mold in rainy season grown sorghum deteriorates the physical and chemical quality of the grain, which causes a reduction in grain size, blackening, and making them unfit for human consumption. Therefore, the breeding for grain mold resistance has become a necessity. Pedigree breeding has been widely used across the globe to tackle the problem of grain mold. In the present study, a population breeding approach was employed to develop genotypes resistant to grain mold. The complex genotype × environment interactions (GEIs) make the task of identifying stable grain mold-resistant lines with good grain yield (GY) challenging. In this study, the performance of the 33 population breeding derivatives selected from the four-location evaluation of 150 genotypes in 2017 was in turn evaluated over four locations during the rainy season of 2018. The Genotype plus genotype-by-environment interaction (GGE) biplot analysis was used to analyze a significant GEI observed for GY, grain mold resistance, and all other associated traits. For GY, the location explained a higher proportion of variation (51.7%) while genotype (G) × location (L) contributed to 21.9% and the genotype contributed to 11.2% of the total variation. For grain mold resistance, G × L contributed to a higher proportion of variation (30.7%). A graphical biplot approach helped in identifying promising genotypes for GY and grain mold resistance. Among the test locations, Dharwad was an ideal location for both GY and grain mold resistance. The test locations were partitioned into three clusters for GY and two clusters for grain mold resistance through a “which-won-where” study. Best genotypes in each of these clusters were selected. The breeding for a specific cluster is suggested. Genotype-by-trait biplots indicated that GY is influenced by flowering time, 100-grain weight (HGW), and plant height (PH), whereas grain mold resistance is influenced by glume coverage and PH. Because GY and grain mold score were independent of each other, there is a scope to improve both yield and resistance together.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of Sorghum Genotypes for Improved Yield and Resistance to Grain Mold Using Population Breeding Approach

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In the seedling stage is feasible to differentiate genotypes considering P acquisition efficiency, due to changes in root architecture and morphology under low-P (Sousa et al, 2012;Hufnagel et al, 2014;Bernardino et al, 2020Bernardino et al, , 2021. The use of appropriate phenotyping methods to analyze seedlings reduces cost and time in the selection of P-efficient genotypes (Van Eeuwijk et al, 2019).…”

Section: Sorghum Root System Phenotypingmentioning

confidence: 99%

“…A better understanding of how sorghum hybrids respond to P starvation is necessary to breed crops with enhanced P use efficiency traits (Hufnagel et al, 2014;Wen et al, 2019;Bernardino et al, 2020Bernardino et al, , 2021. Thus, this study aimed to identify and characterize hybrids regarding root traits related to P acquisition efficiency.…”

Section: Sorghum Root System Phenotypingmentioning

confidence: 99%

“…Abiotic stresses are a major constraint for agriculture, which includes nutrient deficiencies in soils. Lowphosphorus (P) availability in the soil is one of the most relevant factors limiting sorghum production (López-A better understanding of how sorghum hybrids respond to P starvation is necessary to breed crops with enhanced P use efficiency traits (Hufnagel et al, 2014;Wen et al, 2019;Bernardino et al, 2020Bernardino et al, , 2021. Thus, this study aimed to identify and characterize hybrids grown in hydroponics regarding biomass and root traits related to P acquisition efficiency.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sorghum hybrids grown in hydroponics contrast for phosphorus use efficiency

et al. 2024

View full text Add to dashboard Cite

Phosphorus (P) use efficiency is crucial for sorghum production. P acquisition efficiency is the most important component of P use efficiency. The early-stage evaluation of plant development is a useful tool for identifying P-efficient genotypes. This study aimed to identify sorghum hybrids that are efficient in P use efficiency and assess the genetic diversity among hybrids based on traits related to P acquisition efficiency. Thus, 38 sorghum hybrids and two inbred lines (checks) were evaluated under low and high P in a paper pouch system with nutrient solution. Biomass and root traits related to P efficiency were measured. There was no interaction between genotypes and P levels concerning all evaluated traits. The biomass and root traits, except root diameter, presented smaller means under low P than high P. Efficient and inefficient hybrids under each P level were identified. The genetic diversity assessment grouped these genotypes in different clusters. The hybrids AG1090, MSK326, AG1060, 1G100, AS 4639, DKB 540, and DKB 590 were superior under low-P and high-P. Hybrids SC121, 1236020 e 1167017 presented the lowest means than all other hybrids, under both conditions. The evaluated hybrids showed phenotypic diversity for traits related to P acquisition, such as root length and root surface area, which can be useful for establishing selection strategies for sorghum breeding programs and increasing P use efficiency.

show abstract

“…In its turn, significant work was conducted The genomic prediction approach has been undergoing constant adjustments over the years. Many efforts have been allocated to applying genomic prediction to several crops, such as maize (Dias et al, 2020;Beyene et al, 2019), wheat (Juliana et al, 2020), rice (Labroo et al, 2021b), and sorghum (Oliveira et al, 2018;Bernardino et al, 2021), and to define the best prediction models and approaches (Santos et al, 2015;Dias et al, 2018;Fristche-Neto et al, 2018).…”

Section: Genotype-by-environment Interaction In Sorghummentioning

confidence: 99%

Breeding Sorghum for Grain, Forage and Bioenergy in Brazil

Pinho¹,

SILV²,

Oliveira³

et al. 2022

RBMS

View full text Add to dashboard Cite

Sorghum is a versatile crop used for energy production, human and animal feedings, and raw material for industry. The grain sorghum is the fifth most important cereal worldwide, and Brazil is one of the top 10 sorghum producers. In the last 40 years, the sorghum grain yield in Brazil has increased to 32.70 kg ha-1 year -1. Although this clear evolution, much remains to be done, and sorghum breeders in Brazil still face several challenges. This review discusses the main characteristics of sorghum genetics and breeding, aiming for sorghum improvement for food, fodder, feed, and fuel uses. Herein will be highlighted essential topics related to the genetic control of the main interest traits; conventional sorghum breeding; the development of sorghum lines and hybrids; the use of male-sterility in sorghum breeding; the implication of genotypes-by-environments interaction in sorghum, the use of genome-wide association studies, and genomic prediction to maximize the efficiency of the sorghum breeding programs.

show abstract

Association mapping and genomic selection for sorghum adaptation to tropical soils of Brazil in a sorghum multiparental random mating population

Cited by 13 publications

References 81 publications

Development of Sorghum Genotypes for Improved Yield and Resistance to Grain Mold Using Population Breeding Approach

Development of Sorghum Genotypes for Improved Yield and Resistance to Grain Mold Using Population Breeding Approach

Sorghum hybrids grown in hydroponics contrast for phosphorus use efficiency

Breeding Sorghum for Grain, Forage and Bioenergy in Brazil

Contact Info

Product

Resources

About