Temperate testers’ efficiency in the screening of tropical and subtropical maize germplasm

Shiri, Mohammadreza; Choukan, R; Estakhr, A; Fareghi, Sharareh; Afarinesh, A

doi:10.1007/s42976-021-00141-5

Cited by 2 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on the data obtained from the diallel analysis, the biplot approach is used to estimate the general and speci c combining ability and identify potential heterotic relationships among different genotypes (Yan and Hunt, 2002). A high degree of heterosis occurs when the parents are genetically diverse or unrelated, resulting in a heterozygous combination in many genomic locations (Shiri et al 2021;Xiao et al 2021). The two advantages of the biplot compared to other methods to analyze diallel data are providing graphical data visualization and better data interpretability, which signi cantly increases understanding of data patterns.…”

Section: Introductionmentioning

confidence: 99%

Graphical estimation of genetic characteristics for maize inbred lines and selection of superior hybrids by genotype by yield*trait (GYT) biplot

Hosseini,

Shiri,

Mostafavi

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

This study aims to investigate (i) the genetic characteristics of nine maize inbred lines for the three traits namely grain moisture percent (GMP) at harvest time, days to physiological maturity (DPM), and grain yield (GY), (ii) the selection of superior hybrids based on the simultaneous selection of traits, and (iii) the ability of inbred lines to transfer genetic characteristics to the selected hybrids. Therefore, thirty-six hybrids resulting from their one-way diallel crosses were planted during the two crop years of 2020 and 2021 in a randomized complete block design with three replications. The genetic characteristics estimation and multiple trait selection were made by GGE biplot and GYT biplot procedure, respectively. Based on the results parents a, b, and h showed a negative general combining ability (GCA) and parent a showed the negative GCA. Moreover, parents a, b, and h exhibited a negative GCA positive could improve GMP, DPM, and GY, respectively, (ii) in the GYT biplot, yield-trait combinations indicated the most stable cultivars so that the crosses g×e and c×a were ranked as the best combination of GMP and DPM traits with grain yield, respectively and (iii) among the studied inbred lines, parent a had been able to transfer its desired characteristics such as earliness and high grain yield to its progeny. Applying biplot analyses to the multiple trait data revealed that The GYT biplot combines traits with yield and can facilitate the visual identification of the best genotypes.

show abstract

Section: Introductionmentioning

confidence: 99%

Graphical estimation of genetic characteristics for maize inbred lines and selection of superior hybrids by genotype by yield*trait (GYT) biplot

Hosseini,

Shiri,

Mostafavi

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Genetic analysis of popping quality traits and development of superior quality popcorn hybrids for a sustainable popcorn breeding program in India

Gopinath,

Hossain,

Zunjare

et al. 2024

J Sci Food Agric

View full text Add to dashboard Cite

BACKGROUNDPopcorn is the most popular specialty maize and it makes a significant contribution to the Indian and global economies. Despite perfect exploration of heterosis in field corn, progress in popcorn breeding remains constrained due to its narrow genetic base, leading to a significant dependence on imports. In this study, 15 landrace‐ and population‐derived inbreds from temperate and tropical germplasm were crossed with five testers, which are the parents of superior popcorn hybrids, in a line × tester mating design.RESULTSSignificant variation was observed in popping quality and agronomic traits among crosses evaluated across three locations representing diverse maize‐based agro‐climatic zones in India. Additive genetic variance governed the traits related to popping quality, whereas dominance variance was responsible for the agronomic traits. In addition to significant heterosis specific to certain traits, we identified promising crosses that exhibited superior performance in both popping quality and grain yield (GY). The genotype + genotype × environment (GGE) biplot methodology identified PMI‐PC‐104 and PMI‐PC‐101 as the best discriminating testers for popping quality traits and Dpcl‐15‐90 for GY. Lines PMI‐PC‐205, PMI‐PC‐207, and PMI‐PC‐209 were the best general combiners for popping quality traits and GY. The heterotic groups identified based on GGE‐biplots and the magnitude, direction and stability of combining ability effects would serve in the development of competitive popcorn hybrids for a sustainable popcorn market.CONCLUSIONUsing the additive nature of popping quality traits and the dominant nature of GY, recurrent intrapopulation selection can be employed to derive desirable popping quality inbreds with high GY for genetic enhancement. Desirable popping quality alleles from novel germplasm can thus be combined with high‐yielding domestic elite inbreds to establish a sustainable popcorn breeding program. © 2024 Society of Chemical Industry.

show abstract

Temperate testers’ efficiency in the screening of tropical and subtropical maize germplasm

Cited by 2 publications

References 20 publications

Graphical estimation of genetic characteristics for maize inbred lines and selection of superior hybrids by genotype by yield*trait (GYT) biplot

Graphical estimation of genetic characteristics for maize inbred lines and selection of superior hybrids by genotype by yield*trait (GYT) biplot

Genetic analysis of popping quality traits and development of superior quality popcorn hybrids for a sustainable popcorn breeding program in India

Contact Info

Product

Resources

About