Genetics of Lodging in Tolerance to Maize Stem Puncture

Feng, Guang; Liu, Zhifang; Li, Yanyan; Xing, Jinfeng; Huang, Changling

doi:10.3724/sp.j.1006.2009.02133

Cited by 7 publications

(6 citation statements)

References 2 publications

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“…Feng et al (2009) calculated the genetic model of RPR of the third internode above the ground in maize with six populations of different generations, including F 1 , F 2 , BC 1 , BC 2 , P 1 , and P 2 . Their results indicated that RPR is quantitative trait in nature and fits the model utilizing a pair of additive-dominance major genes plus an additive-dominance-epistasis polygene.…”

Section: Discussionmentioning

confidence: 99%

“…Feng et al (2009) fitted RPR to a model utilizing a pair of additive-dominance major genes plus an additive-dominance-epitasis polygene (D Model) with a six-generation maize population. Yao (2003) estimated that the general combining ability (GCA) and specific combining ability (SCA) could explain 48.7 and 51.3% of the genetic variance, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Identifying quantitative trait loci and determining closely related stalk traits for rind penetrometer resistance in a high-oil maize population

Meng

Wang

et al. 2012

Theor Appl Genet

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Stalk lodging in maize causes annual yield losses between 5 and 20% worldwide. Many studies have indicated that maize stalk strength significantly negatively correlates with lodging observed in the field. Rind penetrometer resistance (RPR) measurements can be used to effectively evaluate maize stalk strength, but little is known about the genetic basis of this parameter. The objective of this study was to explore a genetic model and detect quantitative trait loci (QTL) of RPR and determine relationships between RPR and other stalk traits, especially cell wall chemical components. RPR is quantitative trait in nature, and both additive and non-additive effects may be important to consider for the improvement of RPR. Nine additive-effect QTLs covering nine chromosomes, except chromosome 5, and one pair of epistatic QTLs were detected for RPR. CeSA11 involved in cellulose synthesis and colorless2 involved in lignin synthesis were identified as possible candidate genes for RPR. Internode diameter (InD), fresh weight of internode (FreW), dry weight of internode (DryW), fresh weight and dry weight as well as cell wall components per unit volume significantly positively correlated with RPR. The internode water content (InW) significantly negatively correlated with RPR. Notably, these traits significantly correlated with RPR, and the QTLs of these traits co-localized with those of RPR. The corresponding results obtained from correlation analysis and QTL mapping suggested the presence of pleitropism or linkage between genes and indicated that these different approaches may be used for cross authentication of relationships between different traits.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Identifying quantitative trait loci and determining closely related stalk traits for rind penetrometer resistance in a high-oil maize population

Meng

Wang

et al. 2012

Theor Appl Genet

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“…In preliminary studies, we observed that stalk lodging (i.e., breakage) accounted for more than 60% of lodging in maize at high plant density (Gou et al, 2010). Feng et al (2009) reported that mechanical strength of the third internode was representative of the stalk strength in maize. Therefore, many researchers are working to improve maize lodging resistance either by reducing the length of third basal internode or by increasing its diameter, DWUL, and RPS.…”

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confidence: 99%

How High Plant Density of Maize Affects Basal Internode Development and Strength Formation

et al. 2016

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High plant density of maize (Zea mays L.) reduces the stalk quality of the basal internodes and increases stalk lodging. The objective of this experiment was to explore the mechanism by which plant density influences basal internodes. The morphological, mechanical, anatomical, and biochemical characteristics of the third basal internode were compared at three plant densities. High plant density increased internode length due to an increase in the rate of rapid elongation. High plant density decreased the duration of internode thickening and dry matter accumulation, causing the diameter and dry weight per unit length to decline. However, rind penetration strength (RPS) did not increase rapidly until after the termination of rapid morphological growth. The mid‐to‐late stage of dry matter accumulation was critical for RPS formation. The rapid increase in RPS was closely related to cellulose and lignin accumulation. High plant density reduced the rates of cellulose and lignin accumulation, which was adverse to the formation of cortex tissue and RPS. High plant density caused rapid elongation, thickening, and structural carbohydrate accumulation to begin and end earlier. These results indicate that measures should be implemented as early as possible in the growing season to increase lodging resistance at high plant density of maize. These measures need to reduce the rate of rapid internode elongation and increase the rate of rapid cellulose and lignin accumulation.

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“…Stalk crushing strength (SCS) (Zuber and Grogan, 1961 ), stalk bending strength (SBS) (Sekhon et al, 2020 ), and rind penetrometer resistance (RPR) (Dudley, 1994 ; Liu et al, 2020 ) are three typical mechanical methods in the field and positively correlated with stalk lodging resistance. Among them, RPR overcomes the drawbacks of SCS and SBS, including increasing labor cost and destructing maize stalk (Robertson et al, 2017 ), and has been widely applied to crop genetic breeding (Albrecht and Dudley, 1987 ; Abedon et al, 1999 ; Hu et al, 2000 ; Feng et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

Characterization and Fine Mapping of qRPR1-3 and qRPR3-1, Two Major QTLs for Rind Penetrometer Resistance in Maize

et al. 2022

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Stalk strength is one of the most important traits in maize, which affects stalk lodging resistance and, consequently, maize harvestable yield. Rind penetrometer resistance (RPR) as an effective and reliable measurement for evaluating maize stalk strength is positively correlated with stalk lodging resistance. In this study, one F2 and three F2:3 populations derived from the cross of inbred lines 3705I (the low RPR line) and LH277 (the high RPR line) were constructed for mapping quantitative trait loci (QTL), conferring RPR in maize. Fourteen RPR QTLs were identified in four environments and explained the phenotypic variation of RPR from 4.14 to 15.89%. By using a sequential fine-mapping strategy based on the progeny test, two major QTLs, qRPR1-3 and qRPR3-1, were narrowed down to 4-Mb and 550-kb genomic interval, respectively. The quantitative real-time PCR (qRT-PCR) assay was adopted to identify 12 candidate genes responsible for QTL qRPR3-1. These findings should facilitate the identification of the polymorphism loci underlying QTL qRPR3-1 and molecular breeding for RPR in maize.

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Genetics of Lodging in Tolerance to Maize Stem Puncture

Cited by 7 publications

References 2 publications

Identifying quantitative trait loci and determining closely related stalk traits for rind penetrometer resistance in a high-oil maize population

Identifying quantitative trait loci and determining closely related stalk traits for rind penetrometer resistance in a high-oil maize population

How High Plant Density of Maize Affects Basal Internode Development and Strength Formation

Characterization and Fine Mapping of qRPR1-3 and qRPR3-1, Two Major QTLs for Rind Penetrometer Resistance in Maize

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