Genetic Variability and Heritability in Sugarcane

Chaudhary, Rewati R

doi:10.3126/narj.v4i0.4870

Cited by 38 publications

(59 citation statements)

References 2 publications

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“…Qualitative trait MTAs do have the advantage, as they show a lesser degree of missing heritability compared to that of markers associated with quantitative traits. A negative correlation between sucrose content and number of millable canes (NMCs) has been reported in previous studies (Chaudhary 2001). In this study, NMCs showed the highest GCV value which reinforced the strong potential of this trait for improvement through traditional breeding approaches.…”

Section: Discussionsupporting

confidence: 86%

“…In general, the converted score of qualitative traits showed no variation over the years indicating their stability and low environmental influence on the expression of these traits. Such low environmental influence has also been reported by Chaudhary (2001) and this could be attributed to strictly clonal multiplication of sugarcane. The phenotyping data of sugarcane varieties for nine quantitative traits revealed significant correlations among the traits like internode diameter, plant height and leaf blade width, which are significant contributors to the total cane yield.…”

Section: Discussionsupporting

confidence: 76%

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Identification of marker-trait associations for morphological descriptors and yield component traits in sugarcane

Siraree

Banerjee

Khan

et al. 2016

Physiol Mol Biol Plants

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Ninety two sugarcane varieties from sub-tropical India were subjected to molecular profiling with 174 simple sequence repeat markers and characterized for 23 qualitative (morphological descriptors) and nine quantitative traits that directly or indirectly contribute to yield and juice quality. Using STRUCTURE-based population stratification study and a mixed linear model for marker-trait association (MTA) analysis, a total of 60 MTAs were identified for 22 qualitative traits that were able to explain a significantly higher (up to 40%) proportion of the phenotypic variations compared to all the previous reports of MTA studies in sugarcane. In addition, 21 MTAs stable over the three years of study were also identified for nine quantitative traits that explained 16-37% of the total trait variation. It could be concluded that the qualitative traits that are governed mostly by one or a few genes are more responsive to MTA studies and hence have a better potential to be adopted in marker-assisted breeding programmes in sugarcane. The MTAs identified in this study could also find significant applications in upcoming more stringent IP regime, which may necessitate tracking of specific alleles integrated in breeding programmes.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionsupporting

confidence: 76%

Identification of marker-trait associations for morphological descriptors and yield component traits in sugarcane

Siraree

Banerjee

Khan

et al. 2016

Physiol Mol Biol Plants

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“…Traits exhibiting relatively high GCV estimates may respond favorably to selection. Reference [16] reported high GCV for single stalk weight and millable cane. Genotype × Environment (G × E) interactions are a serious concern in breeding programs as they affect selection decisions.…”

mentioning

confidence: 99%

Heritability and Correlation among Sugarcane (<i>Saccharum</i> spp.) Yield and Some Agronomic and Sugar Quality Traits in Ethiopia

Tena¹,

Mekbib²,

Ayana³

2016

AJPS

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To assess broad sense heritability and phenotypic and genetic correlations among sugarcane yield components, an experiment was conducted at Wonji and Metehara Sugar Estates of Sugar Corporation of Ethiopia during 2012/2013. High broad sense heritability (h 2 ) was detected for stalk diameter (0.730), single cane weight (0.672), millable cane number (0.624), stalk height (0.624) and pol % (0.608), indicating that these traits could be selected for easily. Expected genetic gain of the yield components was moderate to high. All traits had low to high genetic correlations (rg = −0.005 to 0.884) with cane yield and (rg = 0.027 to 0.999) with sugar yield. On average genetic correlations were higher than phenotypic correlations. High Genotypic Coefficient of Variation (GCV), broad sense heritability and expected genetic advance were recorded for stalk diameter, single cane weight and millable cane number. A selection strategy based on these traits could lead to improvement in cane and sugar yield.

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“…These results indicate that a negligible role was played by the environmental factors in the inheritance of these characters in sugarcane except in single stalk weight character. The high genotypic variance for number of millable cane and stalk length was reported also by (Chaudhary 2001). Singh et al (1996) obtained lowest estimates of cane diameter.…”

Section: I-variability In Traits Of Studied Germplasm 1-genotypic Andmentioning

confidence: 82%

Variability, Heritability and Flowering Ability of some Sugarcane Germplasm

Ghallab¹,

Ghonema²,

Salem

2018

Alexandria Science Exchange Journal An International Quarterly

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Four experiments were conducted at El-Sabahia (31°, 12N latitude), Alexandria, Egypt Sugar Cane Research Station to estimate the variability, heritability and flowering ability of eighty eight sugar cane germplasm. All experiments were planted in mid-March 2013 and their design was randomized complete block with three replicates. Variability in important traits among tested germplasm was estimated using genotypic and phenotypic variance in addition to genotypic and phenotypic coefficients and broad sense heritability. Flowering ability was determined using the number and percentage variation of flowering germplasm and flowering dates. The results showed that the magnitude of genotypic and environmental variance was the highest in number of millable cane character and the minimum value was found in stalk diameter in plant crop and both ratoon crops. Maximum genotypic and phenotypic coefficients of variation were exhibited by cane yield and number of millable cane in plant and both ratoon crops, also in single stalk weight and sugar yield in both ration crops. Among quality characters lowest values for both coefficients were obtained by purity percent in plant and both ratoon crops. In the present experiment, moderate to high heritability estimates were observed for all characters. The results indicated that the selection is more effective in plant and both ratoon crops based on yield contributing characters having high PCV, GCV and heritability along with suitable mean value. The flowering occurred in most of studied germplasm under natural environment in El-Sabahia area but the percentage of flowered germplasm differed among studied seasons. The flowering in sugarcane germplasm commenced from November and ended up to June. Most of the germplasm flowered during December at the three seasons and followed by February at plant crop, January and February at first ratoon crop and January and March at second ratoon crop. The tested germplasm were divided into 8 groups according to their flower ability.

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Genetic Variability and Heritability in Sugarcane

Cited by 38 publications

References 2 publications

Identification of marker-trait associations for morphological descriptors and yield component traits in sugarcane

Identification of marker-trait associations for morphological descriptors and yield component traits in sugarcane

Heritability and Correlation among Sugarcane (<i>Saccharum</i> spp.) Yield and Some Agronomic and Sugar Quality Traits in Ethiopia

Variability, Heritability and Flowering Ability of some Sugarcane Germplasm

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Genetic Variability and Heritability in Sugarcane

Cited by 38 publications

References 2 publications

Identification of marker-trait associations for morphological descriptors and yield component traits in sugarcane

Identification of marker-trait associations for morphological descriptors and yield component traits in sugarcane

Heritability and Correlation among Sugarcane (&lt;i&gt;Saccharum&lt;/i&gt; spp.) Yield and Some Agronomic and Sugar Quality Traits in Ethiopia

Variability, Heritability and Flowering Ability of some Sugarcane Germplasm

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Heritability and Correlation among Sugarcane (<i>Saccharum</i> spp.) Yield and Some Agronomic and Sugar Quality Traits in Ethiopia