LCVD resistance breeding in heat tolerant bell pepper: Combined phenotypic and marker-assisted backcrossing for introgression of LCVD resistance from hot pepper

Sran, Tejpal Singh; Jindal, S. K.; Sharma, Abhishek; Bhatia, Dharminder

doi:10.1007/s10681-023-03182-5

Cited by 1 publication

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References 34 publications

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“…The stringent arti cial screening with viruliferous white ies in an insect-proof net house was performed (Fig. 1) for the foreground selection for LCVD-resistant gene positive plants in BC 1 F 1 population at seedling stage (Sran et al 2023a). From BC 1 F 1 populations, the selected plants Fig.…”

Section: Experimental Methodology Plant Materials and Breeding Approachmentioning

confidence: 99%

“…Due to their uniform performance, high yields, and disease tolerance against abiotic and biotic stresses, hybrids are more common than pure lines. In bell pepper the major constraint in production is the chilli/pepper leaf curl virus disease (ChiLCVD/PepLCVD) caused by begomovirus of the family Geminiviridae and transmitted by white y (Bemisia tabaci) (Sran et al 2023a). The most e cient and effective measure to control this disease is development of resistant cultivars through backcross breeding method.…”

Section: Introductionmentioning

confidence: 99%

“…1 F 1 generations(Sran et al 2023a). Hence, paired t-test analysis also dictates that there was no signi cance difference among the BC 2 F 1 populations and their respective recurrent parents for capsaicin content.…”

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Genetic diversity and recurrent parent phenome recovery assessment in six distinct populations with introgression of LCVD resistant gene from hot pepper to heat tolerant bell pepper

Jindal,

Sharma

et al. 2024

Preprint

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The development of resistant cultivars through backcross breeding is the most practical and efficient way to combat the disease. Resistance breeding for Capsicum species started in India in the late 1960s, however the majority of the screening work was done in open fields. Using marker-assisted, strict phenotypic selection and backcross breeding, we attempted, for the first time, to transfer the LCVD (Leaf Curl Virus Disease) resistant gene from the donor hot pepper parent S-343, a strong LCVD resistant line in India, into the genetic background of six heat-tolerant bell pepper inbreds, in limited generations, in order to develop new LCVD resistant lines in bell pepper. In current research it was observed that the recurring parent phenome (RPP) recovery is above 80% in all of the developed BC2F1 populations for all the studied attributes except for some characters such as fruit width (63.33%), number of fruits plant− 1 (76.32%) & 1000 seed dry weight (78.62%) in LCVRS3SM-8, and for capsaicin content (75%, in each) in LCVRS3SM-17 and LCVRS3SM-58. Likewise, paired t-test analysis also dictates that there was no significance difference among the BC2F1 populations and their respective recurrent parents for most of the attributes. The genetic diversity analysis revealed the supporting evidence for the effectiveness of stringent phenotypic selection for RPP recovery for most of the studied attributes as these traits exhibited high heritability coupled with high values of GCV and PCV along with high estimates of genetic advance and high genetic gain which suggests that these attributes were strongly influenced by additive gene action. LCVD resistant lines produced by this experiment will be used in future resistance breeding programmes for bell peppers.

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Section: Experimental Methodology Plant Materials and Breeding Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Genetic diversity and recurrent parent phenome recovery assessment in six distinct populations with introgression of LCVD resistant gene from hot pepper to heat tolerant bell pepper

Jindal,

Sharma

et al. 2024

Preprint

Self Cite

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show abstract

LCVD resistance breeding in heat tolerant bell pepper: Combined phenotypic and marker-assisted backcrossing for introgression of LCVD resistance from hot pepper

Cited by 1 publication

References 34 publications

Genetic diversity and recurrent parent phenome recovery assessment in six distinct populations with introgression of LCVD resistant gene from hot pepper to heat tolerant bell pepper

Genetic diversity and recurrent parent phenome recovery assessment in six distinct populations with introgression of LCVD resistant gene from hot pepper to heat tolerant bell pepper

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