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Genetic analysis of resistance to watermelon bud necrosis orthotospovirus in watermelon [Citrullus lanatus (Thunb.) Matsum & Nakai]

An experiment was conducted to study the genetics and nature of gene action of resistance to watermelon bud necrosis orthotospovirus (WBNV) in watermelon. The experimental materials comprised of two resistant (BIL‐53 and IIHR‐19) and one susceptible (IIHR‐140) parents. Each of the resistant parents...

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Published in:Plant breeding 2018-10, Vol.137 (5), p.814-822
Main Authors: Nagesh, Gandlahally Chennappa, Rao, Eguru Sreenivasa, Pitchaimuthu, Mottaiyan, Varalakshmi, Budhavaram, Lakshmana Reddy, Dhoranalapalli Chinnappareddy, Samuel, Duleep Kumar, Rekha, Ajithakumar, Krishna Reddy, Manem, Havey, Michael
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cited_by cdi_FETCH-LOGICAL-c2979-add733907e7d16f35d942ceff9f19fd59447d0ac3318c9797683ae260d33609f3
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container_title Plant breeding
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creator Nagesh, Gandlahally Chennappa
Rao, Eguru Sreenivasa
Pitchaimuthu, Mottaiyan
Varalakshmi, Budhavaram
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Samuel, Duleep Kumar
Rekha, Ajithakumar
Krishna Reddy, Manem
Havey, Michael
description An experiment was conducted to study the genetics and nature of gene action of resistance to watermelon bud necrosis orthotospovirus (WBNV) in watermelon. The experimental materials comprised of two resistant (BIL‐53 and IIHR‐19) and one susceptible (IIHR‐140) parents. Each of the resistant parents was crossed with the susceptible parent to develop six generations (P1, P2, F1, F2, BC1 and BC2) to study genetics. The results of segregation in F2 and backcross progenies suggested that resistance is governed by a major dominant gene along with other background minor genes in both the crosses. BIL‐53 was found to possess higher degree of resistance with simple inheritance and hence may be of interest to breeders. Simple selection can be effective for improving the trait in the cross BIL‐53 × IIHR‐140 as additive gene action is prevalent.
doi_str_mv 10.1111/pbr.12639
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source Wiley-Blackwell Read & Publish Collection
subjects Citrullus
Fruits
Gangrene
Genetic analysis
Genetics
Heredity
Necrosis
orthotospovirus
Parents
resistance
watermelon
WBNV
title Genetic analysis of resistance to watermelon bud necrosis orthotospovirus in watermelon [Citrullus lanatus (Thunb.) Matsum & Nakai]
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