Genetic control, combining ability and heritability of resistance to stem canker in cacao (Theobroma cacao L.)

Nyadanu, Daniel; Akromah, R.; Adomako, B.; Akrofi, A. Y.; Dzahini-Obiatey, H.; Lowor, S. T.; Atta, O.; Kwoseh, C.; Awuah, R. T.; Adu-Dapaah, H.; Larbi-Koranteng, Stephen; Amoah, R. Adu; Manigben, K. A.; Attamah, Patrick

doi:10.1007/s10681-017-2059-1

Cited by 8 publications

(4 citation statements)

References 26 publications

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“…This aspect was put forward in raspberries and apples, too (STEWART et al, 2005;VAN DE WEG et al, 2018). But, because of the genetic variance related to maternity is much higher than pollinator, maternal parent has greater effect on disease resistance (NYADANU et al, 2017). Combinations that the 'Magness' variety, which is the most resistant one among the investigated varieties, was used as maternal plant, has better results with regard to fire blight resistance than other combinations, and this situation confirms the knowledge above.…”

Section: Discussionsupporting

confidence: 69%

“…In most plant species, two-thirds of the endosperm genetic material and the extranuclear DNA in mitochondria and plastids of the embryo come from maternal parent including Rosaceous plants (VOLK et al, 2015). Effects of cytoplasmic inheritance were shown on desired traits with the use of high breeding value varieties as female parent (NYADANU et al, 2017;MASNY et al, 2018). CONCLUSIONS Heterosis and heterobeltiosis focused aproach is effective method on transferring fire blight resistance to the next generation.…”

Section: Discussionmentioning

confidence: 98%

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Susceptibility, heterosis and heterobeltiosis evaluations for fire blight resistance in pear

Mertoğlu¹,

Evrenosoğlu²,

Nuri³

2020

Genetika

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Fire blight is a devastating disease of Pomaceous trees that can cause death of the plants and leading to substantial crop losses. Controlled hybridization is widely used in breeding programs, due to the polygenic nature of fire blight resistance and the complexity of its mechanism. Right choice of parents appears to be the most significant criterion for obtaining genotypes that have desired characteristics. In this study 13 parental pear cultivars and 9749 F1 pear hybrids that were obtained from 36 different hybridization combinations were evaluated for fire blight resistance. Manifestation of heterosis and heterobeltiosis were also determined. As results of the study, 'Magness' is foremost as the most resistant variety, and followed by 'Ankara', 'Moonglow', 'Kiefer' and 'Kaiser Alexandre', respectively. 'Conference', 'Williams' and 'Santa Maria' were found susceptible to disease, while 'Guz', 'Limon', 'Bursa', 'Akca' and 'Tas' were highly susceptible to disease. Maternal parent was more effective for the transmission of fire blight resistance, when compared to pollinator parent. For this reason, it is suggested that disease-resistant varieties should be used as maternal parent. Heterosis was detected in 12 hybridization combinations. However, heterobeltiosis-focused approach was more effective for resistance breeding. For fire blight resistance, 'Magness  Kaiser Alexandre' and 'Magness  Kiefer' hybridization combinations that heterobeltiosis was determined are recommended.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 98%

Susceptibility, heterosis and heterobeltiosis evaluations for fire blight resistance in pear

Mertoğlu¹,

Evrenosoğlu²,

Nuri³

2020

Genetika

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“…Genetic variability in the cacao population is an important feature of breeding programs for the selection of superior genetic materials. Variations seeking high levels of heritability produced significant results in the selection of disease-resistant progenies in cacao (Nyadanu et al 2017). The resistance traits to one or both of the diseases studied were most likely to get inherited from the parents, who were initially chosen to form the base population.…”

Section: E Santos Et Almentioning

confidence: 99%

Cacao parents help their offsprings to fight witches’ broom and black pod rot infections

Santos

Pires

Monteiro

et al. 2022

Crop Breed. Appl. Biotechnol.

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Searching for new approaches to confer resistance to diseases in plants is one of the main objectives of the Cacao breeding program (CBP). Witches' broom (WB) and black pod rot (BPR) are important cacao diseases in Bahia,Brazil. This study aimed to evaluate the resistance in plants from 40 progenies of genetic crosses between elite clones to natural infection by high levels of Moniliophthora perniciosa and Phytophthora spp. WB and BPR infection assessments were conducted in the field, including evaluation of vegetative brooms (VB), cushion brooms (CB), and total brooms (TB), as well as the percentage of WB-diseased (FRUWB) and BPR-diseased (FRUBPR) fruits. Ten progenies showed resistance to infection in both the canopy and fruits. No significant differences between the progenies were detected for FRUBPR.

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“…Okey and colleagues [ 146 ] demonstrated a strong correlation between bark hardness and moisture content with canker resistance to Ppal in greenhouse studies. The same authors [ 146 ] proposed that extra-xylary tissue hardness associated with fiber content or deposition of suberin, callose and lignin could hinder the progress of fungal pathogens and that bark hardness, acting as a mechanical barrier, had contributed to the slow rate of tissue colonization of Ppal in the canker-resistant cocoa line used in greenhouse studies, leading to the use and selection of resistant cultivars with acceptable horticultural traits [ 147 ]. Such traits in Ppal resistant lines were related to lignin concentration in cocoa stems [ 148 ] and the high activities of plant enzymes such as peroxidase (PO) and polyphenoloxidase (PPO), which are involved in phenol oxidation and lignin production, and phenylalanine ammonia-lyase (PAL) in lignin and phenol biosynthesis in response to Ppal infection in cocoa-resistant clones [ 149 ].…”

Section: Cocoa Diseases By P Palmivora (Ppal)mentioning

confidence: 99%

Phytophthora palmivora–Cocoa Interaction

Perrine‐Walker

2020

JoF

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Phytophthora palmivora (Butler) is an hemibiotrophic oomycete capable of infecting over 200 plant species including one of the most economically important crops, Theobroma cacao L. commonly known as cocoa. It infects many parts of the cocoa plant including the pods, causing black pod rot disease. This review will focus on P. palmivora’s ability to infect a plant host to cause disease. We highlight some current findings in other Phytophthora sp. plant model systems demonstrating how the germ tube, the appressorium and the haustorium enable the plant pathogen to penetrate a plant cell and how they contribute to the disease development in planta. This review explores the molecular exchange between the oomycete and the plant host, and the role of plant immunity during the development of such structures, to understand the infection of cocoa pods by P. palmivora isolates from Papua New Guinea.

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Genetic control, combining ability and heritability of resistance to stem canker in cacao (Theobroma cacao L.)

Cited by 8 publications

References 26 publications

Susceptibility, heterosis and heterobeltiosis evaluations for fire blight resistance in pear

Susceptibility, heterosis and heterobeltiosis evaluations for fire blight resistance in pear

Cacao parents help their offsprings to fight witches’ broom and black pod rot infections

Phytophthora palmivora–Cocoa Interaction

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