Breeding Climate-Resilient Bananas

Brown, Allan; Carpentier, Sébastien; Swennen, Rony

doi:10.1007/978-3-319-97946-5_4

Cited by 13 publications

(16 citation statements)

References 999 publications

(1,369 reference statements)

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“…It is estimated that >100 million tons of bananas are produced annually since 2009, with the export value of US$13.5 billion in 2019 (Food Agriculture Organization of the United Nations, 2021 ). Despite their enormous socio-economic value, cultivated bananas are threatened by various diseases and pests, such as Fusarium wilt (Panama disease), black leaf streak, and nematode infection, and by frequent drought due to climate change (Bakry et al, 2009 ; Brown et al, 2020 ). Genetic improvements through hybridization have thus been the preferred way to obtain resistant cultivars that ensure sustainable and safe banana production (Ortiz, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Reassessing Banana Phylogeny and Organelle Inheritance Modes Using Genome Skimming Data

Sudianto

Chiu

et al. 2021

Front. Plant Sci.

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Bananas (Musa spp.) are some of the most important fruit crops in the world, contributing up to US$10 billion in export values annually. In this study, we use high-throughput sequencing to obtain genomic resources of high-copy DNA molecules in bananas. We sampled 13 wild species and eight cultivars that represent the three genera (Ensete, Musa, and Musella) of the banana family (Musaceae). Their plastomic, 45S rDNA, and mitochondrial scaffolds were recovered from genome skimming data. Two major clades (Clades I & II) within Musa are strongly supported by the three genomic compartment data. We document, for the first time, that the plastomes of Musaceae have expanded inverted repeats (IR) after they diverged from their two close relatives, Heliconiaceae (the lobster-claws) and Strelitziaceae (the traveler's bananas). The presence/absence of rps19 within IR regions reinforces the two intra-generic clades within Musa. Our comparisons of the bananas' plastomic and mitochondrial DNA sequence trees aid in identifying hybrid bananas' parentage. As the mitochondrial genes of Musa have elevated substitution rates, paternal inheritance likely plays an influential role on the Musa mitogenome evolution. We propose genome skimming as a useful method for reliable genealogy tracing and phylogenetics in bananas.

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Section: Introductionmentioning

confidence: 99%

Reassessing Banana Phylogeny and Organelle Inheritance Modes Using Genome Skimming Data

Sudianto

Chiu

et al. 2021

Front. Plant Sci.

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“…With climate change, precipitation in banana‐growing regions is expected to shift or decrease, while temperatures and consequently air vapour pressure deficits (VPDs) will continue to increase, thereby causing a major risk for banana production (Calberto et al, 2015; Machovina & Feeley, 2013; Rippke et al, 2016; Varma & Bebber, 2019). Improving banana performance for future climate conditions through breeding is therefore essential (Brown et al, 2020). Wild bananas, with naturally acquired abiotic tolerance, are therefore key (Dempewolf et al, 2017; Hajjar & Hodgkin, 2007).…”

Section: Introductionmentioning

confidence: 99%

High‐throughput phenotyping reveals differential transpiration behaviour within the banana wild relatives highlighting diversity in drought tolerance

Eyland

Luchaire

Cabrera‐Bosquet

et al. 2022

Plant Cell & Environment

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Crop wild relatives, the closely related species of crops, may harbour potentially important sources of new allelic diversity for (a)biotic tolerance or resistance. However, to date, wild diversity is only poorly characterized and evaluated. Banana has a large wild diversity but only a narrow proportion is currently used in breeding programmes. The main objective of this study was to evaluate genotype‐dependent transpiration responses in relation to the environment. By applying continuous high‐throughput phenotyping, we were able to construct genotype‐specific transpiration response models in relation to light, VPD and soil water potential. We characterized and evaluated six (sub)species and discerned four phenotypic clusters. Significant differences were observed in leaf area, cumulative transpiration and transpiration efficiency. We confirmed a general stomatal‐driven ‘isohydric’ drought avoidance behaviour, but discovered genotypic differences in the onset and intensity of stomatal closure. We pinpointed crucial genotype‐specific soil water potentials when drought avoidance mechanisms were initiated and when stress kicked in. Differences between (sub)species were dependent on environmental conditions, illustrating the need for high‐throughput dynamic phenotyping, modelling and validation. We conclude that the banana wild relatives contain useful drought tolerance traits, emphasising the importance of their conservation and potential for use in breeding programmes.

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“…Cultivated bananas are parthenocarpic and highly sterile. Conventional breeding programs have, nevertheless, screened landraces and selected those with residual fertility for genetic hybridization [10][11][12][13][14]. In Uganda, 37 out of 78 Matooke landraces are considered female fertile [9] yet their genetic variation is extremely low [15,16].…”

Section: Introductionmentioning

confidence: 99%

Application of Pollen Germination Media on Stigmas during Pollination Increases Seed Set in East African Highland Cooking Bananas (Musa spp.)

et al. 2021

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Seed set in East African Highland Cooking bananas (EAHBs) is extremely low and therefore hampers breeding. Pollen–pistil interaction is a key contributing factor. We assessed the effect of pollen germination media (PGM) on seed set in EAHBs. Five EAHB cultivars were pollinated with pollen from the wild banana ‘Calcutta 4’. Glucose-based PGM sprayed on freshly emerged stigmas significantly increased seed set per 100 fruits per bunch. Increases were 73.5% in ‘Enzirabahima’, 39.9% in ‘Mshale’, and 302.4% in ‘Nshonowa’. However, PGM did not increase seed set in the female sterile ‘Mlelembo’ and ‘Nakitembe’. As larger bunches were more fertile, good field management practices are also recommended to get more seed to improve breeding efficiency.

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Breeding Climate-Resilient Bananas

Abstract: The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use.

Cited by 13 publications

References 999 publications

Reassessing Banana Phylogeny and Organelle Inheritance Modes Using Genome Skimming Data

Reassessing Banana Phylogeny and Organelle Inheritance Modes Using Genome Skimming Data

High‐throughput phenotyping reveals differential transpiration behaviour within the banana wild relatives highlighting diversity in drought tolerance

Application of Pollen Germination Media on Stigmas during Pollination Increases Seed Set in East African Highland Cooking Bananas (Musa spp.)

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