The University of Southampton
University of Southampton Institutional Repository
Warning ePrints Soton is experiencing an issue with some file downloads not being available. We are working hard to fix this. Please bear with us.

Sustainable bioenergy for climate mitigation: developing drought-tolerant trees and grasses

Sustainable bioenergy for climate mitigation: developing drought-tolerant trees and grasses
Sustainable bioenergy for climate mitigation: developing drought-tolerant trees and grasses
Background and Aims
Bioenergy crops are central to climate mitigation strategies that utilize biogenic carbon, such as BECCS (bioenergy with carbon capture and storage), alongside the use of biomass for heat, power, liquid fuels and, in the future, biorefining to chemicals. Several promising lignocellulosic crops are emerging that have no food role – fast-growing trees and grasses – but are well suited as bioenergy feedstocks, including Populus, Salix, Arundo, Miscanthus, Panicum and Sorghum.

Scope
These promising crops remain largely undomesticated and, until recently, have had limited germplasm resources. In order to avoid competition with food crops for land and nature conservation, it is likely that future bioenergy crops will be grown on marginal land that is not needed for food production and is of poor quality and subject to drought stress. Thus, here we define an ideotype for drought tolerance that will enable biomass production to be maintained in the face of moderate drought stress. This includes traits that can readily be measured in wide populations of several hundred unique genotypes for genome-wide association studies, alongside traits that are informative but can only easily be assessed in limited numbers or training populations that may be more suitable for genomic selection. Phenotyping, not genotyping, is now the major bottleneck for progress, since in all lignocellulosic crops studied extensive use has been made of next-generation sequencing such that several thousand markers are now available and populations are emerging that will enable rapid progress for drought-tolerance breeding. The emergence of novel technologies for targeted genotyping by sequencing are particularly welcome. Genome editing has already been demonstrated for Populus and offers significant potential for rapid deployment of drought-tolerant crops through manipulation of ABA receptors, as demonstrated in Arabidopsis, with other gene targets yet to be tested.

Conclusions
Bioenergy is predicted to be the fastest-developing renewable energy over the coming decade and significant investment over the past decade has been made in developing genomic resources and in collecting wild germplasm from within the natural ranges of several tree and grass crops. Harnessing these resources for climate-resilient crops for the future remains a challenge but one that is likely to be successful.
0305-7364
513-520
Taylor, G.
f3851db9-d37c-4c36-8663-e5c2cb03e171
Donnison, I.S.
e72ca13f-90cc-452c-b327-1a0e0858b50f
Murphy-Bokern, D.
98cdb3de-97e8-4965-bbaa-1500f0d41bc2
Morgante, M.
9bc7fa99-3c2b-4071-bcb5-1cee212d0ecf
Bogeat-Triboulot, M.-B.
10db5130-0e8e-4f15-9048-5f5930b0ae7b
Bhalerao, R.
62dee34e-e121-475b-a0ed-beb676cc2ed8
Hertzberg, M.
4355909e-47b9-424c-9820-02ad1ad99afc
Polle, A.
2c6f5a2f-0c3c-496f-82cf-fdb74a807ac0
Harfouche, A
28619d9a-564a-435e-89b5-7591d26d6044
Alasia, F
815307da-daeb-4e90-aa13-90093e777dad
Petoussi, V
8d7a9315-64a5-4082-be53-996a8f54ea02
Trebbi, D.
36c133f0-f56f-44ed-ab07-d5d6c219dcb6
Schwarz, K.
6a7ff403-7f87-4204-bfe7-88846f91b4b3
Keurentjes, J.J.B.
6e3afba8-0d28-47a1-997a-1dd40bec2bb4
Centritto, M.
37ba2caa-6490-4aa7-942a-353afd51eed6
Genty, B.
d1d737a3-d75b-480d-93cb-3c9f8efce88b
Flexas, J.
516b970c-80cd-444a-bbf9-a3f9ba7be26f
Grill, E.
859ba1e1-b539-46c1-b644-237f3add6814
Salvi, S.
e3efb3d0-666a-4ccf-8e91-9a3168b20c3e
Davies, W.J.
13a1264f-5940-4689-ba7e-d1c1ca7f313a
Taylor, G.
f3851db9-d37c-4c36-8663-e5c2cb03e171
Donnison, I.S.
e72ca13f-90cc-452c-b327-1a0e0858b50f
Murphy-Bokern, D.
98cdb3de-97e8-4965-bbaa-1500f0d41bc2
Morgante, M.
9bc7fa99-3c2b-4071-bcb5-1cee212d0ecf
Bogeat-Triboulot, M.-B.
10db5130-0e8e-4f15-9048-5f5930b0ae7b
Bhalerao, R.
62dee34e-e121-475b-a0ed-beb676cc2ed8
Hertzberg, M.
4355909e-47b9-424c-9820-02ad1ad99afc
Polle, A.
2c6f5a2f-0c3c-496f-82cf-fdb74a807ac0
Harfouche, A
28619d9a-564a-435e-89b5-7591d26d6044
Alasia, F
815307da-daeb-4e90-aa13-90093e777dad
Petoussi, V
8d7a9315-64a5-4082-be53-996a8f54ea02
Trebbi, D.
36c133f0-f56f-44ed-ab07-d5d6c219dcb6
Schwarz, K.
6a7ff403-7f87-4204-bfe7-88846f91b4b3
Keurentjes, J.J.B.
6e3afba8-0d28-47a1-997a-1dd40bec2bb4
Centritto, M.
37ba2caa-6490-4aa7-942a-353afd51eed6
Genty, B.
d1d737a3-d75b-480d-93cb-3c9f8efce88b
Flexas, J.
516b970c-80cd-444a-bbf9-a3f9ba7be26f
Grill, E.
859ba1e1-b539-46c1-b644-237f3add6814
Salvi, S.
e3efb3d0-666a-4ccf-8e91-9a3168b20c3e
Davies, W.J.
13a1264f-5940-4689-ba7e-d1c1ca7f313a

Taylor, G., Donnison, I.S., Murphy-Bokern, D., Morgante, M., Bogeat-Triboulot, M.-B., Bhalerao, R., Hertzberg, M., Polle, A., Harfouche, A, Alasia, F, Petoussi, V, Trebbi, D., Schwarz, K., Keurentjes, J.J.B., Centritto, M., Genty, B., Flexas, J., Grill, E., Salvi, S. and Davies, W.J. (2019) Sustainable bioenergy for climate mitigation: developing drought-tolerant trees and grasses. Annals of Botany, 124 (4), 513-520. (doi:10.1093/aob/mcz146).

Record type: Article

Abstract

Background and Aims
Bioenergy crops are central to climate mitigation strategies that utilize biogenic carbon, such as BECCS (bioenergy with carbon capture and storage), alongside the use of biomass for heat, power, liquid fuels and, in the future, biorefining to chemicals. Several promising lignocellulosic crops are emerging that have no food role – fast-growing trees and grasses – but are well suited as bioenergy feedstocks, including Populus, Salix, Arundo, Miscanthus, Panicum and Sorghum.

Scope
These promising crops remain largely undomesticated and, until recently, have had limited germplasm resources. In order to avoid competition with food crops for land and nature conservation, it is likely that future bioenergy crops will be grown on marginal land that is not needed for food production and is of poor quality and subject to drought stress. Thus, here we define an ideotype for drought tolerance that will enable biomass production to be maintained in the face of moderate drought stress. This includes traits that can readily be measured in wide populations of several hundred unique genotypes for genome-wide association studies, alongside traits that are informative but can only easily be assessed in limited numbers or training populations that may be more suitable for genomic selection. Phenotyping, not genotyping, is now the major bottleneck for progress, since in all lignocellulosic crops studied extensive use has been made of next-generation sequencing such that several thousand markers are now available and populations are emerging that will enable rapid progress for drought-tolerance breeding. The emergence of novel technologies for targeted genotyping by sequencing are particularly welcome. Genome editing has already been demonstrated for Populus and offers significant potential for rapid deployment of drought-tolerant crops through manipulation of ABA receptors, as demonstrated in Arabidopsis, with other gene targets yet to be tested.

Conclusions
Bioenergy is predicted to be the fastest-developing renewable energy over the coming decade and significant investment over the past decade has been made in developing genomic resources and in collecting wild germplasm from within the natural ranges of several tree and grass crops. Harnessing these resources for climate-resilient crops for the future remains a challenge but one that is likely to be successful.

Text
Sustainable_bioenergy_TAYLOR_et_al_V3FINAL - Accepted Manuscript
Download (197kB)

More information

Accepted/In Press date: 23 September 2019
Published date: 29 October 2019

Identifiers

Local EPrints ID: 436055
URI: http://eprints.soton.ac.uk/id/eprint/436055
ISSN: 0305-7364
PURE UUID: f0e26884-4117-4b22-b1e0-1a2e6d9ff67c
ORCID for G. Taylor: ORCID iD orcid.org/0000-0001-8470-6390

Catalogue record

Date deposited: 27 Nov 2019 17:30
Last modified: 26 Nov 2021 07:00

Export record

Altmetrics

Contributors

Author: G. Taylor ORCID iD
Author: I.S. Donnison
Author: D. Murphy-Bokern
Author: M. Morgante
Author: M.-B. Bogeat-Triboulot
Author: R. Bhalerao
Author: M. Hertzberg
Author: A. Polle
Author: A Harfouche
Author: F Alasia
Author: V Petoussi
Author: D. Trebbi
Author: K. Schwarz
Author: J.J.B. Keurentjes
Author: M. Centritto
Author: B. Genty
Author: J. Flexas
Author: E. Grill
Author: S. Salvi
Author: W.J. Davies

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×