Breeding More Crops in Less Time: A Perspective on Speed Breeding

Samantara, K and Bohra, A and Mohapatra, S R and Prihatini, R and Asibe, F and Singh, L and Reyes, V P and Tiwari, A and Maurya, A K and Croser, J S and Wani, S H and Siddique, K H M and Varshney, R K (2022) Breeding More Crops in Less Time: A Perspective on Speed Breeding. Biology, 11 (2). pp. 1-14. ISSN 2079-7737

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Abstract

Breeding crops in a conventional way demands considerable time, space, inputs for selection, and the subsequent crossing of desirable plants. The duration of the seed-to-seed cycle is one of the crucial bottlenecks in the progress of plant research and breeding. In this context, speed breeding (SB), relying mainly on photoperiod extension, temperature control, and early seed harvest, has the potential to accelerate the rate of plant improvement. Well demonstrated in the case of long-day plants, the SB protocols are being extended to short-day plants to reduce the generation interval time. Flexibility in SB protocols allows them to align and integrate with diverse research purposes including population development, genomic selection, phenotyping, and genomic editing. In this review, we discuss the different SB methodologies and their application to hasten future plant improvement. Though SB has been extensively used in plant phenotyping and the pyramiding of multiple traits for the development of new crop varieties, certain challenges and limitations hamper its widespread application across diverse crops. However, the existing constraints can be resolved by further optimization of the SB protocols for critical food crops and their efficient integration in plant breeding pipelines.

Item Type:	Article
Divisions:	Center of Excellence in Genomics and Systems Biology
CRP:	UNSPECIFIED
Uncontrolled Keywords:	breeding cycle, genetic gain, genomic selection, gene editing, photoperiod, single seed descent
Subjects:	Others > Plant Breeding Others > Genetics and Genomics
Depositing User:	Mr Nagaraju T
Date Deposited:	10 Apr 2024 08:56
Last Modified:	10 Apr 2024 08:58
URI:	http://oar.icrisat.org/id/eprint/12621
Official URL:	https://www.mdpi.com/2079-7737/11/2/275
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	R.K.V. is thankful to the Science and Engineering Research Board (SERB) of the Department of Science & Technology (DST), Government of India, for providing the J C Bose National Fellowship (SB/S9/Z-13/2019).
Links:	Google Scholar

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