What is crop heterosis: new insights into an old topic

Fu, Donghui, Xiao, Meili, Hayward, Alice, Jiang, Guanjie, Zhu, Longrong, Zhou, Qinghong, Li, Jiqiang and Zhang, Min (2014) What is crop heterosis: new insights into an old topic. Journal of Applied Genetics, 56 1: 1-13. doi:10.1007/s13353-014-0231-z


Author Fu, Donghui
Xiao, Meili
Hayward, Alice
Jiang, Guanjie
Zhu, Longrong
Zhou, Qinghong
Li, Jiqiang
Zhang, Min
Title What is crop heterosis: new insights into an old topic
Journal name Journal of Applied Genetics
ISSN 1234-1983
2190-3883
Publication date 2014-07-16
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1007/s13353-014-0231-z
Open Access Status
Volume 56
Issue 1
Start page 1
End page 13
Total pages 13
Place of publication Heidelberg, Germany
Publisher Springer
Collection year 2015
Language eng
Abstract Heterosis (or hybrid vigor) refers to a natural phenomenon whereby hybrid offspring of genetically diverse individuals out-perform their parents in multiple traits including yield, adaptability and resistances to biotic and abiotic stressors. Innovations in technology and research continue to clarify the mechanisms underlying crop heterosis, however the intrinsic relationship between the biological basis of heterosis remain unclear. In this review, we aim to provide insight into the molecular genetic basis of heterosis by presenting recent advances in the 'omics' of heterosis and the role of non-coding regions, particularly in relation to energy-use efficiency. We propose that future research should focus on integrating the expanding datasets from different species and hybrid combinations, to mine key heterotic genes and unravel interactive 'omics' networks associated with heterosis. Improved understanding of heterosis and the biological basis for its manipulation in agriculture should help to streamline its use in enhancing crop productivity.
Keyword Crop heterosis
Energy-use efficiency
Epigenetics
Epistasis
Psuedo-overdominance
Transcriptional regulation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: Non HERDC
Queensland Alliance for Agriculture and Food Innovation
 
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Created: Mon, 25 Aug 2014, 17:20:43 EST by Dr Alice Hayward on behalf of Centre for Plant Science