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Mitigating tradeoffs in plant breeding

Dwivedi, Sangam L. and Reynolds, Matthew Paul and Ortiz, Rodomiro (2021). Mitigating tradeoffs in plant breeding. iScience. 24 , 102965
[Article Review/Survey]

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Abstract

Tradeoffs among plant traits help maintain relative fitness under unpredictable conditions and maximize reproductive success. However, modifying tradeoffs is a breeding challenge since many genes of minor effect are involved. The intensive crosstalk and fine-tuning between growth and defense responsive phytohormones via transcription factors optimizes growth, reproduction, and stress tolerance. There are regulating genes in grain crops that deploy diverse functions to overcome tradeoffs, e.g., miR-156-IPA1 regulates crosstalk between growth and defense to achieve high disease resistance and yield, while OsALDH2B1 loss of function causes imbalance among defense, growth, and reproduction in rice. GNI-A1 regulates seed number and weight in wheat by suppressing distal florets and altering assimilate distribution of proximal seeds in spikelets. Knocking out ABA-induced transcription repressors (AITRs) enhances abiotic stress adaptation without fitness cost in Arabidopsis. Deploying AITRs homologs in grain crops may facilitate breeding. This knowledge suggests overcoming tradeoffs through breeding may expose new ones.

Authors/Creators:Dwivedi, Sangam L. and Reynolds, Matthew Paul and Ortiz, Rodomiro
Title:Mitigating tradeoffs in plant breeding
Series Name/Journal:iScience
Year of publishing :2021
Volume:24
Article number:102965
Number of Pages:22
Language:English
Publication Type:Article Review/Survey
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Genetics and Breeding
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Plant Biotechnology
URN:NBN:urn:nbn:se:slu:epsilon-p-113057
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113057
Additional ID:
Type of IDID
DOI10.1016/j.isci.2021.102965
ID Code:25093
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:30 Aug 2021 10:25
Metadata Last Modified:30 Aug 2021 10:31

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