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Cross the Best with the Best, and Select the Best: HELP in Breeding Selfing Crop

van Ginkel, Maarten and Ortiz Rios, Rodomiro Octavio (2018). Cross the Best with the Best, and Select the Best: HELP in Breeding Selfing Crop. Crop Science. 58, 1-14
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Official URL: http://dx.doi.org/10.2135/cropsci2017.05.0270

Abstract

Hybrid-enabled line profiling (HELP) is a new integrated breeding strategy for self-fertilizing crops that combines existing and recently identified elements, resulting in a strategy that synergistically exceeds existing breeding concepts. Heterosis in selfing crops is often driven by additive and additive X additive gene action, the molecular basis of which is increasingly
being revealed. Unlike nonadditive heterosis, additive forms can be relatively easily fixed in homozygous lines, meaning that their seed can simply be resown to express the same “heterosis.” Crossing diverse, complementary
“selfing” parents to create the desired trait or
allele line profile requires strict male sterility of
the female; this can now be achieved relatively easily through present and emerging chemical, environmental, or genetic techniques. Fairly small amounts of hybrid seed are needed, with no need to scale up seed production, as it is not the hybrid that will be commercialized. After
multilocation testing, homozygous lines from only the most superior hybrids, driven mainly by additive effects and additive X additive gene action, are rapidly derived using techniques such as doubled haploids. Multilocation testing and molecular confirmation of target line profiles then identify superior lines for release to
farmers. The HELP strategy integrates modern high-throughput versions of existing and new concepts and methodologies into a breeding system strategy that focuses on the most superior crosses, <10% of all crosses. This focus results in significant increases in efficiency and can reverse the edible yield plateauing seen or feared in some of our major selfing food crops.

Authors/Creators:van Ginkel, Maarten and Ortiz Rios, Rodomiro Octavio
Title:Cross the Best with the Best, and Select the Best: HELP in Breeding Selfing Crop
Series/Journal:Crop Science
Year of publishing :2018
Volume:58
Page range:1-14
Number of Pages:14
Publisher:Crops Science of America
ISSN:0011-183X
Language:English
Publication Type:Article Review/Survey
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:F Plant production > F30 Plant genetics and breeding
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Genetics and Breeding
Agrovoc terms:plant breeding, self compatibility, genomics
Keywords:plant breeding, self compatibility, genomics
URN:NBN:urn:nbn:se:slu:epsilon-e-4614
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4614
ID Code:15238
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:12 Jan 2018 09:21
Metadata Last Modified:12 Jan 2018 09:21

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