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Genomic tools and molecular breeding approaches for the domestication of field cress (Lepidium campestre L.)

Desta, Zeratsion Abera (2020). Genomic tools and molecular breeding approaches for the domestication of field cress (Lepidium campestre L.). Diss. (sammanfattning/summary) Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880
ISBN 978-91-7760-636-9
eISBN 978-91-7760-637-6
[Doctoral thesis]

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Abstract

Field cress (Lepidium campestre L.) is a biennial self-pollinated plant with a small genome size. The ever-increasing global population alongside climate change prompts urgent actions to save the ecosystem. Domesticating multi-purpose species such as field cress could be considered as part of the solution to mitigate the challenges posed by climate change and population growth. In addition to the oil producing potential, the domestication of field cress in arable lands has multitude effects – such as protecting environmental contamination and contributing as food and feed uses. In clues of these potentials, identifying the genomic variation underlying important traits using genomic tools is pivotal approach in field cress domestication. The main goal of the research in this thesis was to develop genomic tools for field cress domestication, specifically aiming at constructing the genetic linkage map, identifying the quantitative trait loci (QTL) underpinning domestication traits, and elucidating the common genetic variants associated with the seed yield as well as seed oil, protein, and moisture contents in field cress. An integrated mapping approach were performed to developing the first genetic linkage map for field cress. Relying on the linkage map, the identification of domestication QTL using linkage analysis as well as common variants using genome-wide association study (GWAS) were succeeded. Furthermore, the developed linkage map will be used in guiding to develop the reference genome using whole-genome sequencing (WGS) in field cress. Given further functional genomic efforts, the identified QTL and single variants could facilitate the process of domestication and genomicsassisted breeding in field cress, including the use of evolving approaches such as genome-wide prediction in the field cress.

Authors/Creators:Desta, Zeratsion Abera
Title:Genomic tools and molecular breeding approaches for the domestication of field cress (Lepidium campestre L.)
Year of publishing :2020
Number:2020:59
Number of Pages:66
Publisher:Institutionen för växtförädling, Sveriges lantbruksuniversitet
ISBN for printed version:978-91-7760-636-9
ISBN for electronic version:978-91-7760-637-6
ISSN:1652-6880
Language:English
Publication Type:Doctoral thesis
Article category:Other scientific
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Plant Biotechnology
Keywords:Cytogenetics, Domestication, GEBV, Genomic selection, GWAS, LD, Oil, Protein, QTL, WGS
URN:NBN:urn:nbn:se:slu:epsilon-p-108191
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108191
ID Code:17984
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:28 Oct 2020 12:15
Metadata Last Modified:11 Nov 2020 13:20

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