School of Biological Sciences , Royal Holloway, University of London , Egham Hill, Egham , Surrey TW20 0EX , U.K.
International Center for Tropical Agriculture (CIAT) , 6713 , Cali , Columbia.
J Agric Food Chem. 2019 Jan 23;67(3):986-993. doi: 10.1021/acs.jafc.8b04769. Epub 2019 Jan 9.
Cassava ( Manihot esculenta Crantz) is the predominant staple food in Sub-Saharan Africa (SSA) and an industrial crop in South East Asia. Despite focused breeding efforts for increased yield, resistance, and nutritional value, cassava breeding has not advanced at the same rapidity as other staple crops. In the present study, metabolomic techniques were implemented to characterize the chemotypes of selected cassava accessions and assess potential resources for the breeding program. The metabolite data analyzed was applied to describe the biochemical diversity available in the panel, identifying South American accessions as the most diverse. Genotypes with distinct phenotypic traits showed a representative metabolite profile and could be clearly identified, even if the phenotypic trait was a root characteristic, e.g., high amylose content.
木薯(Manihot esculenta Crantz)是撒哈拉以南非洲(SSA)的主要主食,也是东南亚的一种工业作物。尽管针对提高产量、抗性和营养价值进行了集中的育种工作,但木薯的育种进展并没有像其他主要作物那样迅速。在本研究中,采用代谢组学技术对选定的木薯品种进行化学型特征分析,并评估其在育种计划中的潜在资源。所分析的代谢物数据用于描述该品种中的生化多样性,发现南美洲品种的多样性最高。具有不同表型特征的基因型表现出代表性的代谢物特征,即使表型特征是根特征,例如高直链淀粉含量,也能清楚地识别出来。