Seed traits evaluation from long-term selection of kernel oil concentration in a high-oil maize population KYHO

doi:10.4141/CJPS2011-247

CORC > 中国农业科学院 > 作物科学研究所

	Seed traits evaluation from long-term selection of kernel oil concentration in a high-oil maize population KYHO
	Wang Hong-Wu 1,2; Hu Hai-Xiao 1; Song Tong-Ming 1; Chen Shao-Jiang 1
刊名	CANADIAN JOURNAL OF PLANT SCIENCE
	2012
卷号	92 期号:5 页码:857-866
关键词	Embryo endosperm high-oil maize long-term selection population
ISSN号	0008-4220
DOI	10.4141/CJPS2011-247
通讯作者	Wang Hong-Wu
英文摘要	Wang, H.-W., Hu, H.-X., Song, T.-M. and Chen, S.-J. 2012. Seed traits evaluation from long-term selection of kernel oil concentration in a high-oil maize population KYHO. Can. J. Plant Sci. 92: 857-866. A high-oil maize population, KYHO, was developed over 10 generations by selective breeding for increased kernel oil content (KOC). The objectives of this study were to evaluate kernel oil selection effects, and measure the trait changes and genetic variance in the embryo and endosperm. Oil, protein, and starch content in the embryo and endosperm were estimated by near-infrared reflectance spectroscopy (NIRS). Mass and volume of embryo and endosperm were measured. Selective breeding increased embryo oil content (EMOC) and endosperm oil content (ENOC), especially EMOC, which changed from 315.62 g kg(-1) C0 to 592.54 g kg(-1) C10, resulting in an increase in total embryo and endosperm oil content (EEOC) from 43.32 g kg(-1) C0 to 139.95 g kg(-1) C10. With selection for increase in EEOC, embryo protein content (EMPC) decreased slightly; however, endosperm protein content (ENPC) and total protein content (EEPC) increased significantly. Embryo and endosperm starch content (EMSC and ENSC) and total starch content (EESC) all decreased substantially with selection. One hundred embryo mass (EMM) was not notably changed with selection, but 100 embryo volume (EMV) increased significantly. Mass and volume of endosperm (ENM and ENV) and total mass and volume of embryo and endosperm (EEM and EEV) all decreased significantly with selection, possibly due to markedly decreased starch content. Linear regression analysis indicated with each 1 g kg(-1) EEOC increase, EMOC, ENOC, ENPC, EEPC, EMM, and EMV increased 2.74 g kg(-1), 0.16 g kg(-1), 0.38 g kg(-1), 0.36 g kg(-1), g, and 0.20 mL, respectively, and EM PC, EMSC, ENSC, EESC, EEM, ENM, EEV, and ENV decreased 0.04 g kg(-1), 1.48 g kg(-1), 0.60 g kg(-1), 1.09 g kg(-1), 1.26 g, 1.32 g, 0.97 g, and 1.17 mL, rspectively.
学科主题	Agronomy ; Plant Sciences ; AGRONOMY ; PLANT SCIENCES
语种	英语
出版者	AGRICULTURAL INST CANADA
WOS记录号	WOS:000309307500004
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5134]
专题	作物科学研究所
作者单位	1.China Agr Univ, Natl Maize Improvement Ctr China, Coll Agr & Biotechnol, Beijing 100091, Peoples R China 2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wang Hong-Wu,Hu Hai-Xiao,Song Tong-Ming,et al. Seed traits evaluation from long-term selection of kernel oil concentration in a high-oil maize population KYHO[J]. CANADIAN JOURNAL OF PLANT SCIENCE,2012,92(5):857-866.
APA	Wang Hong-Wu,Hu Hai-Xiao,Song Tong-Ming,&Chen Shao-Jiang.(2012).Seed traits evaluation from long-term selection of kernel oil concentration in a high-oil maize population KYHO.CANADIAN JOURNAL OF PLANT SCIENCE,92(5),857-866.
MLA	Wang Hong-Wu,et al."Seed traits evaluation from long-term selection of kernel oil concentration in a high-oil maize population KYHO".CANADIAN JOURNAL OF PLANT SCIENCE 92.5(2012):857-866.