干旱区生态环境知识资源中心(Arid): New seed collections of North American pitseed goosefoot (Chenopodium berlandieri) and efforts to identify its diploid ancestors through whole-genome sequencing

Arid

DOI	10.7764/rcia.v46i2.2150
	New seed collections of North American pitseed goosefoot (Chenopodium berlandieri) and efforts to identify its diploid ancestors through whole-genome sequencing
	Jellen, Eric N.; Jarvis, David E.; Hunt, Spencer P.; Mangelsen, Hayley H.; Maughan, Peter J.
通讯作者	Jellen, Eric N.
来源期刊	CIENCIA E INVESTIGACION AGRARIA
ISSN	0718-1620
出版年	2019
卷号	46 期号:2 页码:187-196
英文摘要	Pitseed goosefoot (Chenopodium berlandieri) is an ecologically diverse wild/weedy North American species within the primary gene pool for improving South American quinoa (Chenopodium quinoa). Both taxa are 36-chromosome allotetraploids with subgenomes AA and BB. The A genome is found in a large number of diploids in the Americas, along with one Northeast Asian taxon, and was recently shown to be the maternal ancestor, while the paternal B genome is closely related to several extant Eurasian diploids. Two of our primary objectives were 1) to determine the extent of genetic diversity in the allotetraploid C. berlandieri-quinoa-hircinum complex and 2) to characterize the evolutionary path from polyploidization to domestication in these taxa. In an effort to survey genetic diversity, in 2018, we made seed collections of southern Texas, southern Great Plains, and New England coastal ecotypes of C. berlandieri as well as sympatric diploids. With respect to the second goal, we performed whole-genome sequencing of two Sonoran Desert Chenopodium A-genome diploids in subsection Cellulata and Andean cultivated C. pallidicaule in subsection Leiosperma. When paired reads were aligned to the whole-genome reference of C. quinoa strain 'QQ74', the match percentages were 99.31, 99.23, and 98.53 for C. watsonii, C. sonorense, and C. pallidicaule, respectively. These data strongly support C. watsonii as being the most closely related of these three species to the A-genome ancestor of quinoa. Ongoing sequencing efforts with a larger panel of diploids are aimed at identifying the maternal ancestor of C. quinoa and C. berlandieri, if extant.
英文关键词	Chenopodium DNA sequencing genetic resources quinoa
类型	Article
语种	英语
国家	USA
开放获取类型	Green Submitted, Green Published
收录类别	SCI-E
WOS记录号	WOS:000489301000013
WOS关键词	DOMESTICATED CHENOPOD ; ORIGIN ; CROP ; COMPLEX ; QUINOA ; WEED
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214894
作者单位	Brigham Young Univ, Plant & Wildlife Sci Dept, 4105 LSB, Provo, UT 84602 USA
推荐引用方式 GB/T 7714	Jellen, Eric N.,Jarvis, David E.,Hunt, Spencer P.,et al. New seed collections of North American pitseed goosefoot (Chenopodium berlandieri) and efforts to identify its diploid ancestors through whole-genome sequencing[J],2019,46(2):187-196.
APA	Jellen, Eric N.,Jarvis, David E.,Hunt, Spencer P.,Mangelsen, Hayley H.,&Maughan, Peter J..(2019).New seed collections of North American pitseed goosefoot (Chenopodium berlandieri) and efforts to identify its diploid ancestors through whole-genome sequencing.CIENCIA E INVESTIGACION AGRARIA,46(2),187-196.
MLA	Jellen, Eric N.,et al."New seed collections of North American pitseed goosefoot (Chenopodium berlandieri) and efforts to identify its diploid ancestors through whole-genome sequencing".CIENCIA E INVESTIGACION AGRARIA 46.2(2019):187-196.