干旱区生态环境知识资源中心(Arid): Effects of genetic and environmental factors on variations of seed heteromorphism in Suaeda aralocaspica

Arid

DOI	10.1093/aobpla/plaa044
	Effects of genetic and environmental factors on variations of seed heteromorphism in Suaeda aralocaspica
	Cao, Jing; Chen, Ling; Wang, Juan; Xing, Jiajia; Lv, Xiuyun; Maimaitijiang, Tayier; Lan, Haiyan
通讯作者	Lan, HY
来源期刊	AOB PLANTS
ISSN	2041-2851
出版年	2020
卷号	12 期号:5
英文摘要	Seed heteromorphism is an adaptive strategy towards adversity in many halophytes. However, the underlying mechanisms and ecological significance of seed heteromorphism have not been deeply explored. Using Suaeda aralocaspica, a typical C-4 annual halophyte without Kranz anatomy, we studied seed morphology, differentiation of morphs and fruit-setting patterns, and correlated these traits with germination responses, seed characteristics and heteromorphic seed ratio. To elucidate the genetic basis of seed heteromorphism, we analysed correlated patterns of gene expression for seed development-related genes as well. We observed that S. aralocaspica produced three types of seed morph: brown, large black and small black with differences in colour, size, mass and germination behaviour; the latter two were further distinguished by their origin in female or bisexual flowers, respectively. Further analysis revealed that seed heteromorphism was associated with genetic aspects including seed positioning, seed coat differentiation and seed developmental gene expression, while variations in seed heteromorphism may be associated with environmental conditions, e.g. annual precipitation, temperature, daylight and their monthly distribution in different calendar years. Seed heteromorphism and its variations in S. aralocaspica show multilevel regulation of the bet-hedging strategy that influences phenotypic plasticity, which is a consequence of internal genetic and external environmental factor interaction. Our findings contribute to the understanding of seed heteromorphism as a potential adaptive trait of desert plant species.
英文关键词	Germination heterospermy internal and external factor seed ontogeny Suaeda aralocaspica
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000577162400001
WOS关键词	REGULATES ABSCISIC-ACID ; PHENOTYPIC PLASTICITY ; COLD DESERT ; DIMORPHIC SEEDS ; DISPERSAL ABILITY ; GERMINATION ; DORMANCY ; PLANT ; POSITION ; ECOLOGY
WOS类目	Plant Sciences ; Ecology
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326747
作者单位	[Cao, Jing; Chen, Ling; Wang, Juan; Xing, Jiajia; Lv, Xiuyun; Maimaitijiang, Tayier; Lan, Haiyan] Xinjiang Univ, Coll Life Sci & Technol, Xinjiang Key Lab Biol Resources & Genet Engn, Urumqi, Peoples R China; [Wang, Juan] Xinjiang Acad Agr Sci, Inst Hort Crops, Urumqi, Peoples R China
推荐引用方式 GB/T 7714	Cao, Jing,Chen, Ling,Wang, Juan,et al. Effects of genetic and environmental factors on variations of seed heteromorphism in Suaeda aralocaspica[J]. 新疆大学,2020,12(5).
APA	Cao, Jing.,Chen, Ling.,Wang, Juan.,Xing, Jiajia.,Lv, Xiuyun.,...&Lan, Haiyan.(2020).Effects of genetic and environmental factors on variations of seed heteromorphism in Suaeda aralocaspica.AOB PLANTS,12(5).
MLA	Cao, Jing,et al."Effects of genetic and environmental factors on variations of seed heteromorphism in Suaeda aralocaspica".AOB PLANTS 12.5(2020).