干旱区生态环境知识资源中心(Arid): Depicting the phenotypic space of the annual plant Diplotaxis acris in hyperarid deserts

Arid

DOI	10.1002/ece3.8232
	Depicting the phenotypic space of the annual plant Diplotaxis acris in hyperarid deserts
	Gomaa, Nasr H.; Xavier Pico, F.
通讯作者	Pico, FX (corresponding author), CSIC, Estn Biol Donana EBD, Dept Ecol Integrat, Seville 41092, Spain.
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2021
英文摘要	The phenotypic space encompasses the assemblage of trait combinations yielding well-suited integrated phenotypes. At the population level, understanding the phenotypic space structure requires the quantification of among- and within-population variations in traits and the correlation pattern among them. Here, we studied the phenotypic space of the annual plant Diplotaxis acris occurring in hyperarid deserts. Given the advance of warming and aridity in vast regions occupied by drylands, D. acris can indicate the successful evolutionary trajectory that many other annual plant species may follow in expanding drylands. To this end, we conducted a greenhouse experiment with 176 D. acris individuals from five Saudi populations to quantify the genetic component of variation in architectural and life history traits. We found low among-population divergence but high among-individual variation in all traits. In addition, all traits showed a high degree of genetic determination in our study experimental conditions. We did not find significant effects of recruitment and fecundity on fitness. Finally, all architectural traits exhibited a strong correlation pattern among them, whereas for life history traits, only higher seed germination implied earlier flowering. Seed weight appeared to be an important trait in D. acris as individuals with heavier seeds tended to advance flowering and have a more vigorous branching pattern, which led to higher fecundity. Population divergence in D. acris might be constrained by the severity of the hyperarid environment, but populations maintain high among-individual genetic variation in all traits. Furthermore, D. acris showed phenotypic integration for architectural traits and, to a lesser extent, for life history traits. Overall, we hypothesize that D. acris may be fine-tuned to its demanding extreme environments. Evolutionary speaking, annual plants facing increasing warming, aridity, and environmental seasonality might modify their phenotypic spaces toward new phenotypic configurations strongly dominated by correlated architectural traits enhancing fecundity and seed-related traits advancing flowering time.
英文关键词	Architectural traits Diplotaxis acris fitness genetic variation hyperarid deserts integrated phenotype life history traits phenotypic space
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000714535400001
WOS关键词	LIFE-HISTORY TRAITS ; ADAPTIVE EVOLUTION ; FLOWERING TIME ; GENETIC DIFFERENTIATION ; ARABIDOPSIS-THALIANA ; NATURAL-SELECTION ; RAPID EVOLUTION ; SEED BANK ; POPULATIONS ; GERMINATION
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367709
作者单位	[Gomaa, Nasr H.] Beni Suef Univ, Fac Sci, Dept Bot & Microbiol, Bani Suwayf, Egypt; [Gomaa, Nasr H.] Jouf Univ, Coll Sci, Biol Dept, Sakaka, Saudi Arabia; [Xavier Pico, F.] CSIC, Estn Biol Donana EBD, Dept Ecol Integrat, Seville 41092, Spain
推荐引用方式 GB/T 7714	Gomaa, Nasr H.,Xavier Pico, F.. Depicting the phenotypic space of the annual plant Diplotaxis acris in hyperarid deserts[J],2021.
APA	Gomaa, Nasr H.,&Xavier Pico, F..(2021).Depicting the phenotypic space of the annual plant Diplotaxis acris in hyperarid deserts.ECOLOGY AND EVOLUTION.
MLA	Gomaa, Nasr H.,et al."Depicting the phenotypic space of the annual plant Diplotaxis acris in hyperarid deserts".ECOLOGY AND EVOLUTION (2021).