干旱区生态环境知识资源中心(Arid): Mating system of Datura inoxia: association between selfing rates and herkogamy within populations

Arid

DOI	10.7717/peerj.10698
	Mating system of Datura inoxia: association between selfing rates and herkogamy within populations
	Jimenez-Lobato, Vania; Nunez-Farfan, Juan
通讯作者	Nunez-Farfan, J (corresponding author), Univ Nacl Autonoma Mexico, Dept Ecol Evolut, Lab Genet Ecol & Evolut, Inst Ecol, Ciudad De Mexico, Distrito Federa, Mexico.
来源期刊	PEERJ
ISSN	2167-8359
出版年	2021
卷号	9
英文摘要	Plant mating system determines, to a great extent, the demographic and genetic properties of populations, hence their potential for adaptive evolution. Variation in plant mating system has been documented between phylogenetically related species as well between populations of a species. A common evolutionary transition, from outcrossing to selling, is likely to occur under environmental spatial variation in the service of pollinators. Here, we studied two phenotypically (in floral traits) and genetically (in neutral molecular markers) differentiated populations of the annual, insect-pollinated, plant Datura inoxia in Mexico, that differ in the service of pollinators (Mapimi and Canada Moreno). First, we determined the populations' parameters of phenotypic in herkogamy, outcrossing and selling rates with microsatellite loci, and assessed between generation (adults and seedlings) inbreeding, and inbreeding depression. Second, we compared the relationships between parameters in each population. Results point strong differences between populations: plants in Mapimi have, on average, approach herkogamy, higher outcrossing rate (t(m) = 0.68), lower primary selling rate (r = 0.35), and lower inbreeding at equilibrium (F-e = 0.24) and higher inbreeding depression (delta = 0.25), than the populations of Canada. Outcrossing seems to be favored in Mapimi while selling in Canada. The relationship between r and F-e were negatively associated with herkogamy in Mapimi; here, progenies derived from plants with no herkogamy or reverse herkogamy had higher selfing rate and inbreeding coefficient than plants with approach herkogamy. The difference F-e-F is positively related to primary selling rate (r) only in Canada Moreno which suggests inbreeding depression in selfing individuals and then genetic purging. In conclusion, mating system evolution may occur differentially among maternal lineages within populations of Datura inoxia, in which approach herkogamy favors higher outcrossing rates and low levels of inbreeding and inbreeding depression, while no herkogamy or reverse herkogamy lead to the evolution of the selfing syndrome following the purge of deleterious alleles despite high inbreeding among individuals.
英文关键词	Chihuahuan desert Datura inoxia Genetic variance Herkogamy Inbreeding coefficient Inbreeding depression Plant mating system Outcrossing rate Primary selfing rate Selfing syndrome
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000630920300001
WOS关键词	INBREEDING DEPRESSION ; REPRODUCTIVE ASSURANCE ; FLORAL TRAITS ; CROSS-FERTILIZATION ; OUTCROSSING RATES ; GENETIC-VARIATION ; BETA REGRESSION ; EVOLUTION ; PLANTS ; POLLEN
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	Universidad Nacional Autónoma de México
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351303
作者单位	[Jimenez-Lobato, Vania] Univ Autonoma Guerrero, CONACYT, Escuela Super Desarrollo Sustentable, Chilpancingo De Bravo, Gro, Mexico; [Jimenez-Lobato, Vania; Nunez-Farfan, Juan] Univ Nacl Autonoma Mexico, Dept Ecol Evolut, Lab Genet Ecol & Evolut, Inst Ecol, Ciudad De Mexico, Distrito Federa, Mexico
推荐引用方式 GB/T 7714	Jimenez-Lobato, Vania,Nunez-Farfan, Juan. Mating system of Datura inoxia: association between selfing rates and herkogamy within populations[J]. Universidad Nacional Autónoma de México,2021,9.
APA	Jimenez-Lobato, Vania,&Nunez-Farfan, Juan.(2021).Mating system of Datura inoxia: association between selfing rates and herkogamy within populations.PEERJ,9.
MLA	Jimenez-Lobato, Vania,et al."Mating system of Datura inoxia: association between selfing rates and herkogamy within populations".PEERJ 9(2021).