干旱区生态环境知识资源中心(Arid): Genetic diversity and population genetic structure of three endemic species of Mammillaria (Cactaceae) from the Tehuacan Valley in central Mexico

Arid

DOI	10.1007/s10531-022-02378-w
	Genetic diversity and population genetic structure of three endemic species of Mammillaria (Cactaceae) from the Tehuacan Valley in central Mexico
	Omar Lazaro-Castellanos, Jesus; Gonzalez, Dolores; Mata-Rosas, Martin; Arias, Salvador; Reverchon, Frederique
通讯作者	Lázaro-Castellanos, JO
来源期刊	BIODIVERSITY AND CONSERVATION
ISSN	0960-3115
EISSN	1572-9710
出版年	2022
英文摘要	Mammillaria hernandezii, M. dixanthocentron and M. lanata are endemic and threatened cactus species that inhabit the Tehuacan Valley, an arid zone in southern Mexico that has an important richness of cacti. Their populations have been exposed to habitat alteration and poaching. Available information regarding genetic diversity is limited, but necessary for their conservation, and collection and use of germplasm. We used microsatellite markers to determine genetic diversity and population genetic structure of six populations of M. hernandezii, four of M. dixanthocentron and a single recorded population for M. lanata. The levels of heterozygosity were moderate in the three species (M. hernandezii Ho = 0.46, M. dixanthocentron Ho = 0.45 and M. lanata Ho = 0.52), with significant differences in their allelic richness. The genetic differentiation between populations was significant in M. hernandezii (R-ST 0.22) and M. dixanthocentron (R-ST 0.17), with evidence of isolation by distance in M. dixanthocentron. Geographic isolation and inbreeding are the processes that seem to shape the genetic variability of populations and differentiation in these species. We identified three genetic groups for M. hernandezii, and five groups for M. dixanthocentron. Conservation and protection must be guaranteed in all three species, with special emphasis on populations with high genetic diversity and private alleles. Finally, we recommended establishing a program for the development of germplasm banks, to promote Mammillaria ssp. propagation as an emerging measure of ex situ conservation.
英文关键词	Cacti Conservation Endemic species Genetic groups
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000756537400001
WOS关键词	CONSERVATION ; AMPLIFICATION ; DISTURBANCE ; SOFTWARE ; NUMBER ; CACTUS ; UNITS ; RARE
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377286
推荐引用方式 GB/T 7714	Omar Lazaro-Castellanos, Jesus,Gonzalez, Dolores,Mata-Rosas, Martin,et al. Genetic diversity and population genetic structure of three endemic species of Mammillaria (Cactaceae) from the Tehuacan Valley in central Mexico[J],2022.
APA	Omar Lazaro-Castellanos, Jesus,Gonzalez, Dolores,Mata-Rosas, Martin,Arias, Salvador,&Reverchon, Frederique.(2022).Genetic diversity and population genetic structure of three endemic species of Mammillaria (Cactaceae) from the Tehuacan Valley in central Mexico.BIODIVERSITY AND CONSERVATION.
MLA	Omar Lazaro-Castellanos, Jesus,et al."Genetic diversity and population genetic structure of three endemic species of Mammillaria (Cactaceae) from the Tehuacan Valley in central Mexico".BIODIVERSITY AND CONSERVATION (2022).