Arid
DOI10.1080/14772000.2019.1571535
A phylogeographic study of the stoneplant Conophytum (Aizoaceae; Ruschioideae; Ruschieae) in the Bushmanland Inselberg Region (South Africa) suggests anemochory
Powell, Robyn F.1,2; Magee, Anthony R.2,3; Forest, Felix4; Cowan, Robyn S.4; Boatwright, J. Stephen1
通讯作者Powell, Robyn F.
来源期刊SYSTEMATICS AND BIODIVERSITY
ISSN1477-2000
EISSN1478-0933
出版年2019
卷号17期号:2页码:110-123
英文摘要The Bushmanland Inselberg Region (BIR) of South Africa provides an ideal system to study population interactions, as these inselbergs function as islands of Succulent Karoo surrounded by Nama Karoo vegetation. The population genetics of four Conophytum taxa endemic to the quartz-associated habitats of inselbergs in the BIR were investigated using amplified fragment length polymorphisms (AFLP), namely C. marginatum subsp. haramoepense, C. marginatum subsp. marginatum, C. maughanii, and C. ratum. Conophytum marginatum colonizes the quartz outcrops on the summits of the inselbergs, while C. maughanii and C. ratum occupy quartz patches at the summit and base of the inselbergs. A total of 24 populations were sampled to assess genetic differentiation between populations of each species, specifically between summit and base populations of C. ratum, eastern and western populations of C. maughanii and populations of the two subspecies of C. marginatum. Moderate levels of genetic differentiation were recovered between the summit and base populations of C. ratum, with an indication of some genetic connectivity between the populations. Slight differentiation between the eastern and western populations of C. maughanii was recovered, however, this was not reflected in the PCoA and STRUCTURE results. In C. marginatum, no significant genetic differentiation was recovered between populations of the subspecies. These results may reflect evidence of different dispersal mechanisms in the species, with the genetic connectivity between populations of C. ratum possibly indicating dispersal through hygrochastic capsules, while genetic connectivity between populations of C. maughanii and C. marginatum may, for the first time, suggest long-distance dispersal, i.e. anemochory. This study provides the first insights into population interactions across the BIR and highlights the importance of conservation in the region, particularly of the Gamsberg, in light of the recent mining activities.
英文关键词AFLP arid inselberg system conservation endemic hygrochastic long-distance dispersal quartz Succulent Karoo
类型Article
语种英语
国家South Africa ; England
收录类别SCI-E
WOS记录号WOS:000468343100002
WOS关键词POPULATION-STRUCTURE ; GENETIC-STRUCTURE ; AFLP MARKERS ; DIURNAL POLLINATORS ; SEED DISPERSAL ; EVOLUTION ; DETERMINANTS ; INFERENCE ; SOFTWARE
WOS类目Biodiversity Conservation ; Biology
WOS研究方向Biodiversity & Conservation ; Life Sciences & Biomedicine - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/219044
作者单位1.Univ Western Cape, Dept Biodivers & Conservat Biol, Private Bag X17, Cape Town, South Africa;
2.South African Natl Biodivers Inst, Compton Herbarium, Private Bag X7, ZA-7735 Claremont, South Africa;
3.Univ Johannesburg, Dept Bot & Plant Biotechnol, POB 524,Auckland Pk, ZA-2006 Johannesburg, South Africa;
4.Royal Bot Gardens, Jodrell Lab, Richmond TW9 3DS, Surrey, England
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Powell, Robyn F.,Magee, Anthony R.,Forest, Felix,et al. A phylogeographic study of the stoneplant Conophytum (Aizoaceae; Ruschioideae; Ruschieae) in the Bushmanland Inselberg Region (South Africa) suggests anemochory[J],2019,17(2):110-123.
APA Powell, Robyn F.,Magee, Anthony R.,Forest, Felix,Cowan, Robyn S.,&Boatwright, J. Stephen.(2019).A phylogeographic study of the stoneplant Conophytum (Aizoaceae; Ruschioideae; Ruschieae) in the Bushmanland Inselberg Region (South Africa) suggests anemochory.SYSTEMATICS AND BIODIVERSITY,17(2),110-123.
MLA Powell, Robyn F.,et al."A phylogeographic study of the stoneplant Conophytum (Aizoaceae; Ruschioideae; Ruschieae) in the Bushmanland Inselberg Region (South Africa) suggests anemochory".SYSTEMATICS AND BIODIVERSITY 17.2(2019):110-123.
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