Past and present dynamics of sorghum and pearl millet diversity in Mount Kenya region

Simple item page
dc.contributor.authorKiambi, Dan K 
dc.contributor.authorLabeyrie, V
dc.contributor.authorDeu, M.
dc.contributor.authorDussert, Y.
dc.contributor.authorRono, B.
dc.contributor.authorLamy, F.
dc.contributor.authorMarangu, C.
dc.contributor.authorCalatayud, C.
dc.contributor.authorRobert, T.
dc.contributor.authorLeclerc, C.
dc.date.accessioned2024-03-11T06:35:31Z
dc.date.available2018-11-14T08:01:34Z
dc.date.available2024-03-11T06:35:31Z
dc.date.issued2016-06-23
dc.descriptionJournal articleen_US
dc.description.abstractCrop populations in smallholder farming systems are shaped by the interaction of biological, ecological, and social processes, occurring on different spatio temporal scales. Understanding these dynamics is fundamental for the conservation of crop genetic resources. In this study, we investigated the processes involved in sorghum and pearl millet diversity dynamics on Mount Kenya. Surveys were conducted in ten sites distributed along two elevation transects and occupied by six ethno linguistic groups. Varieties of both species grown in each site were inventoried and characterized using SSR markers. Genetic diversity was analyzed using both individual- and population based approaches. Surveys of seed lot sources allowed characterizing seed-mediated gene flow. Past sorghum diffusion dynamics were explored by comparing Mount Kenya sorghum diversity with that of the African continent. The absence of structure in pearl millet genetic diversity indicated common ancestry and/or important pollen and seed-mediated gene flow. On the contrary, sorghum varietal and genetic diversity showed geographic patterns, pointing to different ancestry of varieties, limited pollen mediated gene flow, and geographic patterns in seed-mediated gene flow. Social and ecological processes involved in shaping seed-mediated gene flow are further discussed.
dc.identifier.otherDOI: 10.1111/eva.12405
dc.identifier.urihttps://repo.pacuniversity.ac.ke/handle/123456789/1704.2
dc.language.isoenen_US
dc.publisherWiley: Evolutionary Applicationsen_US
dc.relation.ispartofseries9;10
dc.subjectcrop diversityen_US
dc.subjectfarmers’ seed systemsen_US
dc.subjectgene flowen_US
dc.subjectpopulation geneticsen_US
dc.subjectsocial organizationen_US
dc.titlePast and present dynamics of sorghum and pearl millet diversity in Mount Kenya regionen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Past and present dynamics of sorghum and pearl millet diversity in Mount Kenya region.pdf
Size:
1.42 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
JA-Biological Sciences

Version History

Now showing 1 - 1 of 1
VersionDateSummary
2*
 2024-03-11 06:33:33
n.v
* Selected version