Genetic diversity within and among landraces of pearl millet (Pennisetum glaucum) under farmer management in West Africa

被引:38
作者
Busso, CS
Devos, KM
Ross, G
Mortimore, M
Adams, WM
Ambrose, MJ
Alldrick, S
Gale, MD
机构
[1] John Innes Ctr Plant Sci Res, Norwich, Norfolk, England
[2] IACR Rothamsted, Dept Stat, Harpenden, Herts, England
[3] Univ Cambridge, Dept Geog, Cambridge CB2 3EN, England
[4] Perkin Elmer, Warrington, Cheshire, England
关键词
AFLP; genebanks; genetic diversity; landraces; molecular markers; pearl millet;
D O I
10.1023/A:1008767220320
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The influence of farmer management on pearl millet landrace diversity was determined by evaluating variation in individual farmers' populations from two villages in north-eastern Nigeria. The variability within and between landrace samples was estimated using variation at 163 amplified fragment length polymorphism marker (AFLP) loci. The data indicated that individual farmers' husbandry practices result in the isolation of their own group of ideotypes each in their own unique genetic backgrounds, thereby rendering landrace names inappropriate as indicators of a generic genetic identity. The implications of these findings for sampling strategies for genebanks and regional genetic evaluations are discussed.
引用
收藏
页码:561 / 568
页数:8
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