TY - JOUR

T1 - Morphological characterization, genetic diversity and population structure of African nightshades (section Solanum L.)

AU - Ronoh, R.

AU - Linde, Marcus

AU - Winkelmann, Traud

AU - Abukutsa-Onyango, Mary

AU - Dinssa, Fekadu Fufa

AU - Debener, Thomas

N1 - Funding information: The authors gratefully acknowledge funding from the project HORTINLEA by the German Federal Ministry of Education and Research (BMBF) (031A248E) and the German Federal Ministry of Economic Cooperation and Development (BMZ) within the framework of the GlobE (Global Food Security) program. We acknowledge World Vegetable Center (WorldVeg) and Jomo Kenyatta University of Agriculture and Technology (JKUAT) for providing germplasm. The authors gratefully acknowledge funding from the project HORTINLEA by the German Federal Ministry of Education and Research (BMBF) (031A248E) and the German Federal Ministry of Economic Cooperation and Development (BMZ) within the framework of the GlobE (Global Food Security) program. We acknowledge World Vegetable Center (WorldVeg) and Jomo Kenyatta University of Agriculture and Technology (JKUAT) for providing germplasm.

PY - 2019/1/31

Y1 - 2019/1/31

N2 - The production of African nightshade is below its potential due to a lack of superior varieties. The development of varieties through breeding programmes has been initiated in order to supply farmers with quality seeds. However, systematic studies on the agronomic performance of African nightshade germplasm have been started only recently, and publications in this area are very scarce. In this study, we analysed morphological traits relevant for the agronomic performance of 54 entries comprising two species: Solanum villosum and S. scabrum. In addition, AFLP markers and newly developed SSR markers were used to assess genetic diversity and differentiation in the African nightshade entries. An analysis of molecular variance showed higher variation within than among entries. A cluster analysis grouped the entries into two clusters representing the two species. The analysis of agronomic traits revealed significant differences among entries. The genetic diversity of the released cultivars and accessions was comparable to but lower than that of the local cultivars. Additionally, the local cultivars had higher allelic richness and a larger number of unique alleles than did the developed cultivars and could serve as a useful gene pool for future breeding of superior germplasm.

AB - The production of African nightshade is below its potential due to a lack of superior varieties. The development of varieties through breeding programmes has been initiated in order to supply farmers with quality seeds. However, systematic studies on the agronomic performance of African nightshade germplasm have been started only recently, and publications in this area are very scarce. In this study, we analysed morphological traits relevant for the agronomic performance of 54 entries comprising two species: Solanum villosum and S. scabrum. In addition, AFLP markers and newly developed SSR markers were used to assess genetic diversity and differentiation in the African nightshade entries. An analysis of molecular variance showed higher variation within than among entries. A cluster analysis grouped the entries into two clusters representing the two species. The analysis of agronomic traits revealed significant differences among entries. The genetic diversity of the released cultivars and accessions was comparable to but lower than that of the local cultivars. Additionally, the local cultivars had higher allelic richness and a larger number of unique alleles than did the developed cultivars and could serve as a useful gene pool for future breeding of superior germplasm.

KW - AFLP

KW - Agronomic traits

KW - Molecular markers

KW - S. scabrum

KW - S. villosum

KW - SSR

UR - http://www.scopus.com/inward/record.url?scp=85054346709&partnerID=8YFLogxK

U2 - 10.1007/s10722-018-0700-z

DO - 10.1007/s10722-018-0700-z

M3 - Article

AN - SCOPUS:85054346709

VL - 66

SP - 105

EP - 120

JO - Genetic Resources and Crop Evolution

JF - Genetic Resources and Crop Evolution

SN - 0925-9864

IS - 1

ER -