Development of new cowpea(Vigna unguiculata)mutant genotypes,analysis of their agromorphological variation,genetic diversity and population structure
作者机构：Laboratoire Campus de Biotechnologies VégétalesDépartement de Biologie VégétaleFacultédes Sciences et TechniquesUniversitéCheikh Anta DiopDakar-FannDakar10700Sénégal Facultédes Sciences et Technologies de l’Education et de la FormationUniversitéCheikh Anta DiopDakar-FannDakar10700Sénégal
出 版 物：《BIOCELL》 (生物细胞（英文）)
年 卷 期：2021年第45卷第2期
页 面：345-362页
核心收录：
基 金：The project was funded by the International Atomic energy Agency(IAEA)under RAF5066 and RAF5076
主 题：Agromorphological characterization Induced mutagenesis ISSR Plant breeding
摘 要：Cowpea is one of the most important legume grains in the sub-Saharan region of Africa used for human consumption and animal feed,but its production is hampered by biotic and abiotic constraints raising the need to broaden its genetic *** this purpose,seeds of two cowpea varieties Melakh and Yacine were irradiated with 300 and 340 Gy of gamma-ray,*** developed mutant populations were agromorphologically characterized from M5 to M7,while the genetic diversity of the latter was evaluated using 13 ISSR *** on the agromorphological characterization,variation of flower color,pod length,seed coat color,and seed weight with 78.01,68.29,94.48,and 57.58%heritability,respectively,were recorded in the mutant *** analyses allowed to identify the elite mutants based on their agromorphological traits,while Pearson’s correlation results revealed a positive correlation between yield and yield component *** subpopulations were identified through STRUCTURE analyses,but the assignment of the individuals in each group was improved using DAPC(Discriminant Analysis of Principal Components)*** of Molecular Variance revealed that the majority(85%)of the variance rather existed within groups than among(15%)***,our study allowed us to select new promising mutant genotypes that could be tested for multi-locational trials to evaluate their agronomic performance.
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