Research Information System
Ecology and Evolutionary Biology Symposium 2024, Çanakkale, Turkey, 23 - 25 July 2024, pp.1-2
Maize, a critical field crop, garners
significant attention in scientific circles owing to its diverse global
applications and pivotal role in human and animal nutrition. This study aims to
delve into specific indices of studied SSR markers and their implications for
genetic studies among maize populations. Twenty SSR primers and six local
populations and two commercial hybrid lines of maize were employed to assess
key traits such as heterozygosity (h), polymorphic information content (PIC),
effective multiplex ratio (EMR), marker index (MI), and resolution power (PR) across
various populations. h reflects marker diversity, ranging from 0.32 to 0.86
indicating varying diversity. PIC indicates marker informativeness, ranging
values from 0.268 to 0.844; notably, eleven markers indicate high
informativeness (PIC>0.5). EMR demonstrates the markers' ability to detect
differences, ranging from 0.5 to 3.125. MI offers an overall evaluation of
marker system utility, varying from 0.134 to 3.379, while PR measures the
markers' capacity to distinguish between different genotypes, with values
ranging from 0.667 to 6.25. Moreover, the Fst value (Fst: 0.462) suggests
significant population differentiation, supported by Jaccard similarity indices
which gives similarity result between two populations based on presence of
alleles. Jaccard results, ranges from 0.1712 to 0.274, emphasizing the distinct
genetic compositions of each group. As we expected, the comparison of two
hybrid lines and local populations showed less similarity compared to local
population comparisons. These insights offer valuable guidance for future
genetic studies in maize populations. This study is derived from Ezgi Alaca
Yıldırım's thesis study.