Genetic Diversity Assessment of MPOB-Senegal Oil Palm Germplasm Using Microsatellite Markers

Abstract

Molecular characterization of oil palm germplasm is crucial in utilizing and conserving germplasm with promising traits. This study was conducted to evaluate the genetic diversity structures and relationships among 26 families of MPOB-Senegal oil palm germplasm using thirty-five microsatellite markers. High level of polymorphism ( P = 96.26 %), number of effective allele ( N e = 2.653 ), observed heterozygosity ( H o = 0.584 ), expected heterozygosity ( H e = 0.550 ), total heterozygosity ( H T = 0.666 ), and rare alleles (54) were observed which indicates that MPOB-Senegal germplasm has a broad genetic variation. Among the SSR markers, sMo00053 and sMg00133 were the most informative markers for discrimination among the MPOB-Senegal oil palm germplasm for having the highest private alleles and the rare alleles. For selection and conservation, oil palm populations with high rare alleles and Nei’s gene diversity index should be considered as these populations may possess unique genes for further exploitation.

Development of Intron Polymorphism Markers and Their Association With Fatty Acid Component Variation in Oil Palm

“…Molecular markers such as simple sequence repeat (SSR), RAPDs, and AFLPs have been widely used for analyzing genetic diversity and population structure, identification of trait-associated markers, and genotype characterization in E. guineensis ( Moretzsohn et al, 2000 ; Rance et al, 2001 ; Billotte et al, 2005 ; Cochard et al, 2009 ; Seng et al, 2011 ; Premkrishnan and Arunachalam, 2012 ; Myint et al, 2021 ). The release of the whole genome sequence of E. guineensis has provided an opportunity to develop IP markers with regards to targeted candidate genes.…”

Oil Palm Inflorescence Sex Ratio and Fruit Set Assessment in dura × pisifera Biparental Progenies on Fibric Peat Soil

“…However, environmental factors have been documented to greatly influence the production of male flowers. Information on weather patterns as well as evaluation of genetic instability of a given crop are considered vital in assessing progenies and their genetic origins on yield [33]. On the other hand, oil palm yield is generally determined by five agronomic traits, i.e., production of fronds, level of floral abortion, sex ratio, the extent of floral survival after anthesis, and bunch weight [34], which, in turn, depend on the availability of water supply.…”