**Acknowledgements**

Special thanks are given to Rabi'atul Adawiyah Fauzi and Nur Aisyah Abdul Hamid for sharing their literature review collections to complete this book chapter. Thank you are addressed to Genome Wide Association Laboratory members and anonymous reviewers for helping us to improve the early version of this book chapter. This research was supported by the Ministry of Education (MOE) through (FRGS/1/2018/STG03/UPM/01/1), (FRGS/1/2020/WAB11/UPM/02/2) and (TRGS/1/2020/UPM/01/4).
