Dear Shareef

It is depending on the tools and traits you desire. Good progress has been made in identifying molecular markers for various purposes in tea that range from diversity studies to the search for molecular markers associated with different agronomic traits. For instance, identification RAPD markers that may associate with seven important traits in tea; identification of a RAPD marker for drought tolerance; identification of quantitative trait loci associated with yield; identification of 112 novel tea unigene-derived microsatellites and sequencing of the tea transcriptome that has revealed a number of unigenes for tea and increased the coverage over the tea genome. I hope the attached articles can be useful to you.

thank you seied mehdi

You can try SSR and qtl apart from others....Refer to the attached paper, this should be of help for you

Please have a look this review papers

1. T. Bandyopadhyay , 2011. Molecular Marker Technology in Genetic Improvement of Tea. International Journal of Plant Breeding and Genetics, 5: 23-33.DOI: 10.3923/ijpbg.2011.23.33

2. Hu C-Y, Tsai Y-Z, Lin S-F. Development of STS and CAPS markers for variety identification and genetic diversity analysis of tea germplasm in Taiwan. Botanical Studies. 2014;55:12. doi:10.1186/1999-3110-55-12.

3. Mphangwe NI, Vorster J, Steyn JM, Nyirenda HE, Taylor NJ, Apostolides Z.Screening of tea (Camellia sinensis) for trait-associated molecular markers. Appl Biochem Biotechnol. 2013 Sep;171(2):437-49. doi: 10.1007/s12010-013-0370-4. Epub 2013 Jul 14.

4. T. Bandyopadhyay. Molecular Marker Technology in Genetic Improvement of Tea. ; 2011 ; 5 (1) Page No.: 23-33. DOI: 10.3923/ijpbg.2011.23.33

5. M.A.B. Ranatunga M.T.K. Gunasekare .Assembling a preliminary core collection of Tea (Camellia sinensis (L.) O. Kuntze) genetic resources in Sri Lanka.. 155, page 41 to 45 - (22003) characters.

6. Mahasen Achintiya Bandara Ranatunga, Jeevan Dananjaya Kottawa Arachchi, Kumudini Gunasekare, and Deepthi Yakandawala, “Floral Diversity and Genetic Structure of Tea Germplasm of Sri Lanka,” International Journal of Biodiversity, vol. 2017, Article ID 2957297, 11 pages, 2017. doi:10.1155/2017/2957297

7. Ney Sussumu Sakiyama, Helaine Christine Cancela Ramos , Eveline Teixeira Caixeta and Messias Gonzaga Pereira Plant breeding with marker-assisted selection in Brazil . Crop Breeding and Applied Biotechnology 14: 54-60 2014

8. Ma J-Q, Yao M-Z, Ma C-L, Wang X-C, Jin J-Q, Wang X-M, et al. (2014) Construction of a SSR-Based Genetic Map and Identification of QTLs for Catechins Content in Tea Plant (Camellia sinensis). PLoS ONE 9(3): e93131. https://doi.org/10.1371/journal.pone.0093131