@Vladimir Vasipov as per your question regarding the zein genes in maize (corn), which are significant because they encode storage proteins in maize kernels, several studies have utilized molecular markers for genotyping. Below are some examples:

ISSR Markers:

• Example Study: Maize Diversity Analysis Using ISSR Markers Reference: Reddy, M.P., Sarla, N., & Siddiq, E.A. (2002). "Inter Simple Sequence Repeat (ISSR) polymorphism and its application in plant breeding." Euphytica, 128(1), 9-18. Application: This study used ISSR markers to analyze the genetic diversity in maize lines, including those with different zein gene profiles. SSR Markers:
• Example Study 1: SSR markers associated with zein genes Reference: Senior, M.L., & Heun, M. (1993). "Mapping maize microsatellites and polymerase chain reaction confirmation of the targeted repeats using a CT primer." Maize Genetics Cooperation Newsletter, 67, 56-62. Application: SSR markers were used to map regions in the maize genome, including those associated with zein genes.
• Example Study 2: Genetic Diversity of Zein Genes using SSR Reference: Vigouroux, Y., Jaqueth, J.S., Matsuoka, Y., Smith, O.S., Beavis, W.D., Smith, J.S.C., & Doebley, J. (2002). "Rate and pattern of mutation at microsatellite loci in maize." Molecular Biology and Evolution, 19(8), 1251-1260. Application: This research utilized SSR markers to assess the mutation rate and diversity of microsatellite loci associated with zein genes in maize. I hope it helps you