Jocimar Costa Rosa, Renan Santos Uhdre, Marcos Ventura Faria, Ronald José Barth Pinto, Robson Marcelo Rossi, Antonio Medina Neto, Carlos Alberto Scapim

A new approach to Fourier transform Raman: Identification of haploids in maize (Zea mays)

  • Plant Science
  • Genetics
  • Agronomy and Crop Science
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AbstractThe objective of this work was to adapt the FT Raman spectroscopy analysis in the differentiation of haploid and diploid kernels in maize, developing a new efficient, agile, precise, and nondestructive methodology. The main difference observed in FT Raman readings was a peak in the region between 1600 and 1700 cm−1 in possibly haploid kernels. It was possible to correlate the characteristics of the kernels with the presence of the R1‐nj gene and the readings obtained in the Raman spectrometry technique. Most of the kernels previously classified as haploid showed positive values for principal component analysis (PCAs), indicating a correlation in the identification of haploids by the techniques adopted. The identification of haploids by R‐Navajo was superior to FT Raman. However, FT Raman spectroscopy is an agile analysis technique that enables the development of non‐invasive and non‐destructive analytical methods in maize kernels, in addition to providing relevant information about the chemical structures present in the composition of the samples.

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