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Abstract Detail

Comparative Genomics/Transcriptomics

Hartmann, Aly [1], Schwartz, Rachel [1].

Presence of 7 cellulose synthase (CesA) genes within mosses suggests early diversification.

Cellulose is an important organic compound that constitutes all plant cell walls, giving them strength and stability. Studying the plant cellulose synthesis (CesA) genes helps understand the relationship between the expansion of this gene family and the evolution of cellulose cell walls. We aimed to quantify the presence of seven CesA genes across mosses. This gene family does not appear within just mosses, but well before Bryophyta evolved, as vascular plants also have CesA genes present. This gene family could have evolved separately within mosses, so quantifying the presence will help understand this diversification. We examined 67 species of moss in 26 families, based on the availability of transcriptome data and the Physcomitrium patens genome. We aligned reads to the reference genome and extracted the reads that aligned to CesA genes. Thirty-two species had all seven CesA genes present, assuming that gene Pp3c15_7120 scored less due to its similarities to gene Pp3c9_11990. Since all genes were present, our results support the theory that CesA genes diversified at least as early as the mesozoic period, during or possibly even prior to the onset of moss diversification.

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1 - University of Rhode Island, Biological Sciences, 120 Flagg Road, Kingston, RI, 02881, USA


Presentation Type: Poster
Session: P1, Comparative Genomics/Transcriptomics Posters
Location: Virtual/Virtual
Date: Monday, July 19th, 2021
Time: 5:00 PM(EDT)
Number: P1GT012
Abstract ID:956
Candidate for Awards:None

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