Abstract Detail


Strickler, Susan [1], Gates, Daniel [2], Powell, Adrian [3], Hauser, Duncan [3], Vilela, Julianne [4], Hu, Alice [3], Li, Fay-Wei [5], Mueller, Lukas [3], Smith, Stacey [6].

Genome sequence for the purple-flowered Andean shrub Iochroma cyaneum (Solanaceae).

The tomato family Solanaceae is quickly becoming a model clade for a wide range of applied and basic research questions. Currently, genomes are available for 16 species [SRS1] [MOU2] from six genera, and these include numerous crops as well as wild species (e.g., Jaltomata sinousa and Nicotiana attenuata). Here we present the first Solanaceae genome for a woody species, the showy-flowered Andean shrub Iochroma cyaneum. Bayesian concordance analysis reveals that most of the genome (80%) supports its placement in the tomatillo tribe (Physalideae), sister to Capsiceae (62%), and in turn to Solaneae (98%). Its large 3.2Gb genome is more similar in size to those of chilipepper (3.5Gb) and goldenberry (2.3Gb) than to those of potato, tomato, and eggplant (840Mb, 950Mb, and 1.2Gb, respectively).  Our assembly recovers the vast majority of BUSCO genes, suggesting a nearly complete genome for this species. Most of the genomic content is repetitive (ca. 74%), as is the case with many plant genomes. This new genomic resource will enable ongoing comparative research focused on biochemistry and trait evolution in this colorful genus of ornamental shrubs.

1 - Boyce Thompson Institute For Plant Research , 533 Tower Road, Ithaca, NY, 14853, United States
2 - University of Nebraska, School of Biological Sciences, Lincoln, NE, USA
3 - Boyce Thompson Institute, 533 Tower Rd, Ithaca, NY, 14853, USA
4 - University of Philippines Los Banos, Philippines
5 - Boyce Thompson Institute, 533 Tower Rd, Ithaca, NY, 14853, United States
6 - University Of Colorado-Boulder, EBIO Department, Campus Box 0334, Boulder, CO, 80309, United States

genome assembly

Presentation Type: Oral Paper
Session: PHYL2, Phylogenomics II
Location: Virtual/Virtual
Date: Wednesday, July 29th, 2020
Time: 12:30 PM
Number: PHYL2001
Abstract ID:347
Candidate for Awards:None

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