Comparing genome sequences of a normally pigmented and a largely unpigmented individual of Muscari commutatum revealed a lack of local synteny around the F3H locus of the anthocyanin-pigmented plant, suggesting that F3H might have been lost in the unpigmented plant in association with a genomic rearrangement.
Abstract
Flower colour is an important component of floral signaling, yet the genetic basis of naturally occurring colour variation remains poorly understood in many non-model plant groups. Here, we compare genome sequences of a normally pigmented and a largely unpigmented individual of Muscari commutatum, a species typically characterized by very dark violet flowers. Both assemblies were approximately 3.5 Gbp in size, with contig N50 values exceeding 130 Mbp and BUSCO completeness of about 99%. Most structural genes of the flavonoid biosynthesis and the corresponding transcriptional regulators were identified in both plants. Strikingly, no flavanone 3-hydroxylase (F3H) gene was detected in the genome sequence of the unpigmented plant, and additional manual searches provided no evidence for a bona fide F3H copy. Comparison of the two genome sequences revealed a lack of local synteny around the F3H locus of the anthocyanin-pigmented plant, suggesting that F3H might have been lost in the unpigmented plant in association with a genomic rearrangement.
Cassava produces starch-filled tubers which are a crucial food source for many people, especially in Africa. This plant species is famous for drought tolerance and resilience, but changing conditions due to climate change require genetic improvements to ensure sustainable cassava cultivation. In this context, a compreh...
Moyosore Priscilla Shittu, B. Pucker· bioRxiv· 0 citations
Background UDP-glycosyltransferases (UGTs) catalyze the glycosylation of anthocyanins and are key enzymes affecting anthocyanin stability and petal coloration. However, the evolutionary characteristics of the UGT family and its regulatory roles in flower color development remain poorly understood in woody ornamental pl...
Xing-Yu Zhong, Gao-Yuan Hu, Yu-Hang Jiang et al.· Frontiers in Plant Science· 0 citations
ABSTRACT The complete chloroplast genome of Dioscorea hypoglauca—a medicinal plant native to southern China—was assembled and characterized. The genome is circular, 153,219 bp in length, and follows the typical quadripartite organization: a large single‐copy (LSC) region of 83,692 bp, a small single‐copy (SSC) region o...
Gang Li, Dao-Yong Gong, Xiang Cheng et al.· Ecology and Evolution· 0 citations
Abstract Johnsongrass [Sorghum halepense (L.) Pers.] is an allopolyploid, rhizomatous, perennial grass species and one of the most troublesome weeds in global agriculture. We assembled the first Johnsongrass genome to clarify poorly understood genetic factors influencing variable rates of crop-wild hybridization with c...
Melinda K. Yerka, Julia N. Wright, David Alvarez-Ponce et al.· Genome Biology and Evolution· 0 citations
Globba spp. is a perennial herbaceous plant of the Zingiberaceae family, characterized by its unique floral architecture and diverse coloration with high ornamental and medicinal value. However, research on the genetic basis of Globba is still insufficient, and only a limited number of molecular markers have been devel...
Jia-Yang Chen, Pei-Xun Chen, Jian-Ning Tan et al.· Horticulturae· 0 citations
The genus Inula (Asteraceae) includes numerous medicinally important species, but phylogenetic relationships within the Inula complex remain difficult to resolve using morphological characters alone. In this study, we assembled and annotated the complete chloroplast genome of Inula grandis using Illumina paired-end seq...
Farkhodjon Mingboev, G. Ermatova, I. Ergashov et al.· Analele Universitatii din Or...· 0 citations
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