Abstract
The genus Nassella contains many economically and environmentally important weed species in Australia, such as Nassella trichotoma (Nees) Hack. ex Arechav. (serrated tussock) and Nassella neesiana (Trin. & Rupr.) Barkworth (Chilean needle grass), which are both Weeds of National Significance (WoNS). Availability of Nassella chloroplast genome sequences can provide a versatile tool for identifying novel gene targets for DNA barcoding of these weeds species. We report here the first chloroplast genome of Nassella (N. trichotoma) obtained through de novo assembly of Illumina paired-end reads produced by total DNA sequencing. The N. trichotoma chloroplast genome is 112,102 bp in size, encodes 140 genes including 99 protein-coding genes, 37 tRNA genes and 4 ribosofmal RNA genes. The total size of intergenic regions within the genome is up to 48,764 bp. The total GC content of the genome is 37.88%, which is relatively lower than that of the reported genomes within the Stipeae tribe. A comparison of this chloro- plast genome with other Stipeae chloroplast genomes (Oryzopsis asperifolia Michx., Piptochaetium avenaceum (L.) Parodi, Achnatherum hymenoides Roem. & Schult., Stipa lipskyi Roshev. and Stipa purpurea Griseb.) provides new insights into their chloroplast genome evolution. Our future work will report genomes of other Nassella species as a means to identify novel DNA barcode regions useful for distinguishing these species.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 20th Australasian weeds conference (2016) |
| Subtitle of host publication | Science, community and food Security: the weed challenge |
| Editors | Rod Randall, Sandy Lloyd, Catherine Borger |
| Place of Publication | Perth |
| Publisher | Weed Society of Western Australia |
| Pages | 152-156 |
| Number of pages | 5 |
| ISBN (Electronic) | 9780646960319 |
| Publication status | Published - 2016 |
| Event | 20th Australasian Weeds Conference (2016) - Pan Pacific Hotel, Perth, Australia Duration: 11 Sept 2016 → 15 Sept 2016 https://web.archive.org/web/20160316141153/http://www.20awc.org.au/ (Conference website) http://caws.org.nz/old-site/awc_contents.php?yr=2016 (Conference proceedings) |
Conference
| Conference | 20th Australasian Weeds Conference (2016) |
|---|---|
| Abbreviated title | Science, Community and Food Security: the Weed Challenge |
| Country/Territory | Australia |
| City | Perth |
| Period | 11/09/16 → 15/09/16 |
| Other | In 2016, the Council of Australasian Weed Societies (CAWS), along with local hosts the Weeds Society of Western Australia, are celebrating the 20th Australasian Weeds Conference. The biennial conference is being held at the Pan Pacific in Perth, Western Australia which has traditionally been one of the highest attended AWC's, and over 300 delegates are expected from across Australasia. Delegates will come together to meet-up with peers, engage with industry sponsors, and to listen and participate in presentations and field trips on a variety of topics including: Herbicide Resistance Weeds of National Significance Agricultural weeds Environmental weeds Biological control of weeds Modelling and new technologies to manage weeds Legislation, regulation and policy to manage weed |
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