Wednesday, 21 June 2017 07:55

Manuka genetics may help myrtle rust battle

Written by  Pam Tipa
Myrtle rust. Myrtle rust.

A science project looking at manuka genetics, underway for some time, now may be useful in protecting the manuka species from myrtle rust.

The nationwide project sequenced the manuka genome and is now exploring its genetic diversity. With the arrival of myrtle rust more emphasis has gone on looking at ways to mitigate the fungal disease, a Plant & Food spokesman told Rural News.

They are looking at the particular genes that produce the resistance in myrtle rust.

Plant & Food Research mapped manuka’s genetic blueprint in 2015 and shared the information with tangata whenua and the New Zealand research community.

The research focus has since moved to using bioinformatic techniques to get a detailed understanding of the unique attributes of manuka’s genetic stocks; the data have been gleaned from about 1000 samples of manuka leaf collected nationwide with Landcare Research, the University of Waikato and key Maori partners.

The information generated is providing important scientific insights about the distribution and genetic diversity within and between manuka populations in NZ.

“While it’s not clear just what effect myrtle rust will have on manuka under NZ conditions, we should expect differences in susceptibility and resistance across the manuka populations,” says Plant & Food Research science group leader Dr David Chagne.

“This will help us to better predict the potential damage from myrtle rust and determine how fast the various manuka populations will respond to the disease.”

Research outcomes from the project are expected to be released between June and August this year.

Find in BOP

The Ministry for Primary Industries (MPI) has confirmed that myrtle rust is present in Te Puke, Bay of Plenty.

The infection has been found in a 25-year-old ramarama plant in a private residential garden. It is the first find in a number of weeks outside the key infection area in Taranaki.

Myrtle rust response incident controller David Yard says the new find is very disappointing.

“While it’s too early to say what the new detection will mean to the ongoing operation, it’s certainly not good news in terms of its distribution in New Zealand.”

To date there are 46 known infected properties in NZ: four in Northland, two in Waikato, 39 in Taranaki and the new find in Bay of Plenty.

Kiwifuit Vine Health (KVH) says it understands the Bay of Plenty find is close to kiwifruit orchards. Myrtle rust doesn’t affect kiwifruit.

More like this

Help available for flood-hit farmers

The chair of the Otago Rural Support Trust, Tom Pinckney, says he believes that they will be especially busy in the coming months as the enormity of the floods hit home.

Getting Onside

Time matters in a biosecurity response, says Ryan Higgs, Chief Executive of biosecurity technology company Onside.

Featured

Fonterra trims board size

Fonterra’s board has been reduced to nine - comprising six farmer-elected and three appointed directors.

Boost for hort exports

The horticulture sector is a big winner from recent free trade deals sealed with the Gulf states, says Associate Agriculture Minister Nicola Grigg.

Better animal genetic gain system

A governance group has been formed, following extensive sector consultation, to implement the recommendations from the Industry Working Group's (IWG) final report and is said to be forming a 'road map' for improving New Zealand's animal genetic gain system.

National

The show is on!

It was bringing in a new Canterbury A&P Association (CAPA) show board, more in tune with the CAPA general committee,…

Machinery & Products

An ideal solution for larger farms

Designed specifically for large farms that want to drill with maximum flexibility, efficiency and power, the new Lemken Solitair ST…

Landpower increases its offering

Landpower and the Claas Harvest Centre network will launch the Claas Scorpion and Torion material handling solutions to the market…

» Latest Print Issues Online

The Hound

Leaky waka

OPINION: Was the ASB Economic Weekly throwing shade on Reserve Bank governor Adrian Orr when reporting on his speech in…

Know-it-alls

OPINION: A reader recently had a shot at the various armchair critics that she judged to be more than a…

» Connect with Rural News

» eNewsletter

Subscribe to our weekly newsletter