The Pipeline of GM Crops for Improved Animal Feed: Challenges for Commercial Use - Animal Nutrition with Transgenic Plants - page 169

Table 12.1. Pipeline of events with a low-phytate phenotype and/or high phytase expression.

Patent
year (if
any)

Event
name

Site
modifi cation

Phenotype
modifi cation

Development
stage

Field
trials

Feed
trials Crop Developer Country Reference

Barley Palacký University,

Olomouc

Czech Rep phyA High phytase 4 Ohnoutkova, 2010 Yes - -

Barley Aarhus University Denmark HvPAPhy_a High phytase 4 Holme et al ., 2012 Yes - -

Lucerne University of Wisconsin USA phyA High phytase 5 Ullah et al ., 2002 - - 1999

Lucerne Samuel Roberts Noble

Foundation

USA MtPHY1 and

MtPAP1

P uptake 5 Ma et al ., 2012 Yes - 2005

Maize CAAS and Origin

Agritech

China B23-3-1 phyA2 High phytase 2 Chen et al ., 2008 Yes - 2006

Maize Syngenta USA appA High phytase 4 Nyannor et al .,

2007

Yes Yes -

Maize Aachen University Germany phyA High phytase 5 Drakakaki et al .,

2005

- - -

Maize Pioneer USA lpa1 Low phytate 5 Shi et al ., 2007 Yes - 2005

Maize Dow and Sangamo

BioSciences

USA IPK1 Low phytate 5 Shukla et al ., 2009 - - 2006

Rapeseed Syngenta, BASF and

PlantZymes

Netherlands MPS961-5 phyA High phytase 3 -

discontinued

Ponstein et al .,
2002

Yes - 1990

Rapeseed Shanghai Academy of

Agricultural Sciences

China phyA High phytase 5 Peng et al ., 2006 - Yes 2002

Rice Yangzhou University China PRSPhyI High phytase 5 Liu et al. , 2006 - - -

Rice Zhejiang University China appA High phytase 5 - - - 2008

Rice Mitsui Chemicals Japan phy High phytase 5 Hamada et al .,

2005

- - -

Rice University of Tokyo Japan RINO1 Low phytate 5 Kuwano et al ., - - -