Inter-species hybrid x - Charles Sturt University...x Wild perennial sorghum Sorghum halapense...
Transcript of Inter-species hybrid x - Charles Sturt University...x Wild perennial sorghum Sorghum halapense...
x
Wild perennial sorghumSorghum halapense
Annual
grain
sorghum
Inter-species hybrid
Perennial
grain
sorghum
Highly
diverse
breeding
population
BULK06-10
160 cm
perennial
legumes
1. The Land Institute is
domesticating Illinois
bundleflower (IBF)
– Adapted to Great Plains
conditions
– Nitrogen fixation and seed
protein content similar to
soybean
Indehiscent
Dehiscent
Pod dropping score (0=marcescent, 2=highly deciduous)
2008 families: 0 0.5 1 2
Indehiscent families 11 13 36 48
Dehiscent families 18 2 2 1
Pod dropping score (0=marcescent, 2=highly deciduous)
2008 families: 0 0.5 1 2
Indehiscent families 11 13 36 48
Dehiscent families 18 2 2 1
2. Existing forage legumes as
nitrogen source for perennial cereals
Mowed legume intercrop
Late spring:
Mow between each row of
cereal
Multi-row mower tractor attachment
Early summer:
Mowing triggers legume to
drop fine roots; nitrogen from
decomposing roots and
leaves is taken up by the
cereal crop
3. Existing perennial grain legumes
– but usually grown as annuals
• pigeonpea
• lab-lab
• runner bean
• Lima bean
Pigeon Pea
•Deeply-rooted,
perennial
•4.92 million hectares
worldwide (3.58 million
in India alone)
•Average yield 898 kg/ha
―The pigeonpea plants, especially of the perennial varieties, have a strong root system, which helps hold the soil on sloping hillsides. ―
―’Pigeonpea has been found to be very successful in covering the soil and reducing soil erosion," says Dr Zong Xuxiao, from the Chinese Academy of Agricultural Sciences at Beijing.’‖
http://www.cgiar.org/newsroom/releases/news.asp?idnews=536
Lab-lab or hyacinth bean
(Lablab purpureus)
Runner bean (Phaseolus coccineus)
Lima bean (Phaseolus lunatus)
http://www.spiralmonkey.com/nepal/nepal.0084.jpg
IBF: seed yields of 3000 kg/ha on mine
spoils in Florida!
Protecting fragile landscapes,
reclaim degraded farmland
In Haiti alone,15,000 acres are
―abandoned to erosion‖ each
year (Paskett and Philoctete,
1990)
Perennials:
•No tillage: protect steep
slopes
•Perform well despite
crusted, degraded soil
•Deep taproots access
moisture in droughts
Protein consumption (per capita)http://commons.wikimedia.org/wiki/File:World_map_of_Protein_consumption
_1979-1981.svg by Lokal_Profil
Perennial Oilseed Grains
Sunflower family (Asteraceae)
many heads, small seeds, many seeds per head
many heads, large seeds, few seeds per head
Helianthus annuusHelianthus
maximiliani
:
Silphium
integrifolium:
modern
domestic
cultivar
wild accession (Kansas)
Strategies for perennial sunflower
Domestication Interspecific
Wild perennial
species in Asteraceae
A B C
Moderate
yield
High
yield
No shatter-
resistance
found
Small seed,
shattering
Large seed,
non-shattering
University of Minnesota The Land Institute
Annual crop
sunflower (2x)
Perennial wild
sunflower (6x)
F1 mostly
perennial (4x)
X
BC1
Annual
crop
sunflower
(4x)
X
X
Annuals & perennials
Backcross breeding to give
a tuberous Helianthus
annuus (4x)
X
X
X
(nearly)
random mating
to create a
diverse 4x
population
Cycles of
selection for
seed size and
seed yield
Variation in plant form in recurrent selection populations of
Kansas rosinseed
Perennial sunflower domestication program:
1 m
ete
rDomestication:
Helianthus maximilianii
(Maximilian sunflower)
Growing in natural
grassland ecosystemGrowing in research plots
Perennial sunflower domestication program:
Recurrent phenotypic selection of H. maximiliani for various agronomic traits.
Trait “Heritability”
Lodging score 0.39
Yield per area 0.32
Yield per stalk 0.51
Seed weight 0.46
Shattering 0.56
Plant Height 0.61
Maximilian sunflower
Seed size
Seeds/head
Yield per head
Yield per stalk
Yield per plant
Stalk diameter
Shatter resistance (2)
Shatter resistance (3)
Stalk density
Head clustering
Plant dwarfing
Foliar disease (2008)
Foliar disease (2007)
Index
8
1838
2108
Average of the ―top 50‖ genotypes
chosen for combined scores for
seed size, yield, etc. Overall these
are better than the population
mean, but never the best for any
one trait.
Seed size
Seeds/head
Yield per head
Yield per stalk
Yield per plant
Stalk diameter
Shatter resistance (2)
Shatter resistance (3)
Stalk density
Head clustering
Plant dwarfing
Foliar disease (2008)
Foliar disease (2007)
Index
8
1838
2108
1104
This genotype had reduced
shattering but also small heads—
would not have been included in
the ―top 50‖
-- -
++
Seed size
Seeds/head
Yield per head
Yield per stalk
Yield per plant
Stalk diameter
Shatter resistance (2)
Shatter resistance (3)
Stalk density
Head clustering
Plant dwarfing
Foliar disease (2008)
Foliar disease (2007)
Index
8
1838
2108
1104
This genotype had huge seeds
but higher-than-average
shattering.
+
-
-
-
•head size
•ligule number
•branching pattern
•leaf size/shape
Variation among the half-sib progeny of a single unusually apically dominant plant
Perennial sunflower domestication program:
Normal, branched formUnbranched
type
No-branching types
???
No heads!
= extreme
apical dominance?
Hexaploid perennials
--H. tuberosus
--H. rigidus
Diploid perennials
--H. maximiliani
--H. salicifolius
--H. grosseserratus
--H. giganteus
Diploid Annuals
--H. annuus (wild)
--H. annuus (crop)
--H. petiolaris
Tetraploid Breeding Population (68 chromosome)
containing genes from many species
X X Pollen: 17
chromosomes
Pollen: 17
chromosomes
Eggs: 51
chromosomesEggs: 51
chromosomes
2009 Sunflower populations
2009 Sunflower populations
Variation in head size between half-sib progeny of a cross between H. annuus and H. tuberosus.
Interspecific perennial sunflower program:
Greatest age of any plant structure (years)
0.11 10 100 1000
Ave
rag
e a
nn
ua
l se
ed
yie
ld (
kg
/ha
)
Long-lived trees
Shrubs, short-lived trees
Herbaceous
perennials
Annuals
Greatest age of any plant structure (years)
0.11 10 100 1000
Ave
rag
e a
nn
ua
l se
ed
yie
ld (
kg
/ha
)
Long-lived trees
Shrubs, short-lived treesHerbaceous
perennialsAnnuals
?
Greatest age of any plant structure (years)
0.11 10 100 1000
An
nu
al re
pro
du
ctive
effo
rt
Long-lived trees
Shrubs, short-lived trees
Herbaceous
perennials
Annuals
Stems, leaves (herbivory, frost, fire)
Roots, rhizomes
(drought, tillage, flooding)
structures frequently
lost due to ecological
disturbance:
Greatest age of any plant structure (years)
0.11 10 100 1000
Long-lived trees
Shrubs, short-lived trees
Herbaceous
perennials
Annuals
Stems, leaves (herbivory, frost, fire)
Roots, rhizomes
(drought, tillage, flooding)
Competition for light:
invest in trunks
Competition for water, nitrogen, space:
Invest in roots, rhizomes
Competition to colonize:
Invest in seeds
Strongest
Competition:
An
nu
al re
pro
du
ctive
effo
rt
Greatest age of any plant structure (years)
0.11 10 100 1000
Long-lived trees
Shrubs, short-lived trees
Herbaceous
perennials
Annuals
Stems, leaves (herbivory, frost, fire)
Roots, rhizomes
(drought, tillage, flooding)
Competition for light:
invest in trunks
Competition for water, nitrogen, space:
Invest in roots, rhizomes
Competition to colonize:
Invest in seeds
Few losses:
ability to invest in dispersal
(seeds, fruits), once established.
An
nu
al re
pro
du
ctive
effo
rt
Greatest age of any plant structure (years)
0.11 10 100 1000
Annual grains
An
nu
al re
pro
du
ctive
effo
rt
Greatest age of any plant structure (years)
0.11 10 100 1000
Annual grains
Nuts,
fruits
An
nu
al re
pro
du
ctive
effo
rt
Crop Product Dry matter
yielda
(kg ha-1)
Annual net
reproductive
effortb
Basis of
reproduct
ive effort
Source and
location
Malus x domestica
(apple)
Fruit (diaspore) 13,000 to
17,000
0.65 Mass Palmer (1988),
New Zealand
Elaeis guineensis (oil
palm)
Fruit plus seed 5000 to 9000 0.34
0.52
Mass
Energy
Corley (1983),
Malaysia
Cocos nucifera
(coconut palm)
Copra (seed
endosperm)
3000 to 6000 0.20
0.31
Mass
Energy
Corley (1983),
Malaysia
Elaeis guineensis Oil (kernel &
mesocarp)
Bunches (fruit &
peduncles)
6800
16,800
0.32
0.55
Energy
Energy
Wahid et al. (2004),
Malaysia
Olea europaea (olive) Fruit (whole,
with seed)
4600 0.54 Mass Villalobos et al.
(2006), Spain
Musa spp., genomes
AAB (plantain)
Fruit (whole,
seedless)
- 0.60 Mass Baiyeri (2002),
Nigeria
Vaccinium
corymbosum
(highbush blueberry)
Fruit (whole fruit
& seed)
- 0.55 Mass Pritts and Hancock
(1985), United
States
Greatest age of any plant structure (years)
0.11 10 100 1000
Annual grains
Nuts,
fruits
?
An
nu
al re
pro
du
ctive
effo
rt
Reference Common names Part harvested Species
Baileyb beet root Beta vulgaris
pigeon pea, red gram seed Cajanus cajan
hyacinth bean, lablab seed Dolichos lablab
sweet potato tuberous roots Ipomoea Batatas
tomato fruit Lycopersicon lycopersicum
cassava, manioc,
tapioca, yucca
tuberous root Manihot esculenta
runner bean seed Phaseolus coccineus
lima bean seed Phaseolus lunatus
castor-bean seed Ricinus communis
potato tuber Solanum tuberosum
Ploschuk, 2005 bladderpod seed Lesquerella fendleri
Smartt, 1990 chickling pea, khesari
dhal
seed Lathyrus sativus
goa bean seed, roots, fruit Psophocarpus
tetragonolobus
Greatest age of any plant structure (years)
0.11 10 100 1000
Annual grains Nuts,
fruits
An
nu
al re
pro
du
ctive
effo
rt
Bohrer (1972) Poland Glyceria fluitans
Mongolia Elymus giganteus
Arundo villosa
Bye (1985) Southwestern N.
America
Festuca octoflora
Distichlis palmeri
Doebley (1984)a Southwestern N.
America
Oryzopsis hymenoides b
O. miliacea
Sporobolus spp.
Eragrostis oxylepis
Glyceria spp.
Poa spp.
Elymus canadensis
Melica imperfecta
Stipa speciosa
Muhlenbergia asperifolia
Powers (1874) California Bromus carinatus
Chamberlin (1911) California B. marginatus
DeWet (1992) Chile B. mangoc
Vaughn et al. (2008) China Oryza rufipogond
Guo et al. (2007) China Zizania latifolia
Griffin and Rowlett
(1981)
Scandinavia Leymus arenarius
Weiss et al. (2004) Israel Puccinellia distans
Alopecurus arundinaceus
Bar-Yosef and Kislev
(1989)
Israel Elymus panormitanus
Secale montanum
Piperno et al. (2004) Israel Piptatherum holciforme
Puccinellia gigantea
Hordeum bulbosum
Willcox et al. (2007) Syria H. bulbosum
Hillman et al. (2001) Syria Stipa spp.
Harlan (1989) North Africa Aristida pungens
Panicum turgidum
West Africa Latipes senegalensis
Oryza longistaminata
Paspalum scrobiculatum
Smith (2006) India P. scrobiculatum
Coix lachrymale
Hillman et al. (1989) Southwest
Asia
S. montanumf
Perennial grasses harvested for grain
Greatest age of any plant structure (years)
0.11 10 100 1000
Annual grains Nuts,
fruits
Perennial root
and tuber crops
(potato, cassava,
yam, etc.)
An
nu
al re
pro
du
ctive
effo
rt
Greatest age of any plant structure (years)
0.11 10 100 1000
Annual grains Nuts,
fruits
Perennial root
and tuber crops
(potato, cassava,
yam, etc.)
An
nu
al re
pro
du
ctive
effo
rt
Asexual
propagation
(cuttings,
tubers,
grafts)
Greatest age of any plant structure (years)
0.11 10 100 1000
Annual
grains Nuts,
fruits
Perennial
grains
An
nu
al re
pro
du
ctive
effo
rt