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Table 4 Activities involved in a traditional breeding strategy compared with a simple example of how genomic selection (GS) could be employed in a breeding program. The number of years involved in each activity for the two strategies is shown. Information for traditional breeding is adapted from Topp, Hardner [13]. RVT, regional variety trial; SPT, seedling progeny trial

From: Genomic selection and genetic gain for nut yield in an Australian macadamia breeding population

Year

Traditional breeding

Genomic selection

1

Cross parents, grow seedlings

Cross parents, grow seedlings

2

Age 1: Plant SPT

Genotype, select seedlings using GS

3

Age 2: Trial maintenance

Propagate RVT

4

Age 3: Trial maintenance

Age 1: Plant RVT

5

Age 4: Field evaluations

Age 2: Trial maintenance

6

Age 5: Field evaluations

Age 3: Trial maintenance

7

Age 6: Field evaluations

Age 4: Field evaluations

8

Age 7: Field evaluations

Age 5: Field evaluations

9

Age 8: Field evaluations, select seedlings

Age 6: Field evaluations

10

Propagate RVT

Age 7: Field evaluations

11

Age 1: Plant RVT

Age 8: Field evaluations

12

Age 2: Trial maintenance

Age 9: Field evaluations

13

Age 3: Trial maintenance

Age 10: Field evaluations

14

Age 4: Field evaluations

Release

15

Age 5: Field evaluations

 

16

Age 6: Field evaluations

 

17

Age 7: Field evaluations

 

18

Age 8: Field evaluations

 

19

Age 9: Field evaluations

 

20

Age 10: Field evaluations

 

21

Release

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