Use of unreduced gametes of diploid potato (Solanum tuberosum L.) for true potato seed [TPS] production through 4x-2x crosses

D. Qu

Research output: Thesisinternal PhD, WUAcademic

Abstract

The thesis describes the genetic bases of 2n-pollen formation. A comparison was made of the frequencies of 2n-pollen production in a different environment using the progeny of diallel crosses between five well-known diploid clones and three clones of <em>Solanum phureja.</em> It was evident that this character has a complex type of inheritance; through repeated cycles of selection for 2n-pollen a four-fold increase could be achieved at population level. Through proper selection of diploid male parents it was established that 2n-pollen genotypes can be effective for transferring useful characters, like bacterial wilt resistance, in 4x-2x crosses. The progenies derived from 4x-2x, 4x-4x and 4x-selfings were compared to find the optimal breeding approach for the production of TPS varieties. There were clear indications that it was possible to breed TPS varieties directly by 4x-2x crosses. This means that the advantages of breeding at diploid level and the effective transfer of desirable Units by 2n-gametes can be used in the TPS breeding.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
Supervisors/Advisors
  • Jacobsen, Evert, Promotor
  • Ramanna, M.S., Co-promotor, External person
  • Dewei, Z., Co-promotor, External person
Award date12 Feb 1996
Place of PublicationS.l.
Publisher
Print ISBNs9789054854838
Publication statusPublished - 1996

Fingerprint

seed productivity
Solanum tuberosum
seed tubers
germ cells
diploidy
potatoes
pollen
breeding
Solanum tuberosum subsp. andigenum
clones
bacterial wilt
diallel analysis
selfing
genetic background
inheritance (genetics)
breeds
genotype

Keywords

  • solanum tuberosum
  • potatoes
  • seeds
  • seed testing
  • spores
  • propagation
  • crops
  • species

Cite this

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title = "Use of unreduced gametes of diploid potato (Solanum tuberosum L.) for true potato seed [TPS] production through 4x-2x crosses",
abstract = "The thesis describes the genetic bases of 2n-pollen formation. A comparison was made of the frequencies of 2n-pollen production in a different environment using the progeny of diallel crosses between five well-known diploid clones and three clones of Solanum phureja. It was evident that this character has a complex type of inheritance; through repeated cycles of selection for 2n-pollen a four-fold increase could be achieved at population level. Through proper selection of diploid male parents it was established that 2n-pollen genotypes can be effective for transferring useful characters, like bacterial wilt resistance, in 4x-2x crosses. The progenies derived from 4x-2x, 4x-4x and 4x-selfings were compared to find the optimal breeding approach for the production of TPS varieties. There were clear indications that it was possible to breed TPS varieties directly by 4x-2x crosses. This means that the advantages of breeding at diploid level and the effective transfer of desirable Units by 2n-gametes can be used in the TPS breeding.",
keywords = "solanum tuberosum, aardappelen, zaden, zaadcontrole, sporen, plantenvermeerdering, gewassen, soorten, solanum tuberosum, potatoes, seeds, seed testing, spores, propagation, crops, species",
author = "D. Qu",
note = "WU thesis 2050 Proefschrift Wageningen",
year = "1996",
language = "English",
isbn = "9789054854838",
publisher = "Qu",

}

Use of unreduced gametes of diploid potato (Solanum tuberosum L.) for true potato seed [TPS] production through 4x-2x crosses. / Qu, D.

S.l. : Qu, 1996. 104 p.

Research output: Thesisinternal PhD, WUAcademic

TY - THES

T1 - Use of unreduced gametes of diploid potato (Solanum tuberosum L.) for true potato seed [TPS] production through 4x-2x crosses

AU - Qu, D.

N1 - WU thesis 2050 Proefschrift Wageningen

PY - 1996

Y1 - 1996

N2 - The thesis describes the genetic bases of 2n-pollen formation. A comparison was made of the frequencies of 2n-pollen production in a different environment using the progeny of diallel crosses between five well-known diploid clones and three clones of Solanum phureja. It was evident that this character has a complex type of inheritance; through repeated cycles of selection for 2n-pollen a four-fold increase could be achieved at population level. Through proper selection of diploid male parents it was established that 2n-pollen genotypes can be effective for transferring useful characters, like bacterial wilt resistance, in 4x-2x crosses. The progenies derived from 4x-2x, 4x-4x and 4x-selfings were compared to find the optimal breeding approach for the production of TPS varieties. There were clear indications that it was possible to breed TPS varieties directly by 4x-2x crosses. This means that the advantages of breeding at diploid level and the effective transfer of desirable Units by 2n-gametes can be used in the TPS breeding.

AB - The thesis describes the genetic bases of 2n-pollen formation. A comparison was made of the frequencies of 2n-pollen production in a different environment using the progeny of diallel crosses between five well-known diploid clones and three clones of Solanum phureja. It was evident that this character has a complex type of inheritance; through repeated cycles of selection for 2n-pollen a four-fold increase could be achieved at population level. Through proper selection of diploid male parents it was established that 2n-pollen genotypes can be effective for transferring useful characters, like bacterial wilt resistance, in 4x-2x crosses. The progenies derived from 4x-2x, 4x-4x and 4x-selfings were compared to find the optimal breeding approach for the production of TPS varieties. There were clear indications that it was possible to breed TPS varieties directly by 4x-2x crosses. This means that the advantages of breeding at diploid level and the effective transfer of desirable Units by 2n-gametes can be used in the TPS breeding.

KW - solanum tuberosum

KW - aardappelen

KW - zaden

KW - zaadcontrole

KW - sporen

KW - plantenvermeerdering

KW - gewassen

KW - soorten

KW - solanum tuberosum

KW - potatoes

KW - seeds

KW - seed testing

KW - spores

KW - propagation

KW - crops

KW - species

M3 - internal PhD, WU

SN - 9789054854838

PB - Qu

CY - S.l.

ER -