Identification of the trisomic series in diploid Solanum tuberosum L. group Tuberosum. II. Trivalent configurations at pachytene stage

Wagenvoort, M.; Ramanna, M.S.

doi:10.1007/bf00038929

Cited by 14 publications

(6 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…t. ssp . tuberosum byWagenvoort & Ramanna (1979) . They revealed that in primary trisomics very frequently all three homologous chromosomes were found to be paired for a considerable part of their length .…”

mentioning

confidence: 99%

Spontaneous structural rearrangements in Solanum tuberosum ssp. phureja: 1. Chromosome identification at pachytene stage

Wagenvoort¹

1988

Euphytica

Self Cite

View full text Add to dashboard Cite

Meiosis was studied from pachytene and onwards in two clones of S.t. ssp . phureja . At pachytene the bivalents of S . t. ssp . phureja appeared to be morphologically very similar to those of S . t. ssp . tuberosum cv .Gineke . Cross-shaped quadrivalent configurations at pachytene confirmed the presence of a heterozygous interchange . From the configurations at pachytene it was identified that the short arm of chromosome 3 and possibly one of the arms of chromosome 12 was involved in the interchange .In addition, several abnormalities were observed : these included the occurrence of loops in eu-and heterochromatic parts, non-homologous pairing and centromere associations between different bivalents .

show abstract

mentioning

confidence: 99%

Spontaneous structural rearrangements in Solanum tuberosum ssp. phureja: 1. Chromosome identification at pachytene stage

Wagenvoort¹

1988

Euphytica

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is obviously due to its autotetraploidy, the gametophytic imcompatibility in nearly all related diploid species, and its vegetative propagation, which promotes the accumulation of recessive (sub)lethal genes (Dodds & Paxmann, 1962 ;Simmonds, 1966 ;Wagenvoort, 1982 ;Douches & Quiros, 1988b) . In addition, gene localization has been hampered by the genetic heterogeneity of the trisomic series and relatively difficult chromosome identification (Ramanna & Wagenvoort, 1976 ;Wagenvoort & Ramanna, 1979) . Despite these difficulties, a rapid development of the genetic map of potato may be expected with the recent initiation of isozyme marker analysis (Staub et al ., 1984 ;Quiros & McHale, 1985 ;Douches & Quiros, 1988b), the exploration of DNA-markers and attempts to simplify gene-localization through the development of a homogeneous trisomic series and in situ hybridization techniques .…”

Section: Introductionmentioning

confidence: 99%

Analysis of glutamate oxaloacetate transaminase (GOT) isozyme variants in diploid tuberous Solanum; inheritance and linkage relationships to ds1 (desynapsis), y (tuber flesh colour), cr (crumpled) and yc (yellow cotyledon)

Jongedijk¹,

Wolk²,

Suurs³

1990

Euphytica

View full text Add to dashboard Cite

Employing polyacrylamide gradient-gel electrophoresis, the genetic control of leaf glutamate oxaloacetate transaminase (GOT) isozyme variants and their linkage to dsl (desynapsis), y (tuber flesh colour), cr (crumpled) and yc (yellow cotyledon) were studied in diploid tuberous Solanum species hybrids .Leaf GOT isozymes proved to be dimeric and under the control of two independently segregating loci (Got-1 and Got-2) with two (Is, 1t) and three (2s, 2j, 2") alleles respectively . The 2" allele was concluded to encode a 2f allozyme subunit capable of forming heterodimeric but no homodimeric active molecules . As expected with Got-1 and Got-2 isozymes being localized in different cellular compartments, no intergenic heterodimer formation was observed .In contrast to earlier studies, a gradual rather than discrete transition between the tuber flesh colour classes white and yellow was observed in segregating progenies . Adopting a standardized classification method, however, monogenic recessive inheritance of white tuber flesh was confirmed .Got-1, dsl and cr were found to represent a single linkage group . Among the presently studied marker loci no further linkages were detected . As to linkage analysis, the difficulties imposed by gametophytic incompatibility in nearly all diploid potato species and by the frequent occurrence of recessive (sub)lethal genes are discussed .

show abstract

“…Pachytene analysis as a method of identifying trisomies has, however, been limited to a very small number of species, due to technical difficulties or difficulties in distinguishing individual members of the chromosome complement (KHUSH 1973). Lycopersicon esculentum (RICK and BARTON 1954;RICK et al 1964;RicK and KHUSH 1966) and Solanum tuberosum (WAGENVOORT and RAMANNA 1979) are species whose pachytene chromosomes have been used extensively to identify trisomies. JAKOB (1960) was the first to describe a trisomic in castor.…”

Section: Introductionmentioning

confidence: 99%

Cytological Observations of a Primary Nucleolar Trisomic inRicinus CommunisL.

Paris

1981

Caryologia

View full text Add to dashboard Cite

show abstract

Identification of the trisomic series in diploid Solanum tuberosum L. group Tuberosum. II. Trivalent configurations at pachytene stage

Cited by 14 publications

References 17 publications

Spontaneous structural rearrangements in Solanum tuberosum ssp. phureja: 1. Chromosome identification at pachytene stage

Spontaneous structural rearrangements in Solanum tuberosum ssp. phureja: 1. Chromosome identification at pachytene stage

Analysis of glutamate oxaloacetate transaminase (GOT) isozyme variants in diploid tuberous Solanum; inheritance and linkage relationships to ds1 (desynapsis), y (tuber flesh colour), cr (crumpled) and yc (yellow cotyledon)

Cytological Observations of a Primary Nucleolar Trisomic inRicinus CommunisL.

Contact Info

Product

Resources

About