Evidence for the association of homologous chromosomes during premeiotic stages inImpatiens andSalvia (original) (raw)

Abstract

Chromocenters in the last premeiotic interphase nuclei of_Impatiens balsamina_ (2n=14) and_Salvia nemorosa_ (2n=14) were found to be associated in groups of two's, some times so closely that only the haploid number was seen. In_Impatiens balsamina_, the chromosomes during the mitotic prophase in sporogenous cells and the chromocenters in the root tip cells were observed to be homologously aligned. It is concluded on the basis of their morphology that the homologous chromocenters remain associated in pairs at least during the last premeiotic interphase and loosely aligned in other tissues of the plants studied.

Similar content being viewed by others

Crossover patterning in plants

Article Open access 14 July 2022

References

• Abel, W. O.: Über den Zeitpunkt des Crossing-over und der Chromosomenverdopplung bei_Spherocarpus_. Z. Vererbungsl.96, 228–233 (1965).
  Google Scholar
• —: Intergenische Rekombination und Chromosomenreduplikation. Ber. dtsch. bot. Ges.80, 517–522 (1967).
  Google Scholar
• Bhattacharjya, S. S.: Die Wirkung von Röntgenstrahlen auf Kerne mit verschiedener heteroehromatischer Konstitution. Chromosoma (Berl.)9, 305–318 (1958).
  Google Scholar
• Butterfass, Th.: Gepaarte Chromosomen in zwei mitotischen Metaphasen von diploiden Zuckerrüben. Chromosoma (Berl.)20, 442–444 (1967).
  Google Scholar
• Czeika, G.: Strukturveränderungen endopolyploider Ruhekerne im Zusammenhang mit wechselnder Bündelung der Tochterchromosomen und karyologischanatomische Untersuchungen an Sukkulenten. Öst. bot. Z.103, 536–566 (1956).
  Google Scholar
• Grell, R. F.: Pairing at the chromosomal level. J. comp. cell. Physiol.70 (Suppl. 1), 119–146 (1967).
  Google Scholar
• —, andA. C. Chandley: Evidence bearing the coincidence of exchange and DNA replication in the oocyte of_Drosophila melanogaster_. Proc. nat. Acad. Sci. (Wash.)53, 1340–1346 (1965).
  Google Scholar
• Linert, G.: Die Struktur der Pachytänchromosomen in Euchromatin und Heterochromatin und ihre Auswirkung auf die Chiasmabildung bei_Salvia_-Arten. Chromosoma (Berl.)7, 90–128 (1955).
  Google Scholar
• Maguire, M.: Evidence for homologous pairing of chromosomes prior to meiotic prophase in maize. Chromosoma (Berl.)21, 221–231 (1967a).
  Google Scholar
• —: Studies on the effect of temperature treatment on intergenic and intragenic recombination. Maize Genetics Cooperation News Letter41, 177–179 (1967b).
  Google Scholar
• Reitberger, A.: Über polyploide Ruhekerne bei Cruciferen. Naturwissenschaften36, 380 (1949).
  Google Scholar
• —: Ruhekernuntersuchungen bei gesunden und viruskranken Diploiden und Polyploiden von_Beta vulgaris_. Züchter26, 106–117 (1956).
  Google Scholar
• Reitberger, A.: Methodische Untersuchungen zur Ploidiebestimmung an Ruhekernen. I.Trifolium pratense und_Trifolium hybridum_. Züchter34, 129–135 (1964).
  Google Scholar
• Scherz, C.: Die Chromosomenstruktur in der meiotischen Prophase einiger Compositen. Chromosoma (Berl.)8, 447–457 (1957).
  Google Scholar
• Tischler, G.: Allgemeine Pflanzenkaryologie, 2. Aufl., 2. Hälfte, 1040 S. Berlin: Gebrüder Bornträger 1951.
  Google Scholar
• Tschermak-Woess, E.: Strukturtypen der Ruhekerne. Protoplasmatologia V/1. Wien: Springer 1963.
  Google Scholar
• —: Cytological observations on plant meiosis and giant chromosomes. In: Effects of radiation on meiotic systems, p. 107–112. Vienna: IAEA 1968.
  Google Scholar

Download references

Author information

Authors and Affiliations

1. Max-Planck-Institut für Pflanzengenetik, Ladenburg am Neckar, Rosenhof
   K. P. S. Chauhan & W. O. Abel
2. Dept. of Plant Breeding Agricultural College, U. P. Agricultural University, Patnagar (Nainital), India
   K. P. S. Chauhan

Authors

1. K. P. S. Chauhan
2. W. O. Abel

Additional information

This work was supported by a German Academic Exchange Service (DAAD) Scholarship awarded toK. P. S. Chauhan, who is thankful to Prof. Dr.E. Knapp for kindly providing the necessary facilities to carry out this work at his Institut.

Rights and permissions

About this article

Cite this article

Chauhan, K.P.S., Abel, W.O. Evidence for the association of homologous chromosomes during premeiotic stages in_Impatiens_ and_Salvia_.Chromosoma 25, 297–302 (1968). https://doi.org/10.1007/BF01183122

Download citation

• Received: 09 August 1968
• Issue date: September 1968
• DOI: https://doi.org/10.1007/BF01183122

Keywords