The effect of trisomy on meiotic behaviour of interchange complexes in pearl millet, Pennisetum americanum (L.) leeke

K. V. Lakshmi; P. R K Koduru; T. G K Murthy; M. Krishna Rao

doi:10.1007/BF00272851

The effect of trisomy on meiotic behaviour of interchange complexes in pearl millet, Pennisetum americanum (L.) leeke

K. V. Lakshmi, P. R K Koduru, T. G K Murthy, M. Krishna Rao

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In the selfed progeny of a spontaneously produced triploid interchange heterozygote four different double trisomic plants were observed. In all the plants the frequency of alternate orientation of multivalents was lower compared to their respective types in the sib single trisomic plants. The frequency of alternate co-orientation of the interchange complex in these trisomics was also reduced compared to that of parental euploid disomic interchange heterozygotes. It is suggested that the presence of extra chromosomes influences the orientation behaviour of higher associations in different trisomics.

Original language	English (US)
Pages (from-to)	333-336
Number of pages	4
Journal	Theoretical and Applied Genetics
Volume	61
Issue number	4
DOIs	https://doi.org/10.1007/BF00272851
State	Published - Dec 1 1982

Keywords

Meiotic behaviour
Pennisetum americanum
Trisomy

ASJC Scopus subject areas

Biotechnology
Agronomy and Crop Science
Genetics

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abstract = "In the selfed progeny of a spontaneously produced triploid interchange heterozygote four different double trisomic plants were observed. In all the plants the frequency of alternate orientation of multivalents was lower compared to their respective types in the sib single trisomic plants. The frequency of alternate co-orientation of the interchange complex in these trisomics was also reduced compared to that of parental euploid disomic interchange heterozygotes. It is suggested that the presence of extra chromosomes influences the orientation behaviour of higher associations in different trisomics.",

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AU - Murthy, T. G K

AU - Krishna Rao, M.

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AB - In the selfed progeny of a spontaneously produced triploid interchange heterozygote four different double trisomic plants were observed. In all the plants the frequency of alternate orientation of multivalents was lower compared to their respective types in the sib single trisomic plants. The frequency of alternate co-orientation of the interchange complex in these trisomics was also reduced compared to that of parental euploid disomic interchange heterozygotes. It is suggested that the presence of extra chromosomes influences the orientation behaviour of higher associations in different trisomics.

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The effect of trisomy on meiotic behaviour of interchange complexes in pearl millet, Pennisetum americanum (L.) leeke

Abstract

Keywords

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