Chromosome duplication in Lolium multiflorum Lam.

Author:

Pereira Roselaine Cristina1,Ferreira Marco Túlio Mendes1,Davide Lisete Chamma1,Pasqual Moacir2,Mittelmann Andréa3,Techio Vânia Helena1

Affiliation:

1. Federal University of Lavras, Brazil

2. UFLA

3. Embrapa Dairy Cattle

Abstract

Artificial chromosome duplication of diploid genotypes of Lolium multiflorum (2n=2x=14) is worthy to breeding, and aims to increase the expression of traits with agronomic interest. The purpose of this study was to obtain polyploid plants of L. multiflorum from local diploid populations in order to exploit adaptation and future verification of the effects of polyploidy in agronomic traits. Seedlings were immersed in different colchicine solutions for an exposure time of 3h and 24h. Ploidy determination was made by the DNA content and certified by chromosomes counts. The plants confirmed as tetraploids were placed in a greenhouse, and, at flowering, pollen viability was evaluated, and seeds were harvested to assess the stability of the progenies. The percentage of polyploids obtained was 20%. Pollen viability of the tetraploids generated ranged from 58% to 69%. The tetraploid plants obtained in the experiment generated 164 progenies, of which 109 presented DNA content compatible with the tetraploid level, showing stability of chromosome duplication in the filial generation.

Publisher

FapUNIFESP (SciELO)

Subject

General Medicine

Reference20 articles.

1. Chromosome doubling in a Rosa rugosa Thunb. hybrid by exposure of in vitro nodes to oryzalin: the effects of node length, oryzalin concentration and exposure time;Allum JF;Plant Cell Report,2007

2. Duplicação cromossômica de híbridos triploides de capim elefante e milheto;Barbosa S;Bragantia,2007

3. In vitro induction of hexaploid plants from triploid hybrids of Pennisetum purpureum and Pennisetum glaucum;Campos JMS;Plant Breeding,2009

4. Changes in allele frequencies in colchicine-treated ryegrass populations assessed with RAPD markers;Castro CM;Revista Brasileira de Agrociência,2003

5. Mitotic chromosome doubling of plant tissues in vitro;Dhooghe E;Plant Cell, Tissue and Organ Culture,2011

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