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AOBPreview published online on July 15, 2006
Annals of Botany, doi:10.1093/aob/mcl143
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© The Author 2006. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org
Received October 6, 2005
Revised February 17, 2006
Accepted May 23, 2006

Article

Morphological and Molecular Characterization of Bambusa tulda with a Note on Flowering

SAMIK BHATTACHARYA 1 {dagger}, MALAY DAS 2 {dagger}, RADHARAMAN BAR 1, and AMITA PAL 1 *

1 Plant Molecular and Cellular Genetics, Bose Institute, P 1/12 CIT Scheme VIIM, Kolkata-700054, India
2 Plant Molecular and Cellular Genetics, Bose Institute, P 1/12 CIT Scheme VIIM, Kolkata-700054, India; Present address: US Environmental Protection Agency, Western Ecology Division, 200 SW 35th Street, Corvallis, OR, USA

* To whom correspondence should be addressed.
AMITA PAL, E-mail: amita{at}bic.boseinst.ernet.in


  Abstract

• Background and Aims Flowering incidence in Bambusa tulda has a high socio-economic impact. The aim of the present study was to describe the species for morphological characters (vegetative and reproductive) as well as molecular markers in order to enable species identification at various stages of the life cycle.

• Methods Thirty-two key morphological characters (15 culm and 17 culm-sheath) were studied along with detailed inflorescence and floral characters. Incidence of sporadic flowering was recorded. Genomic DNA was isolated from leaves collected from 17 eco-geographical locations and RAPD profiles were generated.

• Key Results The description of culm, culm-sheath, inflorescence and floral morphology are in agreement with the prior taxonomic description by Gamble in 1896, but in this communication a more detailed description and illustrations are presented. No seed set was recorded following sporadic flowering, probably due to prezygoting isolating mechanisms (herkogamy or protandry). All 17 populations surveyed generated identical RAPD profiles.

• Conclusions Sporadic flowering may occur in B. tulda, but may not necessarily be followed by gregarious flowering, and does not result in seed production.

Keywords: Bambusa tulda, culm, culm-sheath, floral morphology, RAPD, sporadic flowering.
{dagger} Both these authors contributed equally in this study.
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