ICAR Research Data Repository for Knowledge Management
New evidence on the phylogeny of basic chromosome number in Pennisetum
OAR@ICRISAT
View Archive Info| Field | Value | |
| Relation |
http://oar.icrisat.org/5550/
http://cs-test.ias.ac.in/cs/php/toc.php?vol=058&issue=15 |
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| Title |
New evidence on the phylogeny of basic chromosome number in Pennisetum
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| Creator |
Rao, Y S
Rao, S A Mengesha, M H |
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| Subject |
Genetics and Genomics
Plant Pathology |
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| Description |
Meiosis was studied in P. ramosum, P. schweinfurthii and P. mezianum. Chromosome pairing was normal in P. ramosum (2n = 10) with the formation of 5 ring bivalents. In 30% of the P. schweinfurthii (2n = 14) PMCs analysed 2 trivalents and 4 bivalents were formed. Pollen fertility was 73%. P. mezianum (2n = 16) had mostly bivalents at diakinesis and metaphase I. In 23% of PMCs 2 trivalents/cell were noted. Pollen stainability was 83%. Trivalent formation suggests chromosome duplication in P. mezianum and P. schweinfurthii. It is assumed that the chromosome complement in Pennisetum has evolved from a base number of 5.
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| Publisher |
Indian Academy of Sciences
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| Date |
1989
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Language |
en
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| Rights |
—
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| Identifier |
http://oar.icrisat.org/5550/1/CurrentScience_58_15_869-871_1989.pdf
Rao, Y S and Rao, S A and Mengesha, M H (1989) New evidence on the phylogeny of basic chromosome number in Pennisetum. Current Science, 58 (15). pp. 869-871. ISSN 0011-3891 |
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