EurekaMag.com logo
+ Site Statistics
References:
54,215,046
Abstracts:
30,230,908
PMIDs:
28,215,208
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Normal microspore production after cell fusion in Brachiaria jubata (Gramineae)



Normal microspore production after cell fusion in Brachiaria jubata (Gramineae)



Genetics and Molecular Biology 26(4): 517-520



Cytogenetic studies were carried out on 22 accessions of B. jubata from the Embrapa Beef Cattle Brachiaria collection. One accession was diploid (2n=2x=18) and the remaining 21 were tetraploid (2n=4x=36). Among five tetraploid accessions, a specific and constant pattern of cell fusion involving only two microsporocytes was recorded. Meiosis proceeded normally from prophase I to the end, giving rise to an octad with normal microspores that developed into fertile pollen grains.

(PDF emailed within 0-6 h: $19.90)

Accession: 004250674

Download citation: RISBibTeXText

DOI: 10.1590/s1415-47572003000400016



Related references

Chromosome number and meiotic behaviour in Brachiaria jubata (Gramineae). Journal of Genetics 85(1): 83-87, 2006

Absence of microspore polarity, symmetric divisions and pollen cell fate in Brachiaria decumbens (Gramineae). Genome 46(1): 83-88, 2003

Symmetric pollen mitosis I and suppression of pollen mitosis II prevent pollen development in Brachiaria jubata (Gramineae). Brazilian Journal of Medical and Biological Research 38(11): 1603-1608, 2005

Abnormal pollen mitoses (PM I and PM II) in an interspecific hybrid of Brachiaria ruziziensis and Brachiaria decumbens (Gramineae). Journal of Genetics 83(3): 279-283, 2004

Abnormal pollen mitoses (PM I and PM II) in an interspecific hybrid of Brachiaria ruziziensis and Brachiaria decumbens (Gramineae). Journal of Genetics 83(3): 279-283, 2005

Apomixis in cortaderia jubata gramineae. New Zealand Journal of Botany 16(1): 45-60, 1978

Embryogeny of Cortaderia selloana and C. jubata (Gramineae). Botanical Gazette 140(4): 393-397, 1979

Antibiosis of the cercopids Zulia colombiana Lallemand and Aeneolamia reducta Lallemand in Brachiaria jubata. Revista Colombiana de Entomologia 17(1): 16-20, 1991

Cell fusion and cytomixis during micro sporogenesis in Brachiaria humidicola (Poaceae). South African Journal of Botany 72(3): 478-481, 2006

Abnormal meiotic behavior in Brachiaria brizantha (Poaceae) leading to microspore degeneration. Caryologia 58(4): 396-402, 2005

A noteworthy new species of Brachiaria (Gramineae. Bull. Jard. bot, Brux., 28: 1, 77-81. bibl. 2, 1958

Embryogeny of cortaderia selloana and cortaderia jubata gramineae. Botanical Gazette 140(4): 393-397, 1979

Brachiaria, Urochloa (Gramineae-Paniceae) in Malesia. Blumea 41(2): 413-437, 1996

Note on an Eriochloa callus in Brachiaria lachnantha (Gramineae). Willdenowia 18(2): 479-481, 1989