Chromosomal phylogeny and geographical divergence in the Drosophila bipectinata complex

Genome ◽  
2005 ◽  
Vol 48 (3) ◽  
pp. 487-502 ◽  
Author(s):  
Yoshihiko Tomimura ◽  
Muneo Matsuda ◽  
Yoshiko N Tobari
Keyword(s):  
Standard Sequence ◽  
Drosophila Bipectinata ◽  
Drosophila Malerkotliana ◽  
Chromosomal Phylogeny

We have prepared reference polytene photographic maps as a standard sequence for the Drosophila bipectinata complex using structurally homozygous flies derived from a stock of Drosophila parabipectinata from Brunei, Borneo, in 1971. We found 87 inversions in the D. bipectinata complex and described their breakpoints on the reference maps. Only 2 arrangements were shared interspecifically: 2R-AB was shared with 3 species, D. parabipectinata, D. bipectinata, and Drosophila malerkotliana, and 3L-A was found in 2 species, D. parabipectinata and D. malerkotliana. The 2 subspecies of D. malerkotliana and the 2 subspecies of Drosophila pseudoananassae shared half of the total gene arrangements detected in each species. The number of different inversions found between species in the complex ranges from 7 (between D. parabipectinata and D. malerkotliana) to at least 24 (between D. bipectinata and D. pseudoananassae). On the basis of the characteristic differences of their gene arrangements, we propose a reliable chromosomal phylogeny of the D. bipectinata complex.Key words: chromosomal phylogeny, Drosophila bipectinata, inversion polymorphisms.

No character displacement for reproductive isolation between Drosophila bipectinata and Drosophila malerkotliana

Genome ◽  
1991 ◽  
Vol 34 (6) ◽  
pp. 849-852 ◽  
Author(s):  
B. N. Singh ◽  
Sujata Chatterjee
Keyword(s):  
Reproductive Isolation ◽  
Sexual Isolation ◽  
Character Displacement ◽  
Sympatric Populations ◽  
Allopatric Populations ◽  
Drosophila Bipectinata ◽  
Isolation Index ◽  
Drosophila Malerkotliana

To test whether character displacement for reproductive isolation between Drosophila bipectinata and Drosophila malerkotliana exists, the degree of sexual isolation was measured between their sympatric and allopatric populations. Although the isolation indices vary in different crosses, the average isolation index for sympatric populations is very close to that for allopatric populations. This shows no difference in the degree of sexual isolation between sympatric and allopatric populations of D. bipectinata and D. malerkotliana. Thus there is no evidence for the existence of character displacement for sexual isolation between these two closely related sympatric species.Key words: Drosophila bipectinata, Drosophila malerkotliana, sexual isolation, sympatric and allopatric populations.

scholarly journals On Crossing Between Drosophila bipectinata and Drosophila malerkotliana

CYTOLOGIA ◽  
1973 ◽  
Vol 38 (3) ◽  
pp. 425-436 ◽  
Author(s):  
A. P. Jha ◽  
S. M. Z. Rahman
Keyword(s):  
Drosophila Bipectinata ◽  
Drosophila Malerkotliana

Heavy minerals solve structural and stratigraphic problems in Ordovician strata of the western Irish Caledonides

2003 ◽  
Vol 140 (1) ◽  
pp. 25-30 ◽  
Author(s):  
MARIA A. MANGE ◽  
JOHN F. DEWEY ◽  
DAVID T. WRIGHT
Keyword(s):  
Island Arc ◽  
Heavy Minerals ◽  
Metamorphic Complex ◽  
The South ◽  
Standard Sequence ◽  
Western Ireland ◽  
Complex Parts ◽  
Wide Horizon

Heavy minerals in Ordovician successions in western Ireland record, in the Upper Arenig Sheeffry Formation, the erosion of an ophiolite/island arc complex. The appearance of staurolite and garnet at a basin-wide horizon in the Lower Llanvirn Upper Derrylea Formation signals the unroofing of the Dalradian metamorphic complex. Parts of the Ordovician sequence on Inishturk and in two small inliers are correlated with the standard sequence with unexpected results. The garnet-, sillimanite-, and staurolite-bearing Letter Formation correlates with the Upper Derrylea Formation and, on Inishturk, heavy minerals in south-younging turbidites reveal a sinistral ramp zone, that places the Sheeffry Formation structurally above and to the south of the younger Derrylea Formation.

Homogeneous Photometry. IV. On the Standard Sequence in the Globular Cluster NGC 2419

2005 ◽  
Vol 117 (832) ◽  
pp. 563-588 ◽  
Author(s):  
Peter B. Stetson
Keyword(s):  
Globular Cluster ◽  
Standard Sequence

A new stellar standard sequence in the coma cluster of galaxies. (preliminary report)

1978 ◽  
Vol 299 (3) ◽  
pp. 117-120 ◽  
Author(s):  
F. Börngen ◽  
N. Richter
Keyword(s):  
Preliminary Report ◽  
Coma Cluster ◽  
Standard Sequence ◽  
Cluster Of Galaxies

scholarly journals Chromosomal phylogeny of the Drosophila fasciola species subgroup revisited (Diptera, Drosophilidae)

2004 ◽  
Vol 27 (4) ◽  
pp. 561-566 ◽  
Author(s):  
Nilda Maria Diniz ◽  
Fabio Melo Sene
Keyword(s):  
Fasciola Species ◽  
Chromosomal Phylogeny

scholarly journals The so-called Turonian-Coniacian boundary in Japan

1984 ◽  
Vol 33 ◽  
pp. 171-181
Author(s):  
Tatsuro Matsumoto
Keyword(s):  
Environmental Conditions ◽  
European Standard ◽  
Standard Sequence ◽  
Reference Sections ◽  
Mode Of Occurrence

The Mikasa area of central Hokkaido provides a series of reference sections of an Upper Turonian and Coniacian mega-fossil sequence. There are four places within the area where continuous outcrops are visible and these are described in detail. There is considerable variation in the mode of occurrence of ammonite and inoceramid species from place to place, probably as a result of changes in environmental . conditions. A revised scheme of zonation is established for the Upper Turonian and the Coniacian in the Japanese province, as shown in Table 1. The boundary between the stages is tentatively drawn between the Zone of lnoceramus teshioensis-Mytiloides incertus-Subprionocyclus neptunibelow and the Zone of Inoceramus rotundatus-Forresteria (Reesideoceras) petrocoriensis above, and is very probably equivalent to the Turonian/Coniaccian stage boundary in the European standard sequence. Some species in the zonal assemblages recognized are useful for tracing the boundary into other regions.

scholarly journals Chromosomal phylogeny of Vampyressine bats (Chiroptera, Phyllostomidae) with description of two new sex chromosome systems

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Anderson José Baia Gomes ◽  
Cleusa Yoshiko Nagamachi ◽  
Luis Reginaldo Ribeiro Rodrigues ◽  
Thayse Cristine Melo Benathar ◽  
Talita Fernanda Augusto Ribas ◽  
...  
Keyword(s):  
Sex Chromosome ◽  
Chromosomal Phylogeny
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