Wyniki wyszukiwania - AGRO

1

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Roztocze [Cheliceromorpha, Arachnida: Acari], uwagi o filogenii i ewolucji

100%

Blaszak C.

Wiadomości Parazytologiczne

|

1995

|

tom 41

|

nr 3

245-251

2

Znaczenie materialow kopalnych w badaniach nad filogeneza i biogeografia historyczna owadow

88%

Szadziewski R.

Wiadomości Entomologiczne. Suplement

|

2008

|

tom 27

89-104

Fossil materials are shown to be important for testing phylogenetic and biogeographic hypotheses based on extant insects. Fossil records indicate that paraphyletic groups are common in classification of insects. Extant genera of biting midges (Ceratopogonidae) noted in the fossil record are reviewed and their age and distribution analyzed. The oldest extant genera are at least 125 million years old. The share of extant genera in the fossil record gradually grows from 20% in the Lower Cretaceous to 100% in the Oligocene -Miocene. Most of the extant genera have or had a wide (mostly global) distribution. Limited distributions on the Southern Hemisphere concern the relict genera Austroconops, Metahelea, Meunierohelea and Physohelea, which have fossil records on the Northern Hemisphere. A wide distribution, present or past, of most genera of the biting midges analyzed, indicates that complete land bridges or continental drifts did not have a significant influence on their migrations onto new territories. The distribution of biting midges supports views that ecological conditions determined mostly by climate and competition are the most important factors influencing insect distribution. Biogeographic scenarios based exclusively on recent distributions of extant fauna should be treated with great caution.

3

Zasady systematyki ewolucyjnej

88%

Pokryszko B. M.

Przegląd Zoologiczny

|

1989

|

tom 33

|

nr 4

4

Fitogeneza mięczaków (Mollusca) z neontologicznego punktu widzenia

88%

Serafinski W., Strzelec M.

Przegląd Zoologiczny

|

1988

|

tom 32

|

nr 2

5

Nowe-stare poglady na systematyke i filogeneze nicieni [Nematoda], ze szczegolnym uwzglednieniem Ascaridida, Ascaridoidea

88%

Okulewicz A., Lonc E.

Wiadomości Parazytologiczne

|

2001

|

tom 47

|

nr 3

263-268

Traditional classification of the nematodes, based on morphological-ecological characters was evaluated in the context of molecular analysis of systematic taxons, with special regards to ascarids. Division of superfamily Ascaridoidea into 4 families (Heterocheilidae, Ascarididae, Anisakidae, Raphidascarididae) proposed by Fagerhholm (1991) seems to be proved by the molecular data of Nadler (1992, 1995) and Nadler & Hudspeth (1998).

6

Inteiny - budowa, funkcje biologiczne i filogeneza

88%

Serwecinska L., Staczek P., Jaworski A.

Postępy Mikrobiologii

|

2004

|

tom 43

|

nr 1

59-76

7

Morfologia, filogeneza i klasyfikacja chrzaszczy z rodziny Erotylidae

88%

Wegrzynowicz P.

Działalność Naukowa PAN. Wybrane Zagadnienia

|

2003

|

tom 16

60-62

8

Poznanie stanowiska systematycznego konodontow - wielkie odkrycie paleontologiczne XX wieku

88%

Szaniawski H.

Kosmos

|

1996

|

tom 45

|

nr 4

645-656

9

Próba filogenetycznego objaśnienia istoty woreczka zalążkowego i podwójnego zapłodnienia u roślin okrytozalążkowych (Ciąg dalszy)

88%

Woycicki Z.

Wszechświat

|

1908

|

tom 27

|

nr 04

10

Significance of follicle anatomy of Apocynaceae

75%

Thomas V., Dave Y.

Acta Societatis Botanicorum Poloniae

|

1994

|

tom 63

|

nr 1

9-20

11

Zastosowanie i znaczenie analizy sekwencji genu gyrB w badaniach bakterii chorobotworczych dla roslin

75%

Sulikowska M., Pulawska J., Sobiczewski P.

Postępy Mikrobiologii

|

2007

|

tom 46

|

nr 1

21-27

12

Skąd się wzięły pióra ptaków? - przegląd hipotez

75%

Sabath K.

Przegląd Zoologiczny

|

1990

|

tom 34

|

nr 1

13

Lolium perenne w Polsce - filogeneza, taksonomia i rozmieszczenie

75%

Frey L.

Łąkarstwo w Polsce

|

2002

|

tom 05

57-64

This article reviews the selected problems concerning the taxonomy, karyology, origin, and distribution of the genus Lolium, and especially of L. perenne. The genus consists of eight diploid (2n = 14) species. Four are cross-pollinated (e.g. L. perenne, L. multiflorum), and four are self-pollinated (e.g. L. temulentum, L. remotum). From the taxonomical point of view the first group is often classified as the section Lolium and the second as the section Craepalia. They all originate from the Mediterranean region, most of them are widely distributed in Eurasia and introduced in Africa, Americas, and Australia. In Poland occur: L. perenne, L. multiflorum, L. temulentum, L. rigidum as well as L. remotum and L. subulatum, which occurrence seems to be doubtful. L. perenne is morphologically differentiated and sometimes it is divided (on the basis of inflorescence characters) into several infraspecific taxa, usually varieties. It cross easily with L. multiforum, L. rigidum, other species of the genus and even with some representatives of Festuca. This interfertility suggests that there is no barrier to free gene-exchange between them. The species originate probably from the Mediterranean region, however its natural geographical distribution is rather obscure (at present it is impossible to distinguish its natural and synanthropic localities). In Poland it occurs in the whole territory of the country. L. perenne belongs to the apophytes for which we did not succeed in showing the community of origin. Presently, it grows in ruderal, segetal and seminatural communities of the class Molinio-Arrhenatheretea. Undoubtedly, L. perenne together with other species of the genus constitute an important group of grasses of great interest to botanists as well as to plant breeders and agriculturists. For this reason further fundamental and complementary studies should be carried out.

14

Wykorzystanie analizy sekwencji DNA w badaniach filogenetycznych i taksonomicznych mszakow

75%

Fiedorow P., Pacak A.

Postępy Biologii Komórki

|

2001

|

tom 28

|

nr 3

431-441

15

The role of paleontological data in testing homology by congruence

75%

Rieppel O.

Acta Palaeontologica Polonica

|

1993

|

tom 38

|

nr 3-4

295-302

With homology being defined as shared similarity due to common ancestry, any initial perception of similarity (or relative invariance) among organisms may be treated as a conjecture of homology to be tested by congruence. The phylogenetic information content is therefore not with the character itself, but lies in the relation of any one character to all others known. The "principle of total evidence" thus emerges as a logical corollary of the distinction of homology and homoplasy, the most severe test of homology involving all known characters in the search for the globally most congruent pattern. In a study combining fossil and extant organisms, however, the issue of missing characters raises the question of implicit a priori weighting, because some sources for characters (soft anatomy, molecular, physiological, behavioral) remain unknown in fossils. The issue of missing data in fossils requires further study before the potential impact of fossils on a classification based on extant organisms can be properly assessed.

16

Drogi czy bezdroża systematyki grzybów wyższych? Zamiast recenzji książki W. Julicha Higher taxa of Basidiomycetes

75%

Szczepka M. Z.

Wszechświat

|

1989

|

tom 90

|

nr 07-08

17

Sto milionow lat ewolucji Lepidosauromorpha i pochodzenie jaszczurek

75%

Borsuk-Bialynicka M.

Kosmos

|

1996

|

tom 45

|

nr 4

623-644

18

Nowe spojrzenie na filogeneze z punktu widzenia genomiki

75%

Sobczynski M., Mackiewicz P., Mackiewicz D., Smolarczyk K., Cebrat S.

Biotechnologia

|

2005

|

nr 3

102-117

19

Ewolucja i systematyka nicieni w oparciu o badania molekularne

75%

Okulewicz A., Perec A.

Wiadomości Parazytologiczne

|

2004

|

tom 50

|

nr 2

101-108

20

An estimation method of phylogenetic links of vertebrates based on characters of their locomotory apparatus

75%

Sikorska-Piwowska Z.

Zoologica Poloniae

|

1993

|

tom 38

5-25

Ograniczanie wyników