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1

Genetic diversity and relationships of cacao (Theobroma cacao L.) in southern Mexico

R. Whitkus, M. de la Cruz, L. Mota-Bravo, A. Gómez-Pompa

Journal:

Theoretical and Applied Genetics

Year:

1998

Language:

english

File:

PDF, 166 KB

english, 1998

2

Extreme ecological and phenotypic differences in the tropical tree chicozapote (Manilkara zapota (L.) P. Royen) are not matched by genetic divergence: a random amplified polymorphic DNA (RAPD) analysis

H. J. Heaton, R. Whitkus, A. Gómez-Pompa

Journal:

Molecular Ecology

Year:

1999

Language:

english

File:

PDF, 191 KB

english, 1999

3

A Numerical Analysis of Flavonoid Variation in Arnica Subgenus Austromontana (Asteraceae)

Steven J. Wolf and Richard Whitkus

Journal:

American Journal of Botany

Year:

1987

Language:

english

File:

PDF, 1.19 MB

english, 1987

4

Genetics of adaptive radiation in Hawaiian species of Tetramolopium (Asteraceae). III. Evolutionary genetics of sex expression

Whitkus, Richard, Doan, Hahn, Lowrey, Timothy K

Journal:

Year:

2000

Language:

english

File:

PDF, 152 KB

english, 2000

5

Analysis of cross-compatibility inEriastrum densifolium(Polemoniaceae)

Mark S. Brunell, Richard Whitkus

Journal:

Plant Systematics and Evolution

Year:

1999

Language:

english

File:

PDF, 863 KB

english, 1999

6

Quantitative morphological variation inTetramolopium(Asteraceae) in Hawaii and the Cook Islands

M. Okada, T. K. Lowrey, R. Whitkus

Journal:

Plant Systematics and Evolution

Year:

2000

Language:

english

File:

PDF, 1005 KB

english, 2000

7

Chromosomes tell half of the story: the correlation between karyotype rearrangements and genetic diversity in sedges, a group with holocentric chromosomes

ANDREW L. HIPP, PAUL E. ROTHROCK, RICHARD WHITKUS, JAIME A. WEBER

Journal:

Molecular Ecology

Year:

2010

Language:

english

File:

PDF, 674 KB

english, 2010

8

Allozyme Variation within and between Populations of Coreopsis latifolia (Asteraceae)

Daniel J. Crawford, Barbara J. Post, Richard Whitkus

Journal:

Plant Species Biology

Year:

1988

File:

PDF, 1.06 MB

1988

9

Genetic Structure in a Heterocyanic Population of Trillium sessile (Liliaceae)

Richard Whitkus, Finley A. Bryan, Donald H. Les, Lucy E. Tyrrell

Journal:

Plant Species Biology

Year:

1987

File:

PDF, 1.40 MB

1987

10

Susceptibility to Phytophthora ramorum in a key infectious host: landscape variation in host genotype, host phenotype, and environmental factors

Brian L. Anacker, Nathan E. Rank, Daniel Hüberli, Matteo Garbelotto, Sarah Gordon, Tami Harnik, Richard Whitkus, Ross Meentemeyer

Journal:

New Phytologist

Year:

2008

Language:

english

File:

PDF, 426 KB

english, 2008

11

Origins of cacao cultivation

Cruz, Marlene de la, Whitkus, Richard, Gómez-Pompa, Arturo, Mota-Bravo, Luis

Journal:

Year:

1995

File:

PDF, 258 KB

1995

12

Genetics of adaptive radiation in Hawaiian species of Tetramolopium (Asteraceae). III. Evolutionary genetics of sex expression

Richard Whitkus, Hahn Doan, Timothy K. Lowrey

Journal:

Year:

2000

Language:

english

File:

PDF, 152 KB

english, 2000

13

Tropical tree DNA isolation and amplification

M. DE LA CRUZ, R. WHITKUS, L. MOTA-BRAVO

Journal:

Molecular Ecology

Year:

1995

Language:

english

File:

PDF, 397 KB

english, 1995

14

Genetic and physical mapping of homoeologous recombination points involving wheat chromosome 2B and rye chromosome 2R

Lukaszewski, A J, Rybka, K, Korzun, V, Malyshev, S V, Lapinski, B, Whitkus, R

Journal:

Year:

2004

File:

PDF, 431 KB

2004

15

Distribution of Spontaneous Plant Hybrids

Norman C. Ellstrand, Richard Whitkus and Loren H. Rieseberg

Journal:

Proceedings of the National Academy of Sciences

Year:

1996

Language:

english

File:

PDF, 791 KB

english, 1996

16

Editors' Report for Volume 59

Ritter, Matt, Whitkus, Richard

Journal:

Year:

2012

Language:

english

File:

PDF, 25 KB

english, 2012

17

Editors' Report for Volume 58

Lowrey, Tim, Whitkus, Richard

Journal:

Year:

2011

Language:

english

File:

PDF, 20 KB

english, 2011

18

Editors’ Report for Volume 56

Lowrey, Tim, Whitkus, Richard

Journal:

Year:

2009

Language:

english

File:

PDF, 24 KB

english, 2009

19

Editors' Report for Volume 57

Lowrey, Tim, Whitkus, Richard

Journal:

Year:

2010

Language:

english

File:

PDF, 24 KB

english, 2010

20

Editors' Report For Volume 60

Ritter, Matt, Whitkus, Richard

Journal:

Year:

2013

Language:

english

File:

PDF, 24 KB

english, 2013

21

Editors' Note

Lowrey, Timothy, Whitkus, Richard

Journal:

Year:

2010

Language:

english

File:

PDF, 23 KB

english, 2010

22

A contribution to the taxonomy of the Carex macloviana aggregate (Cyperaceae) in western Canada and Alaska

Whitkus, Richard, Packer, John G.

Journal:

Canadian Journal of Botany

Year:

1984

Language:

english

File:

PDF, 1.11 MB

english, 1984

23

Construction of an RFLP map in sorghum and comparative mapping in maize

Pereira, M.G., Lee, M., Bramel-Cox, P., Woodman, W., Doebley, J., Whitkus, R.

Journal:

Year:

1994

Language:

english

File:

PDF, 636 KB

english, 1994

24

Assessment of Morphological Variation in Eriastrum densifolium (Polemoniaceae): Implications for Subspecific Delimitation and Conservation

Brunell, Mark S., Whitkus, Richard

Journal:

Systematic Botany

Year:

1998

Language:

english

File:

PDF, 1.96 MB

english, 1998

25

Experimental Hybridizations Among Chromosome Races of Carex pachystachya and the Related Species C. macloviana and C. preslii (Cyperaceae)

Whitkus, Richard

Journal:

Systematic Botany

Year:

1988

Language:

english

File:

PDF, 957 KB

english, 1988

26

Allozyme Divergence and the Mode of Speciation for Coreopsis gigantea and C. maritima (Compositae)

Crawford, Daniel J., Whitkus, Richard

Journal:

Systematic Botany

Year:

1988

Language:

english

File:

PDF, 1.01 MB

english, 1988

27

A New Species Of Tetramolopium (Asteraceae) from Mitiaro, Cook Islands: Biogeography, Phylogenetic Relationships, and Dispersal

Lowrey, Timothy K., Whitkus, Richard, Sykes, William R.

Journal:

Systematic Botany

Year:

2005

Language:

english

File:

PDF, 282 KB

english, 2005

28

Biochemical Basis of Floral Color Polymorphism in a Heterocyanic Population of Trillium sessile (Liliaceae)

Donald H. Les, R. Whitkus, F. A. Bryan and L. E. Tyrell

Journal:

American Journal of Botany

Year:

1989

Language:

english

File:

PDF, 1.16 MB

english, 1989

29

Allozyme Variation within the Carex pachystachya Complex (Cyperaceae)

Richard Whitkus

Journal:

Systematic Botany

Year:

1992

Language:

english

File:

PDF, 892 KB

english, 1992

30

A New Species of Tetramolopium (Asteraceae) from Mitiaro, Cook Islands: Biogeography, Phylogenetic Relationships, and Dispersal

Timothy K. Lowrey, Richard Whitkus and William R. Sykes

Journal:

Systematic Botany

Year:

2005

Language:

english

File:

PDF, 1.61 MB

english, 2005

31

Chromosome Counts of Carex Section Ovales

Richard Whitkus

Journal:

Botanical Gazette

Year:

1991

Language:

english

File:

PDF, 1.29 MB

english, 1991

32

RAPD Marker Variation in Eriastrum densifolium (Polemoniaceae): Implications for Subspecific Delimitation and Conservation

Mark S. Brunell and Richard Whitkus

Journal:

Systematic Botany

Year:

1997

Language:

english

File:

PDF, 1.23 MB

english, 1997

33

Genetics of Adaptive Radiation in Hawaiian and Cook Islands Species of Tetramolopium (Asteraceae; Astereae). I. Nuclear RFLP Marker Diversity

Miki Okada, Richard Whitkus and Timothy K. Lowrey

Journal:

American Journal of Botany

Year:

1997

Language:

english

File:

PDF, 1.89 MB

english, 1997

34

CHROMOSOME NUMBERS OF SOME NORTHERN NEW JERSEY CARICES

Richard Whitkus

Journal:

Year:

1981

Language:

english

File:

PDF, 358 KB

english, 1981

35

Susceptibility to Phytophthora ramorum in a Key Infectious Host: Landscape Variation in Host Genotype, Host Phenotype, and Environmental Factors

Brian L. Anacker, Nathan E. Rank, Daniel Hüberli, Matteo Garbelotto, Sarah Gordon, Tami Harnik, Richard Whitkus and Ross Meentemeyer

Journal:

New Phytologist

Year:

2008

Language:

english

File:

PDF, 2.31 MB

english, 2008

36

Distribution of spontaneous plant hybrids.

Ellstrand, N. C., Whitkus, R., Rieseberg, L. H.

Journal:

Proceedings of the National Academy of Sciences

Year:

1996

Language:

english

File:

PDF, 781 KB

english, 1996

37

FORTRAN program for computing genetic statistics from allelic frequency data

Whitkus, Richard

Journal:

Journal of Heredity

Year:

1985

Language:

english

File:

PDF, 117 KB

english, 1985

38

A NUMERICAL ANALYSIS OF FLAVONOID VARIATION IN ARNICA SUBGENUS AUSTROMONTANA (ASTERACEAE)

Wolf, Steven J., Whitkus, Richard

Journal:

American Journal of Botany

Year:

1987

File:

PDF, 540 KB

1987

39

BIOCHEMICAL BASIS OF FLORAL COLOR POLYMORPHISM IN A HETEROCYANIC POPULATION OF TRILLIUM SESSILE (LILIACEAE)

Les, Donald H., Whitkus, R., Bryan, F. A., Tyrell, L. E.

Journal:

American Journal of Botany

Year:

1989

Language:

english

File:

PDF, 599 KB

english, 1989

40

Development of Arm Specific RAPD Markers for Rye Chromosome 2R in Wheat

Brunell, Mark S., Lukaszewski, Adam J., Whitkus, Richard

Journal:

Year:

1999

File:

PDF, 69 KB

1999