Factors limiting hybridization between Penstemon spectabilis and Penstemon centranthifolius

Canadian Journal of Botany

Volumn 79, Issue 12, 2001, Pages 1439-1448

  Chari, Jeannie ^a   Wilson, Paul ^a  

^a CALIFORNIA STATE UNIVERSITY   (United States)

Author keywords

Hybridization; Introgression; Penstemon; Reproductive isolating barriers; Speciation

Indexed keywords

GROWTH KINETICS; MOLECULAR BIOLOGY; SEED; TISSUE;

HYBRIDIZATIONS; POLLINATIONS;

PLANTS (BOTANY);

HYBRIDIZATION; INTROGRESSION; LIMITING FACTOR; REPRODUCTIVE ISOLATION; SPECIATION (BIOLOGY);

EMBRYOPHYTA; PENSTEMON; PENSTEMON CENTRANTHIFOLIUS; PENSTEMON SPECTABILIS;

EID: 0035719957     PISSN: 00084026     EISSN: None     Source Type: Journal    
DOI: 10.1139/cjb-79-12-1439     Document Type: Article

References (41)

1. Pollen transfer by natural hybrids and parental species in an Ipomopsis hybrid zone
2. Differences in pollen-pube growth rate and reproductive isolation between Louisiana irises
3. Effect of differential pollen tube growth on hybridization in the Louisiana irises
4. Morphometrics and ecological isolation in sympatric Spiranthes (Orchidaceae) in southwestern Ontario
5. The comparative biology of the two closely-related species Penstemon tenuiflorus Pennell and P. hirsutus (L.) Willd. (Scrophulariaceae, Section Graciles): II. Reproductive biology
6. The effect of habitat on parental and hybrid fitness: Transplant experiments with Louisiana irises
7. Floral isolation between Aquilegia formosa and Aquilegia pubescens
8. Maintenance of the species boundary between Silene dioica and S. latifolia (red and white campion)
9. Mechanical isolation of Salvia apiana and Salvia mellifera (Labiatae)
10. Modes and origins of mechanical and ethological isolation in angiosperms
11. Floral and ecological isolation between Aquilegia formosa and Aquilegia pubescens
12. Conspecific sperm and pollen precedence and speciation
13. Intersectional cottonwoods hybrids are particularly susceptible to the poplar bud gall mite
14. Seed germination and life history syndromes in the California chaparral
15. Genetic analysis of an interspecific hybrid swarm of Populus: Occurrence of unidirectional introgression
16. Pollen competition as a reproductive isolating mechanism between two sympatric Hibiscus species (Malvaceae)
17. Crossability barriers in neotropical Heliconia
18. Dynamics of a hybrid zone in Phlox: An experimental demographic investigation
19. Is Penstemon centranthifolius truly hummingbird pollinated?
20. Hybrid sterility as a reproductive barrier isolating the two subspecies of Aegilops geniculata Roth (Gramineae)
21. Prezygotic endogenous barriers to interspecific hybridization in Prunus
22. Interspecific pollen competition as a reproductive barrier between sympatric species of Helianthus (Asteraceae)
23. Hybridization, homogamy, and sympatirc speciation
24. Adaptive morphology of the Pentstemon flower
25. Floral isolation in Penstemon
26. Pollen presentation and pollination syndromes, with special reference to Penstemon
27. Barriers to hybridization in calcicolous and silicicolous populations of Silene nutans from Belgium
28. Narrow hybrid zone between two subspecies of big sagebrush (Artemisia tridentata: Asteraceae). IV. Reciprocal transplant experiments
29. Pollinator behavior and plant speciation: Looking beyond the "ethological isolation" paradigm
30. Reproductive strategies and barriers to hybridization between Tellima grandiflora and Tolmei menziesii (Saxifragaceae)
31. Heterogeneity among floral visitors leads to discordance between removal and deposition of pollen
32. Three naturally occurring Penstemon hybrids
33. Tests of pre- and postpollination barriers to hybridization between sympatric species of Ipomopsis (Polemoniaceae)
34. Diploid hybrid speciation in Penstemon (Scrophularieaceae) revisited
35. Nuclear ribosomal DNA restriction-site variation in Penstemon section Peltanthera (Scrophulariaceae): An evaluation of diploid hybrid speciation and evidence for introgression
36. Evidence of chloroplast and pollen-mediated gene flow in Penstemon sect. Peltanthera (Scrophulariaceae)
37. Assessing hybridization in natural populations of Penstemon (Scrophulariaceae) using hypervariable intersimple sequence repeat (ISSR) bands
38. Diploid hybrid speciation in Penstemon (Scrophulariacea)