NDLI: Patterns of male sterility within and among populations of the distylous shrub Erythroxylum havanense (erythroxylaceae)

Content Provider	Springer Nature Link
Author	Cuevas, Eduardo Molina Freaner, Francisco Eguiarte, Luis E. Domínguez, César A.
Copyright Year	2005
Abstract	Distyly, a reproductive system characterized by the presence of long-styled (thrum). and short-styled (pin) individuals within a population, has been repeatedly used as a model for the study of the evolution of the reproductive systems in plants. Erythroxylum havanense is a distylous species in which most thrum plants fail to develop a fertile androecium, thus behaving as male-sterile or partially male-sterile plants. Short-styled (thrum) individuals have an increased performance as female parents, thereby compensating for their loss of male fitness. Previous studies of populations within close proximity to each other suggest that E. havanense may be involved in a process of gender specialization in which, unlike other heterostylous species, thrum plants are specializing as females and pins (long-styled) as males. In this paper we describe more general patterns of male sterility, one of the first steps in the evolution of gender specialization, among populations of the distylous shrub Erythroxylum havanense. Pollen germination differed among populations (range 0.52 ± 0.03 to 0.06 ± 0.04), and between morphs. Pollen from pin plants was almost two times (1.89) as fertile as that from thrums (0.36 ± 0.03 and 0.19 ± 0.03, pin and thrums respectively). Thrums were significantly more male sterile in four out of five populations. The population where differences between the floral morphs were not apparent showed the lowest levels of pollen fertility. Accordingly, our results indicate that populations of E. havanense show marked differences in pollen fertility and higher male sterility associated with the thrum morph. We hypothesize that differences between morphs could be explained if restorers of male sterility are linked to the distyly haplotype, while differences in genes associated with male sterility could explain the variation among populations. Overall, the prevalence of thrum-biased male sterility across populations suggests that E. havanense is subject to a process of gender specialization.
Starting Page	165
Ending Page	172
Page Count	8
File Format	PDF
ISSN	13850237
Journal	Plant Ecology
Volume Number	176
Issue Number	2
e-ISSN	15735052
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Distyly Gender specialization Male sterility Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Plant Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Environmentally induced variation in fecundity compensation in the morph-biased male-sterile distylous shrub Erythroxylum havanense (Erythroxylaceae).

Male sterility, fitness gain curves and the evolution of gender specialization from distyly in Erythroxylum havanense

Distyly and heteromorphic incompatibility in oceanic island species ofErythroxylum (Erythroxylaceae)

Pre-dispersal seed predation reduces the reproductive compensatory advantage of thrum individuals in Erythroxylum havanense (Erythroxylaceae)

Names, types, and distribution of neotropical species of Erythroxylum (Erythroxylaceae)

Male sterility and reproductive output in distylous Erythroxylum suberosum (Erythroxylaceae)

Two new species of Erythroxylum sect. Rhabdophyllum (Erythroxylaceae) from north-eastern Brazil

Asymmetry in pollen flow promotes gender specialization in morphs of the distylous neotropical herb Arcytophyllum lavarum (Rubiaceae)

Local genetic differentiation among populations of the mass‐flowering tropical shrub Erythroxylum havanense (Erythroxylaceae)

Patterns of male sterility within and among populations of the distylous shrub Erythroxylum havanense (erythroxylaceae)

Similar Documents

Environmentally induced variation in fecundity compensation in the morph-biased male-sterile distylous shrub Erythroxylum havanense (Erythroxylaceae).

Male sterility, fitness gain curves and the evolution of gender specialization from distyly in Erythroxylum havanense

Distyly and heteromorphic incompatibility in oceanic island species ofErythroxylum (Erythroxylaceae)

Pre-dispersal seed predation reduces the reproductive compensatory advantage of thrum individuals in Erythroxylum havanense (Erythroxylaceae)

Names, types, and distribution of neotropical species of Erythroxylum (Erythroxylaceae)

Male sterility and reproductive output in distylous Erythroxylum suberosum (Erythroxylaceae)

Two new species of Erythroxylum sect. Rhabdophyllum (Erythroxylaceae) from north-eastern Brazil

Asymmetry in pollen flow promotes gender specialization in morphs of the distylous neotropical herb Arcytophyllum lavarum (Rubiaceae)

Local genetic differentiation among populations of the mass‐flowering tropical shrub Erythroxylum havanense (Erythroxylaceae)

Patterns of male sterility within and among populations of the distylous shrub Erythroxylum havanense (erythroxylaceae)