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Previous issue date: 2016-09-01 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Contact zones between Alouatta caraya and A. guariba clamitans with mixed groups has
been recently documented and hybridization was inferred by the presence of individuals with
mixed morphological patterns. Here we sequenced thousands of ultraconserved elements in noninvasive
fecal samples within a hybrid zone and from adjacent populations from both species and
characterize 3302 polymorphic sites. We found several F1 hybrids in a narrow contact zones,
derived from both combinations of parents, but also found evidence of hybrids in the A. g.
clamitans zone that likely originated from serial backcrosses of hybrid males with purebred A. g.
clamitans females. There is no evidence of any maternal (mtDNA) introgression, and only two
female F1 hybrids were found, therefore female F1 hybrids seem inviable or infertile. On the
other hand, we found bidirectional introgression of the Y-chromosomes at least tens of
kilometers away from both sides of the contact zone, in otherwise apparently purebred
individuals, indicating a not recent introgression mediated by males. / Zonas de contato, com presen?a de bandos mistos, entre Alouatta caraya e Alouatta
guariba clamitans, tem sido recentemente documentada e a hibrida??o foi inferida pela presen?a
de indiv?duos com padr?es morfol?gicos mistos. Neste estudo n?s sequenciamos milhares de
regi?es ultra conservadas em amostras n?o-invasivas de fezes dentro de uma zona hibrida e de
popula??es adjacentes das duas esp?cies e caracterizamos 3302 s?tios polim?rficos. N?s
encontramos h?bridos F1 limitados a zona de contato, derivados das duas combina??es de
parentesco, mas tamb?m encontramos evid?ncia de h?bridos na zona de A. g. clamitans
originados de retrocruzamentos por v?rias gera??es de h?bridos com indiv?duos provavelmente
puros de A. g. clamitans. N?o existe evid?ncia de nenhum introgress?o maternal (mtDNA), e
somente duas f?meas hibridas F1, ent?o f?meas hibridas F1 parecem ser invi?veis ou inf?rteis.
Por outro lado, encontramos introgress?o bidirecional do cromossomo Y a pelo menos dezenas
de quil?metros al?m da zona de contato em ambos os lados, em indiv?duos sem outro sinal de
introgress?o, sinalizando uma introgress?o antiga mediada pelos machos.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/7752 |
| Date | 01 September 2016 |
| Creators | Trinade, Rhaysa Avila |
| Contributors | Bonatto, Sandro Luis, Mourth?, Italo Martins da Costa |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s Gradua??o em Zoologia, PUCRS, Brasil, Faculdade de Bioci?ncias |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 36528317262667714, 500, 500, 600, -6482652380601267558, 2075167498588264571 |
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