Domestication is associated with increased interspecific hybrid compatibility in landfowl (order: Galliformes).

IF 3 2区 生物学 Q2 EVOLUTIONARY BIOLOGY Journal of Heredity Pub Date : 2024-02-03 DOI:10.1093/jhered/esad059
James M Alfieri, Reina Hingoranee, Giridhar N Athrey, Heath Blackmon
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Abstract

Some species are able to hybridize despite being exceptionally diverged. The causes of this variation in accumulation of reproductive isolation remain poorly understood, and domestication as an impetus or hindrance to reproductive isolation remains to be characterized. In this study, we investigated the role of divergence time, domestication, and mismatches in morphology, habitat, and clutch size among hybridizing species on reproductive isolation in the bird order Galliformes. We compiled and analyzed hybridization occurrences from literature and recorded measures of postzygotic reproductive isolation. We used a text-mining approach leveraging a historical aviculture magazine to quantify the degree of domestication across species. We obtained divergence time, morphology, habitat, and clutch size data from open sources. We found 123 species pairs (involving 77 species) with known offspring fertility (sterile, only males fertile, or both sexes fertile). We found that divergence time and clutch size were significant predictors of reproductive isolation (McFadden's Pseudo-R2 = 0.59), but not habitat or morphological mismatch. Perhaps most interesting, we found a significant relationship between domestication and reproductive compatibility after correcting for phylogeny, removing extreme values, and addressing potential biases (F1,74 = 5.43, R2 = 0.06, P-value = 0.02). We speculate that the genetic architecture and disruption in selective reproductive regimes associated with domestication may impact reproductive isolation, causing domesticated species to be more reproductively labile.

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家禽的驯化与种间杂交亲和性的提高有关(目的:Galliformes)。
有些物种能够杂交,尽管它们有着特殊的分化。生殖隔离积累中这种变化的原因仍然知之甚少,驯化作为生殖隔离的推动力或障碍仍有待确定。在这项研究中,我们研究了分化时间、驯化以及杂交物种之间形态、栖息地和离合器大小的不匹配对Galliformes目鸟类繁殖隔离的影响。我们汇编和分析了文献中的杂交现象,并记录了受精后生殖隔离的测量结果。我们使用了一种文本挖掘方法,利用历史鸟类文化杂志来量化不同物种的驯化程度。我们从公开来源获得了分化时间、形态、栖息地和离合器大小的数据。我们发现123个物种对(涉及77个物种)具有已知的后代生育能力(不育、只有雄性能生育或两性都能生育)。我们发现,分化时间和离合器大小是生殖隔离的重要预测因素(McFadden's Pseudo-R 2=0.59),但不是栖息地或形态不匹配。也许最有趣的是,在校正了系统发育、去除了极值后,我们发现驯化和生殖相容性之间存在显著关系,以及解决潜在的偏差(F1,74=5.43,R2=0.06,p值=0.02)。我们推测,与驯化相关的选择性繁殖制度的遗传结构和破坏可能会影响繁殖隔离,导致驯化物种更不稳定。
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来源期刊
Journal of Heredity
Journal of Heredity 生物-遗传学
CiteScore
5.20
自引率
6.50%
发文量
63
审稿时长
6-12 weeks
期刊介绍: Over the last 100 years, the Journal of Heredity has established and maintained a tradition of scholarly excellence in the publication of genetics research. Virtually every major figure in the field has contributed to the journal. Established in 1903, Journal of Heredity covers organismal genetics across a wide range of disciplines and taxa. Articles include such rapidly advancing fields as conservation genetics of endangered species, population structure and phylogeography, molecular evolution and speciation, molecular genetics of disease resistance in plants and animals, genetic biodiversity and relevant computer programs.
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