The mitochondrial DNA is regarded as fast evolving, but its mode of maternal inheritance can only reveal the presence of divergent lineages and cannot confirm the existence of reproductive isolation between lineages.
In our study, no punctated fluorescence corresponding to plastid DNA aggregates was observed in mature pollen grains of Sonneratia alba and Bruguiera gymnorrhiza (Fig. 1), indicating the mode of maternal chloroplast DNA inheritance in these species.
Model 1 was built on birth factors of potential relevance, specifically: sex, birth weight, gestational age, mode of delivery, maternal age, maternal BMI and maternal smoking during late pregnancy.
Predictors included those maternal and infant factors recorded on the available datasets: sex, gestational age, number of mother's previous pregnancies, season of birth, mode of delivery, maternal age, maternal smoking or asthma during pregnancy, percent optimal birthweight (POBW) and the Socio-Economic Index for Area (SEIFA) [ 19] scores at the time of birth.
Secondary maternal outcomes include chorioamnionitis, postpartum infection treated with antibiotics, antepartum haemorrhage, induction of labour, mode of delivery, maternal satisfaction with care, duration of hospitalisation, and maternal wellbeing at four months postpartum.
From the DMBR, we obtained data on sex of child, birth order, multiple birth, gestational age, mother's age at delivery, mode of delivery, maternal smoking during pregnancy (recorded from 1991), and maternal pregravid body mass index (recorded from 2004).
Determinants for 18-month infection or death were explored using a Cox model with the following variables: peripartum ARV regimen combined with infant feeding option, place and mode of delivery, maternal eligibility for ART, and low-birth weight as a proxi of prematurity.
This study focused on mode of delivery, maternal age and education status.
Secondary outcomes are mode of delivery, maternal and neonatal morbidity, costs and women's preference.
