Dataset presentation

We chose to evaluate data with transferred tumours and data with spontaneous tumours individually to avoid model contrasts with missing categories (Rob has no spontaneous tumours, whereas Mt has no transferred tumours).

Both data sets feature the following variables :

ID refers to the individual’s tracking identifier.

Manipulator refers to the person who performed the grafts.

donor designates the lineage of the graft donor: Mt, SpB or Rob.

donor_status refers to the absence or presence of tumors in the graft donor.

donor_tentacle refers to the number of tentacles on the graft donor

recipient designates the lineage of the recipient individual (SpB, TV for the wild group)

recipient_tentacle refers to the number of tentacles on the graft recipient

batch designates the graft batch (depending on the day/time and the manipulator who produced a graft batch)

date_draft refers to the day of the graft

abnormalities refers to whether or not developmental abnormalities were observed

dateT designates the number of days (post-transplant) at which tumors appeared (or not if NA) in the focal individual

Tumors codes 0 for individuals who have never developed tumors and 1 for individuals who have developed tumors during the post-grafting following period.

dateD corresponds to the number of days (post-transplant) at which individuals died (or not if NA).

Death codes 0 for individuals who remained alive throughout the following period and 1 for individuals who died during the post-grafting following period.

tenta_1 à 10 corresponds to the number of tentacles of each individual each week of the post-grafting following period (1 to 10).

buds_1 to 10 refers to the number of buds produced by each individual each week of the post-grafting following period (1 to 10).

tumor size before freezing refers to the tumor size before freezing of the individual (if the hydra remains alive throughout the post-grafting follow-up period), see Tissot et all 2023 for an explanation of the scale used

tenta_max is the maximum number of tentacles developed by tracked individuals during the post-grafting follow-up period (if the hydra remains alive throughout the follow-up period).

diff_max is the difference between the maximum number of tentacles developed during the post-grafting follow-up period minus the number of tentacles of the individual 1 week after grafting.

diff_max_R is the difference between the maximum number of tentacles developed during the post-grafting follow-up period minus the number of tentacles of the recipient before grafting.

##        ID      Manipulator donor    donor_status donor_tentacle  receiver
##  2      : 1   Justine:38   SpB:71   NT:68        Min.   :4.000   SpB:43  
##  5      : 1   Océane :66   MT :33   T :36        1st Qu.:6.000   TV :61  
##  6      : 1                                      Median :6.000           
##  14     : 1                                      Mean   :6.077           
##  17     : 1                                      3rd Qu.:6.250           
##  18     : 1                                      Max.   :9.000           
##  (Other):98                                                              
##  receiver_tentacle      lot       date_draft  abnormalities     dateT      
##  Min.   :3.00      22     :11   12/04  :11   Excluded: 0    Min.   :13.00  
##  1st Qu.:5.00      1      : 6   05/04  :10   Lost    : 0    1st Qu.:20.00  
##  Median :5.50      11     : 6   08/04  : 9   Normal  :95    Median :28.00  
##  Mean   :5.48      17     : 6   25/01  : 9   Sick    : 9    Mean   :30.98  
##  3rd Qu.:6.00      18     : 6   29/03  : 9                  3rd Qu.:41.00  
##  Max.   :7.00      2      : 5   01/02  : 7                  Max.   :62.00  
##  NA's   :4         (Other):64   (Other):49                  NA's   :43     
##  Tumors     dateD       Death     tenta_1         tenta_2         tenta_3     
##  0:43   Min.   :11.00   0:72   Min.   :3.000   Min.   :2.000   Min.   :0.000  
##  1:61   1st Qu.:34.00   1:32   1st Qu.:5.000   1st Qu.:5.000   1st Qu.:5.000  
##         Median :37.00          Median :6.000   Median :5.000   Median :5.000  
##         Mean   :39.34          Mean   :5.462   Mean   :5.282   Mean   :5.168  
##         3rd Qu.:47.00          3rd Qu.:6.000   3rd Qu.:6.000   3rd Qu.:6.000  
##         Max.   :70.00          Max.   :8.000   Max.   :8.000   Max.   :8.000  
##         NA's   :72                             NA's   :1       NA's   :3      
##     tenta_4         tenta_5        tenta_6         tenta_7         tenta_8     
##  Min.   : 0.00   Min.   :2.00   Min.   :1.000   Min.   :2.000   Min.   :0.000  
##  1st Qu.: 4.00   1st Qu.:4.00   1st Qu.:4.750   1st Qu.:4.000   1st Qu.:4.000  
##  Median : 5.00   Median :5.00   Median :5.000   Median :5.000   Median :5.000  
##  Mean   : 5.12   Mean   :5.11   Mean   :5.088   Mean   :5.147   Mean   :5.162  
##  3rd Qu.: 6.00   3rd Qu.:6.00   3rd Qu.:6.000   3rd Qu.:6.000   3rd Qu.:6.000  
##  Max.   :11.00   Max.   :8.00   Max.   :8.000   Max.   :8.000   Max.   :8.000  
##  NA's   :4       NA's   :13     NA's   :24      NA's   :29      NA's   :30     
##     tenta_9          tenta_10          buds_1           buds_2      
##  Min.   : 1.000   Min.   : 2.000   Min.   :0.0000   Min.   :0.0000  
##  1st Qu.: 4.000   1st Qu.: 5.000   1st Qu.:0.0000   1st Qu.:0.0000  
##  Median : 5.000   Median : 5.000   Median :0.0000   Median :0.0000  
##  Mean   : 5.152   Mean   : 5.257   Mean   :0.2692   Mean   :0.7087  
##  3rd Qu.: 6.000   3rd Qu.: 6.000   3rd Qu.:0.0000   3rd Qu.:1.0000  
##  Max.   :13.000   Max.   :13.000   Max.   :4.0000   Max.   :5.0000  
##  NA's   :38       NA's   :34                        NA's   :1       
##      buds_3          buds_4         buds_5           buds_6      
##  Min.   :0.000   Min.   :0.00   Min.   : 0.000   Min.   : 0.000  
##  1st Qu.:0.000   1st Qu.:1.00   1st Qu.: 1.000   1st Qu.: 1.750  
##  Median :1.000   Median :2.00   Median : 4.000   Median : 5.000  
##  Mean   :1.713   Mean   :2.84   Mean   : 4.132   Mean   : 5.362  
##  3rd Qu.:3.000   3rd Qu.:5.00   3rd Qu.: 6.500   3rd Qu.: 8.000  
##  Max.   :8.000   Max.   :9.00   Max.   :13.000   Max.   :17.000  
##  NA's   :3       NA's   :4      NA's   :13       NA's   :24      
##      buds_7           buds_8           buds_9          buds_10      
##  Min.   : 0.000   Min.   : 0.000   Min.   : 0.000   Min.   : 0.000  
##  1st Qu.: 2.000   1st Qu.: 2.000   1st Qu.: 2.000   1st Qu.: 3.000  
##  Median : 5.000   Median : 6.000   Median : 5.500   Median : 7.000  
##  Mean   : 6.316   Mean   : 7.135   Mean   : 7.561   Mean   : 8.457  
##  3rd Qu.: 9.250   3rd Qu.:10.000   3rd Qu.:11.000   3rd Qu.:13.000  
##  Max.   :19.000   Max.   :27.000   Max.   :31.000   Max.   :32.000  
##  NA's   :28       NA's   :30       NA's   :38       NA's   :34      
##  Taille tumeur avant congelation Date congelation     tenta_max    
##  Min.   :0.000                   Length:104         Min.   : 3.00  
##  1st Qu.:0.000                   Class :character   1st Qu.: 5.00  
##  Median :1.000                   Mode  :character   Median : 6.00  
##  Mean   :2.015                                      Mean   : 6.01  
##  3rd Qu.:3.500                                      3rd Qu.: 6.00  
##  Max.   :6.000                                      Max.   :13.00  
##  NA's   :36                                                        
##     diff_max        diff_maxR   
##  Min.   :0.0000   Min.   :-1.0  
##  1st Qu.:0.0000   1st Qu.: 0.0  
##  Median :0.0000   Median : 0.0  
##  Mean   :0.5481   Mean   : 0.5  
##  3rd Qu.:1.0000   3rd Qu.: 1.0  
##  Max.   :6.0000   Max.   : 6.0  
##                   NA's   :4
##        ID       Manipulator  donor    donor_status donor_tentacle   receiver
##  1      :  1   Justine: 63   SpB:95   NT:86        Min.   : 4.000   SpB:77  
##  2      :  1   Océane :101   Rob:69   T :78        1st Qu.: 6.000   TV :87  
##  3      :  1                                       Median : 7.000           
##  4      :  1                                       Mean   : 7.817           
##  13     :  1                                       3rd Qu.: 9.000           
##  14     :  1                                       Max.   :18.000           
##  (Other):158                                                                
##  receiver_tentacle      lot        date_draft  abnormalities     dateT      
##  Min.   :3.000     22     : 18   12/04  :18   Excluded:  0   Min.   : 6.00  
##  1st Qu.:5.000     20     : 10   08/04  :17   Lost    :  1   1st Qu.:20.00  
##  Median :6.000     16     :  9   29/03  :17   Normal  :154   Median :27.00  
##  Mean   :5.656     23     :  9   04/02  :14   Sick    :  9   Mean   :29.99  
##  3rd Qu.:6.000     5      :  8   05/04  :14                  3rd Qu.:37.50  
##  Max.   :8.000     8      :  8   25/01  :14                  Max.   :70.00  
##  NA's   :4         (Other):102   (Other):70                  NA's   :73     
##  Tumors     dateD       Death      tenta_1         tenta_2         tenta_3     
##  0:72   Min.   :13.00   0:105   Min.   :3.000   Min.   :2.000   Min.   :0.000  
##  1:92   1st Qu.:34.00   1: 59   1st Qu.:5.000   1st Qu.:5.000   1st Qu.:5.000  
##         Median :42.00           Median :6.000   Median :6.000   Median :6.000  
##         Mean   :44.58           Mean   :5.579   Mean   :5.549   Mean   :5.592  
##         3rd Qu.:56.25           3rd Qu.:6.000   3rd Qu.:6.000   3rd Qu.:6.000  
##         Max.   :70.00           Max.   :8.000   Max.   :8.000   Max.   :9.000  
##         NA's   :104                             NA's   :2       NA's   :7      
##     tenta_4          tenta_5          tenta_6         tenta_7      
##  Min.   : 0.000   Min.   : 0.000   Min.   : 1.00   Min.   : 2.000  
##  1st Qu.: 5.000   1st Qu.: 5.000   1st Qu.: 5.00   1st Qu.: 5.000  
##  Median : 6.000   Median : 6.000   Median : 6.00   Median : 6.000  
##  Mean   : 5.833   Mean   : 5.795   Mean   : 5.82   Mean   : 6.056  
##  3rd Qu.: 7.000   3rd Qu.: 7.000   3rd Qu.: 7.00   3rd Qu.: 7.000  
##  Max.   :13.000   Max.   :10.000   Max.   :14.00   Max.   :15.000  
##  NA's   :8        NA's   :18       NA's   :31      NA's   :40      
##     tenta_8          tenta_9          tenta_10         buds_1      
##  Min.   : 0.000   Min.   : 0.000   Min.   : 0.00   Min.   :0.0000  
##  1st Qu.: 5.000   1st Qu.: 4.750   1st Qu.: 5.00   1st Qu.:0.0000  
##  Median : 6.000   Median : 6.000   Median : 6.00   Median :0.0000  
##  Mean   : 5.873   Mean   : 5.729   Mean   : 5.99   Mean   :0.3293  
##  3rd Qu.: 7.000   3rd Qu.: 7.000   3rd Qu.: 7.00   3rd Qu.:0.2500  
##  Max.   :14.000   Max.   :13.000   Max.   :13.00   Max.   :4.0000  
##  NA's   :46       NA's   :68       NA's   :62                      
##      buds_2           buds_3           buds_4           buds_5      
##  Min.   :0.0000   Min.   : 0.000   Min.   : 0.000   Min.   : 0.000  
##  1st Qu.:0.0000   1st Qu.: 0.000   1st Qu.: 1.000   1st Qu.: 2.000  
##  Median :0.0000   Median : 2.000   Median : 3.000   Median : 5.500  
##  Mean   :0.9444   Mean   : 2.217   Mean   : 3.936   Mean   : 6.055  
##  3rd Qu.:1.7500   3rd Qu.: 3.000   3rd Qu.: 6.000   3rd Qu.: 9.000  
##  Max.   :6.0000   Max.   :11.000   Max.   :15.000   Max.   :18.000  
##  NA's   :2        NA's   :7        NA's   :8        NA's   :18      
##      buds_6           buds_7           buds_8          buds_9     
##  Min.   : 0.000   Min.   : 0.000   Min.   : 0.00   Min.   : 0.00  
##  1st Qu.: 4.000   1st Qu.: 4.750   1st Qu.: 5.00   1st Qu.: 4.75  
##  Median : 8.000   Median : 8.500   Median : 9.00   Median : 9.50  
##  Mean   : 7.857   Mean   : 9.452   Mean   :10.75   Mean   :11.26  
##  3rd Qu.:11.000   3rd Qu.:13.250   3rd Qu.:16.00   3rd Qu.:16.25  
##  Max.   :23.000   Max.   :27.000   Max.   :33.00   Max.   :39.00  
##  NA's   :31       NA's   :40       NA's   :46      NA's   :68     
##     buds_10      Taille tumeur avant congelation Date congelation  
##  Min.   : 0.00   Min.   :0                       Length:164        
##  1st Qu.: 6.00   1st Qu.:0                       Class :character  
##  Median :13.00   Median :1                       Mode  :character  
##  Mean   :13.27   Mean   :2                                         
##  3rd Qu.:19.00   3rd Qu.:4                                         
##  Max.   :43.00   Max.   :6                                         
##  NA's   :62      NA's   :63                                        
##    tenta_max         diff_max        diff_maxR     
##  Min.   : 3.000   Min.   : 0.000   Min.   :-2.000  
##  1st Qu.: 6.000   1st Qu.: 0.000   1st Qu.: 0.000  
##  Median : 6.000   Median : 0.000   Median : 0.000  
##  Mean   : 6.768   Mean   : 1.189   Mean   : 1.081  
##  3rd Qu.: 7.000   3rd Qu.: 2.000   3rd Qu.: 2.000  
##  Max.   :15.000   Max.   :11.000   Max.   :10.000  
##                                    NA's   :4